feat: basic onboarding flow\

apps/backend/prisma/models/auth.prisma

@@ -6,17 +6,19 @@ model User {
   email         String    @unique
   emailVerified Boolean   @default(false)
   image         String?
+  onboardingCompleted Boolean @default(false)
   createdAt     DateTime  @default(now())
   updatedAt     DateTime  @updatedAt
 
-  accounts       Account[]
-  sessions       Session[]
-  passkeys       Passkey[]
-  groupsMember   GroupMember[]
-  groupsOwner    Group[]        @relation("OwnerGroups")
-  orgMemberships Member[]
-  orgInvitations Invitation[]   @relation("InvitedBy")
-  waitlist       WaitlistEntry[]
+  accounts        Account[]
+  sessions        Session[]
+  passkeys        Passkey[]
+  groupsMember    GroupMember[]
+  groupsOwner     Group[]        @relation("OwnerGroups")
+  orgMemberships  Member[]
+  orgInvitations  Invitation[]   @relation("InvitedBy")
+  waitlist        WaitlistEntry[]
+  merchantAccount MerchantAccount?
 
   @@map("users")
 }

apps/backend/prisma/models/domain.prisma

@@ -1,12 +1,18 @@
 // Domain models
 
 model Group {
-  id          String   @id @default(cuid())
+  id          String      @id @default(cuid())
   name        String
   description String?
+  days        WeekDay[]
+  time        String?
+  capacity    Int?
+  price       Decimal?    @db.Decimal(10, 2)
+  billingType BillingType?
+  dueDay      Int?
   createdById String
-  createdAt   DateTime @default(now())
-  updatedAt   DateTime @updatedAt
+  createdAt   DateTime    @default(now())
+  updatedAt   DateTime    @updatedAt
 
   owner    User          @relation("OwnerGroups", fields: [createdById], references: [id], onDelete: Cascade)
   members  GroupMember[]
@@ -16,6 +22,21 @@ model Group {
   @@map("groups")
 }
 
+enum WeekDay {
+  MONDAY
+  TUESDAY
+  WEDNESDAY
+  THURSDAY
+  FRIDAY
+  SATURDAY
+  SUNDAY
+}
+
+enum BillingType {
+  MONTHLY
+  PER_CLASS
+}
+
 model GroupMember {
   id       String @id @default(cuid())
   groupId  String
@@ -103,4 +124,24 @@ enum WaitlistStatus {
   INVITED
   JOINED
   DECLINED
+}
+
+enum PaymentProvider {
+  MERCADO_PAGO
+  STRIPE
+}
+
+model MerchantAccount {
+  id          String          @id @default(cuid())
+  userId      String          @unique
+  provider    PaymentProvider
+  accessToken String?
+  sandbox     Boolean         @default(true)
+  connectedAt DateTime        @default(now())
+  createdAt   DateTime        @default(now())
+  updatedAt   DateTime        @updatedAt
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@map("merchant_accounts")
 }

apps/backend/src/app.ts

@@ -13,6 +13,7 @@ import { logger } from '@/logger';
 import { authRoutes } from './modules/auth';
 import { groupsRoutes } from './modules/groups';
 import { healthCheckRoutes } from './modules/health-check';
+import { onboardingRoutes } from './modules/onboarding';
 import { paymentsRoutes } from './modules/payments';
 import { studentsRoutes } from './modules/students';
 import { waitlistRoutes } from './modules/waitlist';
@@ -33,6 +34,7 @@ api.use('*', sessionAuthMiddleware);
 api.route('/auth', authRoutes);
 api.route('/health', healthCheckRoutes);
 api.route('/groups', groupsRoutes);
+api.route('/onboarding', onboardingRoutes);
 api.route('/students', studentsRoutes);
 api.route('/payments', paymentsRoutes);
 api.route('/waitlist', waitlistRoutes);

apps/backend/src/http/problem-builders.ts

@@ -86,4 +86,18 @@ export function noGroupAccessProblem(): ProblemDetails {
 
 export function notFoundResourceProblem(resourceName: string, id: string): ProblemDetails {
   return notFoundProblem(`${resourceName} ${id}`);
+}
+
+export function paymentNotSetupProblem(): ProblemDetails {
+  return conflictProblem({
+    detail: 'Vinculá una cuenta de cobro antes de crear tu primer grupo.',
+    code: 'payment_not_setup',
+  });
+}
+
+export function onboardingAlreadyCompletedProblem(): ProblemDetails {
+  return conflictProblem({
+    detail: 'Ya completaste el onboarding de Gruperly.',
+    code: 'onboarding_already_completed',
+  });
 }

apps/backend/src/modules/groups/features/create-from-organization/use-case.ts

@@ -12,22 +12,13 @@ import {
   organizationNotFoundProblem,
 } from '@/http/problem-builders';
 import { default as prisma, UnitOfWork } from '@/lib/prisma';
-import { type GroupDb, toGroupDto } from '../../lib';
+import { type GroupDb, type GroupRecord, toGroupDto } from '../../lib';
 
 type CreateGroupFromOrganizationDeps = {
   db?: Pick<GroupDb, 'group' | 'groupMember' | 'organization'>;
   unitOfWork?: UnitOfWork;
 };
 
-type GroupRecord = {
-  id: string;
-  name: string;
-  description: string | null;
-  createdById: string;
-  createdAt: Date;
-  updatedAt: Date;
-};
-
 export class CreateGroupFromOrganization {
   constructor(private readonly deps: CreateGroupFromOrganizationDeps = {}) {}
 

apps/backend/src/modules/groups/features/get-all/use-case.ts

@@ -8,21 +8,17 @@ import type {
 import { ok } from '@gruperly/shared';
 import { getPaginationMetadata, getPaginationOffset } from '@/lib/pagination';
 import prisma from '@/lib/prisma';
-import { buildGroupWhereForUser, type GroupDb, toGroupDto } from '../../lib';
+import {
+  buildGroupWhereForUser,
+  type GroupDb,
+  type GroupRecord,
+  toGroupDto,
+} from '../../lib';
 
 type ListGroupsDeps = {
   db?: Pick<GroupDb, 'group'>;
 };
 
-type GroupRecord = {
-  id: string;
-  name: string;
-  description: string | null;
-  createdById: string;
-  createdAt: Date;
-  updatedAt: Date;
-};
-
 export class ListGroups {
   constructor(private readonly deps: ListGroupsDeps = {}) {}
 

apps/backend/src/modules/groups/lib/helpers.ts

@@ -1,15 +1,23 @@
 import type { PrismaClient } from '@generated/prisma/client';
-import type { GroupDto } from '@gruperly/shared';
+import type { BillingType, GroupDto, WeekDay } from '@gruperly/shared';
 
 export type GroupDb = Pick<PrismaClient, 'group' | 'groupMember' | 'organization'>;
 
-type GroupRecord = {
+type PriceLike = { toString(): string };
+
+export type GroupRecord = {
   id: string;
   name: string;
   description: string | null;
   createdById: string;
   createdAt: Date;
   updatedAt: Date;
+  days: WeekDay[] | null;
+  time: string | null;
+  capacity: number | null;
+  price: PriceLike | number | null;
+  billingType: BillingType | null;
+  dueDay: number | null;
 };
 
 export function toGroupDto(record: GroupRecord): GroupDto {
@@ -20,6 +28,12 @@ export function toGroupDto(record: GroupRecord): GroupDto {
     createdById: record.createdById,
     createdAt: record.createdAt.toISOString(),
     updatedAt: record.updatedAt.toISOString(),
+    days: record.days,
+    time: record.time,
+    capacity: record.capacity,
+    price: record.price == null ? null : Number(record.price.toString()),
+    billingType: record.billingType,
+    dueDay: record.dueDay,
   };
 }
 

apps/backend/src/modules/onboarding/features/first-group/route.ts

@@ -0,0 +1,20 @@
+import type { CreateFirstGroup } from '@gruperly/shared';
+import { CreateFirstGroupSchema } from '@gruperly/shared';
+import { Hono } from 'hono';
+import { problemJson, resultJson, unauthorizedProblem } from '@/http/problem-details';
+import { validate } from '@/http/validate';
+import { CreateFirstGroup as CreateFirstGroupUseCase } from './use-case';
+
+const route = new Hono();
+
+route.post('/', validate.json(CreateFirstGroupSchema), async (c) => {
+  const user = c.get('user');
+  if (!user) return problemJson(c, unauthorizedProblem(c.req.path));
+
+  const data = c.req.valid('json') as CreateFirstGroup;
+  const useCase = new CreateFirstGroupUseCase();
+  const result = await useCase.execute(data, user.id);
+  return resultJson(c, result, { status: 201 });
+});
+
+export default route;

apps/backend/src/modules/onboarding/features/first-group/use-case.ts

@@ -0,0 +1,88 @@
+import type { Prisma, PrismaClient } from '@generated/prisma/client';
+import { Role } from '@generated/prisma/client';
+import type {
+  CreateFirstGroup as CreateFirstGroupInput,
+  CreateFirstGroupResult,
+  ProblemDetails,
+  Result,
+} from '@gruperly/shared';
+import { err, ok } from '@gruperly/shared';
+import {
+  onboardingAlreadyCompletedProblem,
+  paymentNotSetupProblem,
+} from '@/http/problem-builders';
+import { problemDetails } from '@/http/problem-details';
+import { default as prisma, UnitOfWork } from '@/lib/prisma';
+import { toOnboardingGroupDto } from '../../lib';
+
+type CreateFirstGroupDeps = {
+  db?: Pick<PrismaClient, 'user' | 'merchantAccount'>;
+  unitOfWork?: UnitOfWork;
+};
+
+export class CreateFirstGroup {
+  constructor(private readonly deps: CreateFirstGroupDeps = {}) {}
+
+  async execute(
+    data: CreateFirstGroupInput,
+    userId: string,
+  ): Promise<Result<CreateFirstGroupResult, ProblemDetails>> {
+    const db = this.deps.db ?? prisma;
+    const unitOfWork = this.deps.unitOfWork ?? new UnitOfWork(prisma);
+
+    const user = await db.user.findUnique({ where: { id: userId } });
+    if (!user) {
+      return err(problemDetails({ title: 'Not Found', status: 404, code: 'user_not_found', detail: 'Usuario no encontrado.' }));
+    }
+    if (user.onboardingCompleted) {
+      return err(onboardingAlreadyCompletedProblem());
+    }
+
+    const merchantAccount = await db.merchantAccount.findUnique({ where: { userId } });
+    if (!merchantAccount) {
+      return err(paymentNotSetupProblem());
+    }
+
+    const transaction = unitOfWork.executeResult(
+      async (tx: Prisma.TransactionClient) => {
+        const created = await tx.group.create({
+          data: {
+            name: data.name,
+            createdById: userId,
+            days: data.days,
+            time: data.time,
+            capacity: data.capacity,
+            price: data.price,
+            billingType: data.billingType,
+            dueDay: data.dueDay,
+          },
+        });
+
+        await tx.groupMember.create({
+          data: {
+            groupId: created.id,
+            userId,
+            role: Role.OWNER,
+          },
+        });
+
+        await tx.user.update({
+          where: { id: userId },
+          data: { onboardingCompleted: true },
+        });
+
+        return ok(created);
+      },
+    );
+
+    const result = await transaction;
+    if (!result.ok) {
+      return result;
+    }
+
+    return ok({
+      group: toOnboardingGroupDto(result.value),
+      onboardingCompleted: true,
+    });
+  }
+}

apps/backend/src/modules/onboarding/features/payment-setup/route.ts

@@ -0,0 +1,20 @@
+import type { ConnectPayment } from '@gruperly/shared';
+import { ConnectPaymentSchema } from '@gruperly/shared';
+import { Hono } from 'hono';
+import { problemJson, resultJson, unauthorizedProblem } from '@/http/problem-details';
+import { validate } from '@/http/validate';
+import { PaymentSetup } from './use-case';
+
+const route = new Hono();
+
+route.post('/', validate.json(ConnectPaymentSchema), async (c) => {
+  const user = c.get('user');
+  if (!user) return problemJson(c, unauthorizedProblem(c.req.path));
+
+  const data = c.req.valid('json') as ConnectPayment;
+  const useCase = new PaymentSetup();
+  const result = await useCase.execute(data, user.id);
+  return resultJson(c, result);
+});
+
+export default route;

apps/backend/src/modules/onboarding/features/payment-setup/use-case.ts

@@ -0,0 +1,38 @@
+import type { PrismaClient } from '@generated/prisma/client';
+import type { ConnectPayment, ConnectPaymentResult, ProblemDetails, Result } from '@gruperly/shared';
+import { ok } from '@gruperly/shared';
+import prisma from '@/lib/prisma';
+
+type PaymentSetupDeps = { db?: PrismaClient };
+
+export class PaymentSetup {
+  constructor(private readonly deps: PaymentSetupDeps = {}) {}
+
+  async execute(
+    data: ConnectPayment,
+    userId: string,
+  ): Promise<Result<ConnectPaymentResult, ProblemDetails>> {
+    const db = this.deps.db ?? prisma;
+
+    await db.merchantAccount.upsert({
+      where: { userId },
+      create: {
+        userId,
+        provider: data.provider,
+        accessToken: data.accessToken,
+        sandbox: data.sandbox,
+      },
+      update: {
+        provider: data.provider,
+        accessToken: data.accessToken,
+        sandbox: data.sandbox,
+      },
+    });
+
+    return ok({
+      provider: data.provider,
+      sandbox: data.sandbox,
+      connected: true,
+    });
+  }
+}

apps/backend/src/modules/onboarding/features/status/route.ts

@@ -0,0 +1,16 @@
+import { Hono } from 'hono';
+import { problemJson, resultJson, unauthorizedProblem } from '@/http/problem-details';
+import { GetOnboardingStatus } from './use-case';
+
+const route = new Hono();
+
+route.get('/', async (c) => {
+  const user = c.get('user');
+  if (!user) return problemJson(c, unauthorizedProblem(c.req.path));
+
+  const useCase = new GetOnboardingStatus();
+  const result = await useCase.execute(user.id);
+  return resultJson(c, result);
+});
+
+export default route;

apps/backend/src/modules/onboarding/features/status/use-case.ts

@@ -0,0 +1,38 @@
+import type { PrismaClient } from '@generated/prisma/client';
+import type { OnboardingStatusDto, ProblemDetails, Result } from '@gruperly/shared';
+import { err, ok } from '@gruperly/shared';
+import { problemDetails } from '@/http/problem-details';
+import prisma from '@/lib/prisma';
+
+type GetOnboardingStatusDeps = { db?: PrismaClient };
+
+export class GetOnboardingStatus {
+  constructor(private readonly deps: GetOnboardingStatusDeps = {}) {}
+
+  async execute(userId: string): Promise<Result<OnboardingStatusDto, ProblemDetails>> {
+    const db = this.deps.db ?? prisma;
+
+    const user = await db.user.findUnique({ where: { id: userId } });
+    if (!user) {
+      return err(
+        problemDetails({
+          title: 'Not Found',
+          status: 404,
+          code: 'user_not_found',
+          detail: 'Usuario no encontrado.',
+        }),
+      );
+    }
+
+    if (user.onboardingCompleted) {
+      return ok({ step: 'COMPLETED', paymentConnected: true, completed: true });
+    }
+
+    const merchantAccount = await db.merchantAccount.findUnique({ where: { userId } });
+    if (merchantAccount) {
+      return ok({ step: 'PAYMENT_CONNECTED', paymentConnected: true, completed: false });
+    }
+
+    return ok({ step: 'NOT_STARTED', paymentConnected: false, completed: false });
+  }
+}

apps/backend/src/modules/onboarding/index.ts

@@ -0,0 +1 @@
+export { default as onboardingRoutes } from './routes';

apps/backend/src/modules/onboarding/lib/helpers.ts

@@ -0,0 +1,35 @@
+import type { BillingType, OnboardingGroupDto, WeekDay } from '@gruperly/shared';
+
+type PriceLike = { toString(): string };
+
+export type OnboardingGroupRecord = {
+  id: string;
+  name: string;
+  description: string | null;
+  createdById: string;
+  createdAt: Date;
+  updatedAt: Date;
+  days: WeekDay[] | null;
+  time: string | null;
+  capacity: number | null;
+  price: PriceLike | number | null;
+  billingType: BillingType | null;
+  dueDay: number | null;
+};
+
+export function toOnboardingGroupDto(record: OnboardingGroupRecord): OnboardingGroupDto {
+  return {
+    id: record.id,
+    name: record.name,
+    description: record.description,
+    createdById: record.createdById,
+    createdAt: record.createdAt.toISOString(),
+    updatedAt: record.updatedAt.toISOString(),
+    days: record.days,
+    time: record.time,
+    capacity: record.capacity,
+    price: record.price == null ? null : Number(record.price.toString()),
+    billingType: record.billingType,
+    dueDay: record.dueDay,
+  };
+}

apps/backend/src/modules/onboarding/lib/index.ts

@@ -0,0 +1 @@
+export { type OnboardingGroupRecord, toOnboardingGroupDto } from './helpers';

apps/backend/src/modules/onboarding/routes.ts

@@ -0,0 +1,12 @@
+import { Hono } from 'hono';
+import firstGroupRoute from './features/first-group/route';
+import paymentSetupRoute from './features/payment-setup/route';
+import statusRoute from './features/status/route';
+
+const routes = new Hono();
+
+routes.route('/status', statusRoute);
+routes.route('/payment-setup', paymentSetupRoute);
+routes.route('/first-group', firstGroupRoute);
+
+export default routes;

apps/backend/test/groups.test.ts

@@ -36,6 +36,12 @@ const group = {
   createdById: userId,
   createdAt: new Date('2026-08-01T10:00:00.000Z'),
   updatedAt: new Date('2026-08-01T10:00:00.000Z'),
+  days: null,
+  time: null,
+  capacity: null,
+  price: null,
+  billingType: null,
+  dueDay: null,
 };
 
 function makeApp(userValue: unknown) {

apps/backend/test/onboarding.test.ts

@@ -0,0 +1,281 @@
+import { beforeEach, describe, expect, it, mock, vi } from 'bun:test';
+import { Hono } from 'hono';
+
+const db = {
+  user: {
+    findUnique: mock(),
+    update: mock(),
+  },
+  merchantAccount: {
+    findUnique: mock(),
+    upsert: mock(),
+  },
+  group: {
+    create: mock(),
+  },
+  groupMember: {
+    create: mock(),
+  },
+};
+
+mock.module('@/lib/prisma', () => ({
+  default: db,
+  getPrismaClient: mock(),
+  UnitOfWork: class {
+    executeResult = mock(async (cb: (tx: unknown) => Promise<unknown>) => cb(db));
+    execute = mock(async (cb: (tx: unknown) => Promise<unknown>) => cb(db));
+  },
+}));
+
+import prisma from '@/lib/prisma';
+import { onboardingRoutes } from '@/modules/onboarding';
+
+const userId = 'user-1';
+
+function makeApp(userValue: unknown) {
+  const app = new Hono();
+  app.use('*', async (c, next) => {
+    c.set('user', userValue as never);
+    await next();
+  });
+  app.route('/onboarding', onboardingRoutes);
+  return app;
+}
+
+const group = {
+  id: 'group-1',
+  name: 'Clase de Yoga',
+  description: null,
+  createdById: userId,
+  createdAt: new Date('2026-08-01T10:00:00.000Z'),
+  updatedAt: new Date('2026-08-01T10:00:00.000Z'),
+  days: ['MONDAY', 'WEDNESDAY', 'FRIDAY'],
+  time: '09:00',
+  capacity: 20,
+  price: 150.5,
+  billingType: 'MONTHLY',
+  dueDay: 5,
+};
+
+const firstGroupPayload = {
+  name: group.name,
+  days: group.days,
+  time: group.time,
+  capacity: group.capacity,
+  price: group.price,
+  billingType: group.billingType,
+  dueDay: group.dueDay,
+};
+
+describe('onboarding routes', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  describe('GET /onboarding/status', () => {
+    it('returns NOT_STARTED for a user that has not started', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: false });
+      prisma.merchantAccount.findUnique.mockResolvedValue(null);
+
+      const res = await makeApp({ id: userId }).request('/onboarding/status');
+
+      expect(res.status).toBe(200);
+      expect(await res.json()).toEqual({
+        step: 'NOT_STARTED',
+        paymentConnected: false,
+        completed: false,
+      });
+    });
+
+    it('returns PAYMENT_CONNECTED when the merchant account exists', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: false });
+      prisma.merchantAccount.findUnique.mockResolvedValue({ id: 'ma-1', userId });
+
+      const res = await makeApp({ id: userId }).request('/onboarding/status');
+
+      expect(res.status).toBe(200);
+      expect(await res.json()).toEqual({
+        step: 'PAYMENT_CONNECTED',
+        paymentConnected: true,
+        completed: false,
+      });
+    });
+
+    it('returns COMPLETED when onboarding is already done', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: true });
+
+      const res = await makeApp({ id: userId }).request('/onboarding/status');
+
+      expect(res.status).toBe(200);
+      expect(await res.json()).toEqual({
+        step: 'COMPLETED',
+        paymentConnected: true,
+        completed: true,
+      });
+    });
+
+    it('rejects without a session', async () => {
+      const res = await makeApp(null).request('/onboarding/status');
+
+      expect(res.status).toBe(401);
+      expect(await res.json()).toMatchObject({ code: 'unauthorized' });
+    });
+  });
+
+  describe('POST /onboarding/payment-setup', () => {
+    it('connects a merchant account in sandbox mode', async () => {
+      prisma.merchantAccount.upsert.mockResolvedValue({ id: 'ma-1', userId });
+
+      const res = await makeApp({ id: userId }).request('/onboarding/payment-setup', {
+        method: 'POST',
+        body: JSON.stringify({ provider: 'MERCADO_PAGO', sandbox: true }),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(200);
+      expect(await res.json()).toEqual({
+        provider: 'MERCADO_PAGO',
+        sandbox: true,
+        connected: true,
+      });
+      expect(prisma.merchantAccount.upsert).toHaveBeenCalledWith({
+        where: { userId },
+        create: { userId, provider: 'MERCADO_PAGO', accessToken: undefined, sandbox: true },
+        update: { provider: 'MERCADO_PAGO', accessToken: undefined, sandbox: true },
+      });
+    });
+
+    it('rejects an unknown provider', async () => {
+      const res = await makeApp({ id: userId }).request('/onboarding/payment-setup', {
+        method: 'POST',
+        body: JSON.stringify({ provider: 'PAYPAL' }),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(400);
+    });
+
+    it('rejects without a session', async () => {
+      const res = await makeApp(null).request('/onboarding/payment-setup', {
+        method: 'POST',
+        body: JSON.stringify({ provider: 'STRIPE', sandbox: true }),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(401);
+    });
+  });
+
+  describe('POST /onboarding/first-group', () => {
+    it('creates the first group and completes onboarding', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: false });
+      prisma.merchantAccount.findUnique.mockResolvedValue({ id: 'ma-1', userId });
+      prisma.group.create.mockResolvedValue(group);
+
+      const res = await makeApp({ id: userId }).request('/onboarding/first-group', {
+        method: 'POST',
+        body: JSON.stringify(firstGroupPayload),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(201);
+      expect(await res.json()).toEqual({
+        group: {
+          id: 'group-1',
+          name: 'Clase de Yoga',
+          description: null,
+          createdById: userId,
+          createdAt: group.createdAt.toISOString(),
+          updatedAt: group.updatedAt.toISOString(),
+          days: ['MONDAY', 'WEDNESDAY', 'FRIDAY'],
+          time: '09:00',
+          capacity: 20,
+          price: 150.5,
+          billingType: 'MONTHLY',
+          dueDay: 5,
+        },
+        onboardingCompleted: true,
+      });
+      expect(prisma.group.create).toHaveBeenCalledWith({
+        data: {
+          name: 'Clase de Yoga',
+          createdById: userId,
+          days: ['MONDAY', 'WEDNESDAY', 'FRIDAY'],
+          time: '09:00',
+          capacity: 20,
+          price: 150.5,
+          billingType: 'MONTHLY',
+          dueDay: 5,
+        },
+      });
+      expect(prisma.groupMember.create).toHaveBeenCalledWith({
+        data: { groupId: 'group-1', userId, role: 'OWNER' },
+      });
+      expect(prisma.user.update).toHaveBeenCalledWith({
+        where: { id: userId },
+        data: { onboardingCompleted: true },
+      });
+    });
+
+    it('rejects when the payment has not been set up', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: false });
+      prisma.merchantAccount.findUnique.mockResolvedValue(null);
+
+      const res = await makeApp({ id: userId }).request('/onboarding/first-group', {
+        method: 'POST',
+        body: JSON.stringify(firstGroupPayload),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(409);
+      expect(await res.json()).toMatchObject({ code: 'payment_not_setup' });
+      expect(prisma.group.create).not.toHaveBeenCalled();
+    });
+
+    it('rejects when onboarding is already completed', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: true });
+
+      const res = await makeApp({ id: userId }).request('/onboarding/first-group', {
+        method: 'POST',
+        body: JSON.stringify(firstGroupPayload),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(409);
+      expect(await res.json()).toMatchObject({ code: 'onboarding_already_completed' });
+      expect(prisma.group.create).not.toHaveBeenCalled();
+    });
+
+    it('rejects invalid payloads', async () => {
+      prisma.user.findUnique.mockResolvedValue({ id: userId, onboardingCompleted: false });
+      prisma.merchantAccount.findUnique.mockResolvedValue({ id: 'ma-1', userId });
+
+      const res = await makeApp({ id: userId }).request('/onboarding/first-group', {
+        method: 'POST',
+        body: JSON.stringify({
+          name: 'Ab',
+          days: [],
+          time: '25:99',
+          capacity: 0,
+          price: -1,
+          billingType: 'WEEKLY',
+          dueDay: 31,
+        }),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(400);
+      expect(prisma.group.create).not.toHaveBeenCalled();
+    });
+
+    it('rejects without a session', async () => {
+      const res = await makeApp(null).request('/onboarding/first-group', {
+        method: 'POST',
+        body: JSON.stringify(firstGroupPayload),
+        headers: { 'Content-Type': 'application/json' },
+      });
+
+      expect(res.status).toBe(401);
+    });
+  });
+});

apps/web/src/components/onboarding/ConfirmationStep.tsx

@@ -0,0 +1,84 @@
+import { useNavigate } from '@tanstack/react-router'
+import { useQueryClient } from '@tanstack/react-query'
+import type { OnboardingGroupDto } from '@gruperly/shared'
+import { ArrowRight, CheckCircle2, CreditCard } from 'lucide-react'
+import { useAuth } from '../../context/AuthProvider'
+import { Badge, Button } from '../ui'
+import { BILLING_LABELS, formatPrice, formatSchedule } from './constants'
+
+type ConfirmationStepProps = {
+  group: OnboardingGroupDto
+  providerName?: string
+}
+
+export function ConfirmationStep({ group, providerName }: ConfirmationStepProps) {
+  const navigate = useNavigate()
+  const queryClient = useQueryClient()
+  const { refresh } = useAuth()
+
+  const goToDashboard = () => {
+    // Revalida la caché (estado del onboarding, sesión, grupos) antes de redirigir.
+    void queryClient.invalidateQueries()
+    void refresh()
+    void navigate({ to: '/' })
+  }
+
+  return (
+    <section className="space-y-6">
+      <header className="space-y-2 text-center">
+        <span className="mx-auto flex size-14 items-center justify-center rounded-2xl bg-success-soft">
+          <CheckCircle2 className="size-7 text-success" />
+        </span>
+        <h2 className="text-2xl font-bold text-primary">¡Todo listo!</h2>
+        <p className="text-sm text-foreground/60">
+          Tu grupo se creó y ya podés empezar a cobrar a tus alumnos.
+        </p>
+      </header>
+
+      <div className="rounded-xl border border-border bg-white p-5">
+        <div className="flex items-start justify-between gap-3">
+          <div className="min-w-0">
+            <h3 className="truncate text-base font-semibold text-primary">{group.name}</h3>
+            <p className="mt-0.5 text-sm text-foreground/60">
+              {formatSchedule(group.days ?? [], group.time)}
+            </p>
+          </div>
+          <Badge variant="success">Activo</Badge>
+        </div>
+
+        <dl className="mt-4 divide-y divide-border text-sm">
+          <div className="flex items-center justify-between py-2.5">
+            <dt className="text-foreground/60">Precio</dt>
+            <dd className="font-semibold text-primary">
+              {formatPrice(group.price)}
+              {group.billingType ? ` · ${BILLING_LABELS[group.billingType]}` : ''}
+            </dd>
+          </div>
+          <div className="flex items-center justify-between py-2.5">
+            <dt className="text-foreground/60">Cupo</dt>
+            <dd className="font-semibold text-primary">{group.capacity ?? '—'} alumnos</dd>
+          </div>
+          <div className="flex items-center justify-between py-2.5">
+            <dt className="text-foreground/60">Vencimiento</dt>
+            <dd className="font-semibold text-primary">Día {group.dueDay ?? '—'} de cada mes</dd>
+          </div>
+        </dl>
+      </div>
+
+      {providerName ? (
+        <div className="flex items-center gap-2 rounded-xl bg-primary-soft px-4 py-3">
+          <CreditCard className="size-4 shrink-0 text-accent" />
+          <p className="text-xs text-primary">
+            Vas a cobrar con <span className="font-semibold">{providerName}</span> en modo
+            prueba.
+          </p>
+        </div>
+      ) : null}
+
+      <Button variant="primary" className="w-full" onClick={goToDashboard}>
+        Ir a mi Panel
+        <ArrowRight className="size-4" />
+      </Button>
+    </section>
+  )
+}

apps/web/src/components/onboarding/FirstGroupStep.tsx

@@ -0,0 +1,236 @@
+import { useMutation } from '@tanstack/react-query'
+import { zodResolver } from '@hookform/resolvers/zod'
+import { useForm } from 'react-hook-form'
+import type { BillingType, CreateFirstGroup, OnboardingGroupDto, WeekDay } from '@gruperly/shared'
+import { CreateFirstGroupSchema } from '@gruperly/shared'
+import { ArrowLeft, Check, Loader2 } from 'lucide-react'
+import { createFirstGroup } from '../../lib/api'
+import { cn } from '../../lib/utils'
+import { Button, Input, Label } from '../ui'
+import { BILLING_TYPES, WEEK_DAY_CHIPS } from './constants'
+
+const defaultValues: CreateFirstGroup = {
+  name: '',
+  days: [],
+  time: '09:00',
+  capacity: 1,
+  price: 0,
+  billingType: 'MONTHLY',
+  dueDay: 1,
+}
+
+type FirstGroupStepProps = {
+  onBack: () => void
+  onCompleted: (group: OnboardingGroupDto) => void
+}
+
+export function FirstGroupStep({ onBack, onCompleted }: FirstGroupStepProps) {
+  const {
+    register,
+    handleSubmit,
+    watch,
+    setValue,
+    formState: { errors },
+  } = useForm<CreateFirstGroup>({
+    resolver: zodResolver(CreateFirstGroupSchema),
+    defaultValues,
+    mode: 'onTouched',
+  })
+
+  const days = watch('days')
+  const billingType = watch('billingType')
+  const dueDay = watch('dueDay')
+
+  const create = useMutation({
+    mutationFn: (values: CreateFirstGroup) => createFirstGroup(values),
+    onSuccess: (result) => onCompleted(result.group),
+  })
+
+  const toggleDay = (day: WeekDay) => {
+    const next = days.includes(day) ? days.filter((d) => d !== day) : [...days, day]
+    setValue('days', next, { shouldValidate: true })
+  }
+
+  const selectBillingType = (type: BillingType) => {
+    setValue('billingType', type, { shouldValidate: true })
+  }
+
+  return (
+    <form onSubmit={handleSubmit((values) => create.mutate(values))} noValidate className="space-y-5">
+      <header className="space-y-1">
+        <h2 className="text-2xl font-bold text-primary">Tu primer grupo</h2>
+        <p className="text-sm text-foreground/60">
+          Definí los datos de la clase que vas a cobrar. Después siempre podés editarlos.
+        </p>
+      </header>
+
+      <div>
+        <Label htmlFor="name">Nombre del grupo</Label>
+        <Input
+          id="name"
+          placeholder="Ej: Yoga Vinyasa · Nivel 1"
+          invalid={!!errors.name}
+          {...register('name')}
+        />
+        {errors.name ? <p className="mt-1 text-sm text-danger">{errors.name.message}</p> : null}
+      </div>
+
+      <div>
+        <Label>Días de clase</Label>
+        <div className="flex flex-wrap gap-2">
+          {WEEK_DAY_CHIPS.map(({ value, label }) => {
+            const isActive = days.includes(value)
+            return (
+              <button
+                key={value}
+                type="button"
+                aria-pressed={isActive}
+                onClick={() => toggleDay(value)}
+                className={cn(
+                  'h-9 rounded-full border px-3.5 text-sm font-medium transition-colors',
+                  isActive
+                    ? 'border-accent bg-accent text-white'
+                    : 'border-border bg-white text-primary hover:bg-primary-soft',
+                )}
+              >
+                {label}
+              </button>
+            )
+          })}
+        </div>
+        {errors.days ? <p className="mt-1 text-sm text-danger">{errors.days.message}</p> : null}
+      </div>
+
+      <div>
+        <Label htmlFor="time">Horario</Label>
+        <Input
+          id="time"
+          type="time"
+          invalid={!!errors.time}
+          {...register('time')}
+        />
+        {errors.time ? <p className="mt-1 text-sm text-danger">{errors.time.message}</p> : null}
+      </div>
+
+      <div className="grid grid-cols-2 gap-3">
+        <div>
+          <Label htmlFor="capacity">Cupo máximo</Label>
+          <Input
+            id="capacity"
+            type="number"
+            inputMode="numeric"
+            min={1}
+            step={1}
+            invalid={!!errors.capacity}
+            {...register('capacity', { valueAsNumber: true })}
+          />
+          {errors.capacity ? (
+            <p className="mt-1 text-sm text-danger">{errors.capacity.message}</p>
+          ) : null}
+        </div>
+
+        <div>
+          <Label htmlFor="price">Precio</Label>
+          <div className="relative">
+            <span className="pointer-events-none absolute inset-y-0 left-3 flex items-center text-sm text-foreground/50">
+              $
+            </span>
+            <Input
+              id="price"
+              type="number"
+              inputMode="decimal"
+              min={0}
+              step="0.01"
+              placeholder="0.00"
+              className="pl-7"
+              invalid={!!errors.price}
+              {...register('price', { valueAsNumber: true })}
+            />
+          </div>
+          {errors.price ? (
+            <p className="mt-1 text-sm text-danger">{errors.price.message}</p>
+          ) : null}
+        </div>
+      </div>
+
+      <div>
+        <Label>Tipo de cobro</Label>
+        <div className="grid grid-cols-2 gap-2">
+          {BILLING_TYPES.map(({ value, label, hint }) => {
+            const isActive = billingType === value
+            return (
+              <button
+                key={value}
+                type="button"
+                aria-pressed={isActive}
+                onClick={() => selectBillingType(value)}
+                className={cn(
+                  'rounded-xl border px-3 py-2.5 text-left transition-colors',
+                  isActive
+                    ? 'border-accent bg-accent-soft'
+                    : 'border-border bg-white hover:bg-primary-soft',
+                )}
+              >
+                <span
+                  className={cn(
+                    'block text-sm font-semibold',
+                    isActive ? 'text-accent' : 'text-primary',
+                  )}
+                >
+                  {label}
+                </span>
+                <span className="block text-xs text-foreground/50">{hint}</span>
+              </button>
+            )
+          })}
+        </div>
+      </div>
+
+      <div>
+        <Label htmlFor="dueDay">Día de vencimiento</Label>
+        <Input
+          id="dueDay"
+          type="number"
+          inputMode="numeric"
+          min={1}
+          max={28}
+          step={1}
+          invalid={!!errors.dueDay}
+          {...register('dueDay', { valueAsNumber: true })}
+        />
+        <p className="mt-1 text-xs text-foreground/50">
+          Los cobros vencerán el día {isFinite(dueDay) && dueDay ? dueDay : '1'} de cada mes.
+        </p>
+        {errors.dueDay ? (
+          <p className="mt-1 text-sm text-danger">{errors.dueDay.message}</p>
+        ) : null}
+      </div>
+
+      {create.isError ? (
+        <p className="rounded-xl bg-danger-soft px-4 py-3 text-sm text-danger">
+          No pudimos crear el grupo. Revisá los datos e intentá de nuevo.
+        </p>
+      ) : null}
+
+      <div className="flex items-center gap-3">
+        <Button variant="outline" onClick={onBack} disabled={create.isPending}>
+          <ArrowLeft className="size-4" />
+          Volver
+        </Button>
+        <Button
+          type="submit"
+          variant="primary"
+          className="flex-1"
+          disabled={create.isPending}
+        >
+          {create.isPending ? (
+            <Loader2 className="size-4 animate-spin" />
+          ) : (
+            <Check className="size-4" />
+          )}
+          {create.isPending ? 'Creando…' : 'Crear grupo'}
+        </Button>
+      </div>
+    </form>
+  )
+}

apps/web/src/components/onboarding/PaymentStep.tsx

@@ -0,0 +1,171 @@
+import { useState } from 'react'
+import { useMutation } from '@tanstack/react-query'
+import type { ConnectPaymentResult, PaymentProvider } from '@gruperly/shared'
+import {
+  ArrowLeft,
+  ArrowRight,
+  BadgeCheck,
+  Check,
+  CheckCircle2,
+  CreditCard,
+  Loader2,
+  ShieldCheck,
+} from 'lucide-react'
+import { connectPayment } from '../../lib/api'
+import { cn } from '../../lib/utils'
+import { Badge, Button } from '../ui'
+import { PAYMENT_PROVIDERS } from './constants'
+
+type PaymentStepProps = {
+  initialResult: ConnectPaymentResult | null
+  onConnected: (result: ConnectPaymentResult) => void
+  onBack: () => void
+}
+
+export function PaymentStep({ initialResult, onConnected, onBack }: PaymentStepProps) {
+  const [selected, setSelected] = useState<PaymentProvider>('MERCADO_PAGO')
+  const [connected, setConnected] = useState<ConnectPaymentResult | null>(initialResult)
+
+  const connect = useMutation({
+    mutationFn: () => connectPayment({ provider: selected, sandbox: true }),
+    onSuccess: (result) => {
+      setConnected(result)
+      onConnected(result)
+    },
+  })
+
+  if (connected) {
+    return (
+      <section className="space-y-6">
+        <header className="space-y-1">
+          <h2 className="text-2xl font-bold text-primary">Tu cobro está conectado</h2>
+          <p className="text-sm text-foreground/60">
+            Ya podés dejar listo tu primer grupo para cobrar con{' '}
+            {PAYMENT_PROVIDERS.find((p) => p.value === connected.provider)?.name ?? ''}.
+          </p>
+        </header>
+
+        <div className="rounded-xl border border-success/30 bg-success-soft p-5 text-center">
+          <span className="mx-auto flex size-12 items-center justify-center rounded-full bg-white">
+            <CheckCircle2 className="size-6 text-success" />
+          </span>
+          <p className="mt-3 text-sm font-semibold text-success">Cuenta conectada</p>
+          <div className="mt-1 flex items-center justify-center gap-2">
+            <span className="text-sm font-medium text-primary">
+              {PAYMENT_PROVIDERS.find((p) => p.value === connected.provider)?.name}
+            </span>
+            <Badge variant="success">Modo prueba</Badge>
+          </div>
+        </div>
+
+        <div className="flex items-center gap-3">
+          <Button variant="outline" onClick={() => setConnected(null)}>
+            <ArrowLeft className="size-4" />
+            Cambiar
+          </Button>
+          <Button
+            variant="primary"
+            className="flex-1"
+            onClick={() => onConnected(connected)}
+          >
+            Continuar
+            <ArrowRight className="size-4" />
+          </Button>
+        </div>
+      </section>
+    )
+  }
+
+  return (
+    <section className="space-y-5">
+      <header className="space-y-1">
+        <h2 className="text-2xl font-bold text-primary">Elegí tu procesador de cobro</h2>
+        <p className="text-sm text-foreground/60">
+          Los pagos de tus alumnos van a llegar por esta plataforma.
+        </p>
+      </header>
+
+      <div role="radiogroup" aria-label="Procesador de pago" className="space-y-3">
+        {PAYMENT_PROVIDERS.map((provider) => {
+          const isSelected = selected === provider.value
+          return (
+            <button
+              key={provider.value}
+              type="button"
+              role="radio"
+              aria-checked={isSelected}
+              onClick={() => setSelected(provider.value)}
+              className={cn(
+                'flex w-full items-center gap-3 rounded-xl border bg-white p-4 text-left transition-colors',
+                isSelected
+                  ? 'border-accent ring-2 ring-accent/20'
+                  : 'border-border hover:bg-primary-soft',
+              )}
+            >
+              <span
+                className={cn(
+                  'rounded-lg p-2',
+                  isSelected ? 'bg-accent-soft' : 'bg-primary-soft',
+                )}
+              >
+                <CreditCard
+                  className={cn('size-5', isSelected ? 'text-accent' : 'text-primary/40')}
+                />
+              </span>
+              <span className="min-w-0 flex-1">
+                <span className="block text-sm font-semibold text-primary">
+                  {provider.name}
+                </span>
+                <span className="block text-xs text-foreground/60">
+                  {provider.description}
+                </span>
+              </span>
+              <span
+                className={cn(
+                  'flex size-5 shrink-0 items-center justify-center rounded-full border transition-colors',
+                  isSelected ? 'border-accent bg-accent text-white' : 'border-border',
+                )}
+              >
+                {isSelected ? <Check className="size-3" strokeWidth={3} /> : null}
+              </span>
+            </button>
+          )
+        })}
+      </div>
+
+      <div className="flex items-start gap-2 rounded-xl bg-warning-soft px-4 py-3">
+        <ShieldCheck className="mt-0.5 size-4 shrink-0 text-warning" />
+        <p className="text-xs text-warning">
+          Por ahora la conexión se hace en modo prueba (sandbox). Más adelante vas a poder
+          vincular tu cuenta real de {selected === 'STRIPE' ? 'Stripe' : 'Mercado Pago'}.
+        </p>
+      </div>
+
+      {connect.isError ? (
+        <p className="rounded-xl bg-danger-soft px-4 py-3 text-sm text-danger">
+          No pudimos conectar la cuenta. Intentalo de nuevo.
+        </p>
+      ) : null}
+
+      <div className="flex items-center gap-3">
+        <Button variant="outline" onClick={onBack}>
+          <ArrowLeft className="size-4" />
+          Volver
+        </Button>
+        <Button
+          variant="primary"
+          className="flex-1"
+          disabled={connect.isPending}
+          onClick={() => connect.mutate()}
+        >
+          {connect.isPending ? (
+            <Loader2 className="size-4 animate-spin" />
+          ) : (
+            <BadgeCheck className="size-4" />
+          )}
+          {connect.isPending ? 'Conectando…' : 'Conectar cuenta'}
+        </Button>
+      </div>
+    </section>
+  )
+}

apps/web/src/components/onboarding/Stepper.tsx

@@ -0,0 +1,59 @@
+import { Check } from 'lucide-react'
+import { cn } from '../../lib/utils'
+
+export type StepperProps = {
+  steps: readonly { label: string }[]
+  current: number
+}
+
+export function Stepper({ steps, current }: StepperProps) {
+  return (
+    <ol aria-label="Progreso del alta" className="flex items-center">
+      {steps.map((step, index) => {
+        const isDone = index < current
+        const isActive = index === current
+
+        return (
+          <li
+            key={step.label}
+            className={cn('flex items-center', index < steps.length - 1 ? 'flex-1' : '')}
+          >
+            <div className="flex flex-col items-center gap-1.5">
+              <span
+                className={cn(
+                  'flex size-8 items-center justify-center rounded-full border text-sm font-semibold transition-colors',
+                  isDone && 'border-accent bg-accent text-white',
+                  isActive && 'border-accent text-accent ring-4 ring-accent/15',
+                  !isDone && !isActive && 'border-border text-foreground/40',
+                )}
+              >
+                {isDone ? (
+                  <Check className="size-4" strokeWidth={3} />
+                ) : (
+                  <span>{index + 1}</span>
+                )}
+              </span>
+              <span
+                className={cn(
+                  'hidden text-xs font-medium sm:block',
+                  isActive ? 'text-accent' : 'text-foreground/50',
+                )}
+              >
+                {step.label}
+              </span>
+            </div>
+
+            {index < steps.length - 1 ? (
+              <span
+                className={cn(
+                  'mx-2 mb-0 h-px flex-1 rounded-full transition-colors sm:mb-4',
+                  isDone ? 'bg-accent' : 'bg-border',
+                )}
+              />
+            ) : null}
+          </li>
+        )
+      })}
+    </ol>
+  )
+}

apps/web/src/components/onboarding/WelcomeStep.tsx

@@ -0,0 +1,63 @@
+import { ArrowRight, Rocket, Users, Wallet } from 'lucide-react'
+import { Button } from '../ui'
+
+type WelcomeStepProps = {
+  name: string
+  onNext: () => void
+}
+
+const STEPS_TO_SETUP = [
+  {
+    icon: Wallet,
+    title: 'Conectá tu cuenta de cobro',
+    description: 'Mercado Pago o Stripe, en modo prueba por ahora.',
+  },
+  {
+    icon: Users,
+    title: 'Creá tu primer grupo',
+    description: 'Días, horario, precio y cupo de tu clase.',
+  },
+  {
+    icon: Rocket,
+    title: 'Empezá a cobrar',
+    description: 'Todo listo para sumar alumnos y cobrar al instante.',
+  },
+]
+
+export function WelcomeStep({ name, onNext }: WelcomeStepProps) {
+  return (
+    <section className="space-y-6">
+      <header className="space-y-2 text-center">
+        <span className="mx-auto flex size-14 items-center justify-center rounded-2xl bg-accent-soft">
+          <Rocket className="size-7 text-accent" />
+        </span>
+        <h1 className="text-2xl font-bold text-primary">¡Hola, {name}!</h1>
+        <p className="text-sm text-foreground/60">
+          Vamos a configurar tu cuenta en 3 pasos. Vas a tardar menos de 5 minutos.
+        </p>
+      </header>
+
+      <ol className="space-y-3">
+        {STEPS_TO_SETUP.map(({ icon: Icon, title, description }) => (
+          <li
+            key={title}
+            className="flex items-center gap-3 rounded-xl border border-border bg-white p-4"
+          >
+            <span className="rounded-lg bg-accent-soft p-2">
+              <Icon className="size-5 text-accent" />
+            </span>
+            <div>
+              <p className="text-sm font-semibold text-primary">{title}</p>
+              <p className="text-xs text-foreground/60">{description}</p>
+            </div>
+          </li>
+        ))}
+      </ol>
+
+      <Button variant="primary" size="md" className="w-full" onClick={onNext}>
+        Comenzar
+        <ArrowRight className="size-4" />
+      </Button>
+    </section>
+  )
+}

apps/web/src/components/onboarding/constants.ts

@@ -0,0 +1,44 @@
+import type { BillingType, PaymentProvider, WeekDay } from '@gruperly/shared'
+export { BILLING_LABELS, WEEK_DAY_FULL_LABELS, formatPrice, formatSchedule } from '../../lib/format'
+
+export const WEEK_DAYS: readonly WeekDay[] = [
+  'MONDAY',
+  'TUESDAY',
+  'WEDNESDAY',
+  'THURSDAY',
+  'FRIDAY',
+  'SATURDAY',
+  'SUNDAY',
+]
+
+export const WEEK_DAY_CHIPS: readonly { value: WeekDay; label: string }[] = [
+  { value: 'MONDAY', label: 'Lun' },
+  { value: 'TUESDAY', label: 'Mar' },
+  { value: 'WEDNESDAY', label: 'Mié' },
+  { value: 'THURSDAY', label: 'Jue' },
+  { value: 'FRIDAY', label: 'Vie' },
+  { value: 'SATURDAY', label: 'Sáb' },
+  { value: 'SUNDAY', label: 'Dom' },
+]
+
+export const PAYMENT_PROVIDERS: readonly {
+  value: PaymentProvider
+  name: string
+  description: string
+}[] = [
+  {
+    value: 'MERCADO_PAGO',
+    name: 'Mercado Pago',
+    description: 'El procesador más usado en Latinoamérica',
+  },
+  {
+    value: 'STRIPE',
+    name: 'Stripe',
+    description: 'Cobrá con tarjetas e internacionalmente',
+  },
+]
+
+export const BILLING_TYPES: readonly { value: BillingType; label: string; hint: string }[] = [
+  { value: 'MONTHLY', label: 'Mensual', hint: 'Un cobro por mes' },
+  { value: 'PER_CLASS', label: 'Por clase', hint: 'Cada clase que asista' },
+]

apps/web/src/components/onboarding/index.ts

@@ -0,0 +1,5 @@
+export { Stepper, type StepperProps } from './Stepper'
+export { WelcomeStep } from './WelcomeStep'
+export { PaymentStep } from './PaymentStep'
+export { FirstGroupStep } from './FirstGroupStep'
+export { ConfirmationStep } from './ConfirmationStep'

apps/web/src/index.css

@@ -22,15 +22,23 @@
   /* Border radius por defecto */
   --radius-xl: 0.75rem;
 
-  /* Animaciones */
+/* Animaciones */
   --animate-fade-in: fade-in 0.2s ease-out;
+  --animate-step-enter: step-enter 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
 
   @keyframes fade-in {
+    from { opacity: 0; }
+    to { opacity: 1; }
+  }
+
+  @keyframes step-enter {
     from {
       opacity: 0;
+      transform: translateX(1.5rem);
     }
     to {
       opacity: 1;
+      transform: translateX(0);
     }
   }
 }

apps/web/src/lib/api.ts

@@ -0,0 +1,65 @@
+import type {
+  ConnectPayment,
+  ConnectPaymentResult,
+  CreateFirstGroup,
+  CreateFirstGroupResult,
+  GroupList,
+  OnboardingStatusDto,
+  ProblemDetails,
+} from '@gruperly/shared'
+
+const API_URL = import.meta.env.VITE_API_URL ?? 'http://localhost:4000'
+
+export class ApiError extends Error {
+  constructor(
+    readonly status: number,
+    readonly problem: ProblemDetails | null,
+  ) {
+    super(problem?.title ?? `Error ${status}`)
+    this.name = 'ApiError'
+  }
+}
+
+type JsonBody = Record<string, unknown> | unknown[]
+
+async function apiFetch<T>(path: string, init?: RequestInit): Promise<T> {
+  const headers = new Headers(init?.headers)
+  headers.set('Content-Type', 'application/json')
+
+  const res = await fetch(`${API_URL}${path}`, {
+    ...init,
+    headers,
+    credentials: 'include',
+  })
+
+  if (!res.ok) {
+    let problem: ProblemDetails | null = null
+    try {
+      const body = (await res.json()) as Partial<ProblemDetails>
+      if (body && typeof body === 'object' && typeof body.title === 'string') {
+        problem = body as ProblemDetails
+      }
+    } catch {
+      // Sin cuerpo JSON: usamos el error genérico.
+    }
+    throw new ApiError(res.status, problem)
+  }
+
+  return (await res.json()) as T
+}
+
+export const getOnboardingStatus = () => apiFetch<OnboardingStatusDto>('/api/v1/onboarding/status')
+
+export const connectPayment = (payload: ConnectPayment) =>
+  apiFetch<ConnectPaymentResult>('/api/v1/onboarding/payment-setup', {
+    method: 'POST',
+    body: JSON.stringify(payload),
+  })
+
+export const createFirstGroup = (payload: CreateFirstGroup) =>
+  apiFetch<CreateFirstGroupResult>('/api/v1/onboarding/first-group', {
+    method: 'POST',
+    body: JSON.stringify(payload),
+  })
+
+export const getGroups = () => apiFetch<GroupList>('/api/v1/groups')

apps/web/src/lib/format.ts

@@ -0,0 +1,26 @@
+import type { BillingType, WeekDay } from '@gruperly/shared'
+
+export const WEEK_DAY_FULL_LABELS: Record<WeekDay, string> = {
+  MONDAY: 'Lunes',
+  TUESDAY: 'Martes',
+  WEDNESDAY: 'Miércoles',
+  THURSDAY: 'Jueves',
+  FRIDAY: 'Viernes',
+  SATURDAY: 'Sábado',
+  SUNDAY: 'Domingo',
+}
+
+export const BILLING_LABELS: Record<BillingType, string> = {
+  MONTHLY: 'Mensual',
+  PER_CLASS: 'Por clase',
+}
+
+export function formatSchedule(days: readonly WeekDay[], time: string | null): string {
+  const dayNames = days.map((day) => WEEK_DAY_FULL_LABELS[day])
+  return time ? `${dayNames.join(', ')} · ${time}` : dayNames.join(', ')
+}
+
+export function formatPrice(price: number | null): string {
+  if (price == null) return '—'
+  return price.toLocaleString('es-MX', { style: 'currency', currency: 'MXN' })
+}

apps/web/src/main.tsx

@@ -1,14 +1,23 @@
 import React from 'react'
 import ReactDOM from 'react-dom/client'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import { RouterProvider } from '@tanstack/react-router'
 import { router } from './router'
 import { AuthProvider } from './context/AuthProvider'
 import './index.css'
 
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: { staleTime: 30_000, retry: 1 },
+  },
+})
+
 ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>
-    <AuthProvider>
-      <RouterProvider router={router} />
-    </AuthProvider>
+    <QueryClientProvider client={queryClient}>
+      <AuthProvider>
+        <RouterProvider router={router} />
+      </AuthProvider>
+    </QueryClientProvider>
   </React.StrictMode>,
 )

apps/web/src/router.tsx

@@ -10,6 +10,7 @@ import { OrganizationsPage } from './routes/organizations'
 import { LoginPage } from './routes/auth/login'
 import { SignupPage } from './routes/auth/signup'
 import { VerifyEmailPage } from './routes/auth/verify-email'
+import { OnboardingView } from './routes/onboarding'
 
 const rootRoute = createRootRoute({
   component: () => <Outlet />,
@@ -33,6 +34,12 @@ const verifyEmailRoute = createRoute({
   component: VerifyEmailPage,
 })
 
+const onboardingRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: '/onboarding',
+  component: OnboardingView,
+})
+
 // Capa con la navegación de la app autenticada (Sidebar + BottomNav).
 const appLayoutRoute = createRoute({
   getParentRoute: () => rootRoute,
@@ -86,6 +93,7 @@ const routeTree = rootRoute.addChildren([
   loginRoute,
   signupRoute,
   verifyEmailRoute,
+  onboardingRoute,
   appLayoutRoute.addChildren([
     indexRoute,
     groupsRoute,

apps/web/src/routes/groups.tsx

@@ -1,8 +1,109 @@
-export function GroupsView() {
+import { useQuery } from '@tanstack/react-query'
+import { useNavigate } from '@tanstack/react-router'
+import { CalendarClock, Loader2, Plus, Users } from 'lucide-react'
+import type { GroupDto } from '@gruperly/shared'
+import { Badge, Button } from '../components/ui'
+import { getGroups } from '../lib/api'
+import { BILLING_LABELS, formatPrice, formatSchedule } from '../lib/format'
+
+function GroupCard({ group }: { group: GroupDto }) {
+  const hasSchedule = (group.days?.length ?? 0) > 0
+
   return (
-    <section>
-      <h1 className="text-2xl font-bold text-primary">Grupos</h1>
-      <p className="mt-2 text-sm text-foreground/60">Tus grupos de cobranza.</p>
-    </section>
+    <article className="rounded-xl border border-border bg-white p-5">
+      <div className="flex items-start justify-between gap-3">
+        <div className="min-w-0">
+          <h3 className="truncate text-base font-semibold text-primary">{group.name}</h3>
+          {group.description ? (
+            <p className="mt-0.5 truncate text-sm text-foreground/60">{group.description}</p>
+          ) : null}
+        </div>
+        <Badge variant="success">Activo</Badge>
+      </div>
+
+      {hasSchedule ? (
+        <dl className="mt-4 space-y-2 text-sm">
+          <div className="flex items-center gap-2 text-foreground/70">
+            <CalendarClock className="size-4 shrink-0 text-accent" />
+            <span>{formatSchedule(group.days ?? [], group.time)}</span>
+          </div>
+          <div className="flex items-center gap-2 text-foreground/70">
+            <Users className="size-4 shrink-0 text-accent" />
+            <span>
+              Cupo {group.capacity ?? '—'} alumnos
+              {group.price != null
+                ? ` · ${formatPrice(group.price)}${group.billingType ? ` · ${BILLING_LABELS[group.billingType]}` : ''}`
+                : ''}
+              {group.dueDay != null ? ` · vence el día ${group.dueDay}` : ''}
+            </span>
+          </div>
+        </dl>
+      ) : (
+        <p className="mt-4 text-sm text-foreground/50">Aún sin plan de cobro configurado.</p>
+      )}
+    </article>
   )
 }
+
+export function GroupsView() {
+  const navigate = useNavigate()
+  const groupsQuery = useQuery({
+    queryKey: ['groups'],
+    queryFn: getGroups,
+  })
+
+  return (
+    <section>
+      <div className="flex items-center justify-between gap-3">
+        <div>
+          <h1 className="text-2xl font-bold text-primary">Grupos</h1>
+          <p className="mt-2 text-sm text-foreground/60">Tus grupos de cobranza.</p>
+        </div>
+        <Button variant="primary" onClick={() => void navigate({ to: '/onboarding' })}>
+          <Plus className="size-4" />
+          Crear
+        </Button>
+      </div>
+
+      {groupsQuery.isPending ? (
+        <div className="mt-8 flex items-center justify-center py-16">
+          <Loader2 className="size-6 animate-spin text-foreground/40" />
+        </div>
+      ) : null}
+
+      {groupsQuery.isError ? (
+        <div className="mt-8 space-y-3 rounded-xl bg-danger-soft px-4 py-3 text-sm text-danger">
+          <p>No pudimos cargar tus grupos.</p>
+          <Button variant="outline" size="sm" onClick={() => void groupsQuery.refetch()}>
+            Reintentar
+          </Button>
+        </div>
+      ) : null}
+
+      {groupsQuery.isSuccess && groupsQuery.data.data.length === 0 ? (
+        <div className="mt-8 rounded-xl border border-dashed border-border bg-white px-4 py-12 text-center">
+          <p className="font-medium text-primary">Todavía no tenés grupos</p>
+          <p className="mt-1 text-sm text-foreground/60">
+            Crea tu primer grupo para empezar a cobrar.
+          </p>
+          <Button
+            variant="primary"
+            className="mt-5"
+            onClick={() => void navigate({ to: '/onboarding' })}
+          >
+            <Plus className="size-4" />
+            Crear tu primer grupo
+          </Button>
+        </div>
+      ) : null}
+
+      {groupsQuery.isSuccess && groupsQuery.data.data.length > 0 ? (
+        <div className="mt-6 grid gap-4">
+          {groupsQuery.data.data.map((group) => (
+            <GroupCard key={group.id} group={group} />
+          ))}
+        </div>
+      ) : null}
+    </section>
+  )
+}

apps/web/src/routes/onboarding.tsx

@@ -0,0 +1,131 @@
+import { useEffect, useState } from 'react'
+import { useQuery } from '@tanstack/react-query'
+import { useNavigate } from '@tanstack/react-router'
+import { Loader2 } from 'lucide-react'
+import type { ConnectPaymentResult, OnboardingGroupDto } from '@gruperly/shared'
+import { Logo, LogoIcon } from '../components/brand'
+import {
+  ConfirmationStep,
+  FirstGroupStep,
+  PaymentStep,
+  Stepper,
+  WelcomeStep,
+} from '../components/onboarding'
+import { PAYMENT_PROVIDERS } from '../components/onboarding/constants'
+import { Button } from '../components/ui'
+import { useAuth } from '../context/AuthProvider'
+import { getOnboardingStatus } from '../lib/api'
+
+const STEPS = [
+  { label: 'Bienvenida' },
+  { label: 'Cobros' },
+  { label: 'Tu grupo' },
+  { label: 'Listo' },
+]
+
+export function OnboardingView() {
+  const { user, isPending: authPending } = useAuth()
+  const navigate = useNavigate()
+
+  const [step, setStep] = useState(0)
+  const [paymentResult, setPaymentResult] = useState<ConnectPaymentResult | null>(null)
+  const [createdGroup, setCreatedGroup] = useState<OnboardingGroupDto | null>(null)
+
+  const statusQuery = useQuery({
+    queryKey: ['onboarding', 'status'],
+    queryFn: getOnboardingStatus,
+    enabled: !!user,
+  })
+
+  useEffect(() => {
+    const status = statusQuery.data
+    if (!status) return
+    if (status.completed) {
+      void navigate({ to: '/' })
+      return
+    }
+    // Si interrumpió después de conectar el cobro, retomamos en el paso del grupo.
+    if (status.step === 'PAYMENT_CONNECTED') {
+      setStep((current) => (current === 0 ? 2 : current))
+    }
+  }, [statusQuery.data, navigate])
+
+  if (authPending) {
+    return (
+      <div className="flex min-h-dvh items-center justify-center">
+        <Loader2 className="size-6 animate-spin text-foreground/40" />
+      </div>
+    )
+  }
+
+  if (!user) {
+    return (
+      <div className="flex min-h-dvh items-center justify-center px-4">
+        <div className="w-full max-w-sm space-y-4 text-center">
+          <span className="mx-auto flex size-14 items-center justify-center rounded-2xl bg-accent-soft">
+            <LogoIcon className="size-8 text-accent" />
+          </span>
+          <h1 className="text-2xl font-bold text-primary">Tu cuenta, lista</h1>
+          <p className="text-sm text-foreground/60">
+            Iniciá sesión para configurar tus cobros y crear tu primer grupo.
+          </p>
+          <Button variant="primary" className="w-full" onClick={() => void navigate({ to: '/login' })}>
+            Iniciar sesión
+          </Button>
+        </div>
+      </div>
+    )
+  }
+
+  if (statusQuery.isPending) {
+    return (
+      <div className="flex min-h-dvh items-center justify-center">
+        <Loader2 className="size-6 animate-spin text-foreground/40" />
+      </div>
+    )
+  }
+
+  const firstName = user.name?.trim().split(/\s+/)[0] ?? 'profesor/a'
+  const providerName = paymentResult
+    ? PAYMENT_PROVIDERS.find((p) => p.value === paymentResult.provider)?.name
+    : undefined
+
+  return (
+    <main className="mx-auto flex min-h-dvh w-full max-w-md flex-col px-4 pb-12 pt-8 sm:pt-12">
+      <header className="mb-6 flex items-center justify-center gap-2">
+        <LogoIcon className="size-7" />
+        <Logo className="text-xl" />
+      </header>
+
+      <Stepper steps={STEPS} current={step} />
+
+      <div key={step} className="mt-8 animate-step-enter">
+        {step === 0 ? (
+          <WelcomeStep name={firstName} onNext={() => setStep(1)} />
+        ) : null}
+        {step === 1 ? (
+          <PaymentStep
+            initialResult={paymentResult}
+            onConnected={(result) => {
+              setPaymentResult(result)
+              setStep(2)
+            }}
+            onBack={() => setStep(0)}
+          />
+        ) : null}
+        {step === 2 ? (
+          <FirstGroupStep
+            onBack={() => setStep(1)}
+            onCompleted={(group) => {
+              setCreatedGroup(group)
+              setStep(3)
+            }}
+          />
+        ) : null}
+        {step === 3 && createdGroup ? (
+          <ConfirmationStep group={createdGroup} providerName={providerName} />
+        ) : null}
+      </div>
+    </main>
+  )
+}

packages/shared/src/index.ts

@@ -1,7 +1,9 @@
 export * from './lib/problem-details.js';
 export * from './lib/result.js';
+export * from './schemas/enums.js';
 export * from './schemas/groups.js';
 export * from './schemas/health-check.js';
+export * from './schemas/onboarding.js';
 export * from './schemas/pagination.js';
 export * from './schemas/payments.js';
 export * from './schemas/problem-details.js';

packages/shared/src/schemas/enums.ts

@@ -0,0 +1,21 @@
+import { z } from 'zod';
+
+// Días de la semana en que se dictan las clases.
+export const weekdaySchema = z.enum([
+  'MONDAY',
+  'TUESDAY',
+  'WEDNESDAY',
+  'THURSDAY',
+  'FRIDAY',
+  'SATURDAY',
+  'SUNDAY',
+]);
+export type WeekDay = z.output<typeof weekdaySchema>;
+
+// Procesadores de pago soportados.
+export const paymentProviderSchema = z.enum(['MERCADO_PAGO', 'STRIPE']);
+export type PaymentProvider = z.output<typeof paymentProviderSchema>;
+
+// Frecuencia de cobro de un grupo.
+export const billingTypeSchema = z.enum(['MONTHLY', 'PER_CLASS']);
+export type BillingType = z.output<typeof billingTypeSchema>;

packages/shared/src/schemas/groups.ts

@@ -1,4 +1,5 @@
 import { z } from 'zod';
+import { billingTypeSchema, weekdaySchema } from './enums.js';
 import { createPageSchema, createPageSizeSchema, createPaginationSchema } from './pagination.js';
 
 const isoDateTimeSchema = z.string().datetime();
@@ -13,6 +14,13 @@ export const GroupDtoSchema = z.object({
   createdById: z.string(),
   createdAt: isoDateTimeSchema,
   updatedAt: isoDateTimeSchema,
+  // Horario y cobro: quedan vacíos si el grupo aún no tiene configurado el plan.
+  days: z.array(weekdaySchema).nullable(),
+  time: z.string().nullable(),
+  capacity: z.number().int().min(1).nullable(),
+  price: z.number().min(0).nullable(),
+  billingType: billingTypeSchema.nullable(),
+  dueDay: z.number().int().min(1).max(28).nullable(),
 });
 export type GroupDto = z.output<typeof GroupDtoSchema>;
 

packages/shared/src/schemas/onboarding.ts

@@ -0,0 +1,76 @@
+import { z } from 'zod';
+import { billingTypeSchema, paymentProviderSchema, weekdaySchema } from './enums.js';
+import { GroupDtoSchema } from './groups.js';
+
+export type { BillingType, PaymentProvider, WeekDay } from './enums.js';
+export { billingTypeSchema, paymentProviderSchema, weekdaySchema } from './enums.js';
+
+// Paso 2: vincula la cuenta de cobro del profesor.
+export const ConnectPaymentSchema = z.strictObject({
+  provider: paymentProviderSchema,
+  // Para el MVP se conecta en modo simulación / sandbox.
+  sandbox: z.boolean().default(true),
+  accessToken: z.string().optional(),
+});
+export type ConnectPayment = z.output<typeof ConnectPaymentSchema>;
+
+export const ConnectPaymentResultSchema = z.object({
+  provider: paymentProviderSchema,
+  sandbox: z.boolean(),
+  connected: z.boolean(),
+});
+export type ConnectPaymentResult = z.output<typeof ConnectPaymentResultSchema>;
+
+// Paso 3: crea el primer grupo del profesor.
+export const CreateFirstGroupSchema = z.strictObject({
+  name: z
+    .string()
+    .trim()
+    .min(3, 'El nombre debe tener al menos 3 caracteres')
+    .max(60, 'El nombre es demasiado largo (máximo 60 caracteres)'),
+  days: z.array(weekdaySchema).min(1, 'Elegí al menos un día de clase'),
+  time: z
+    .string()
+    .regex(/^([01]?\d|2[0-3]):[0-5]\d$/, 'Elegí un horario válido (ej: 09:00)'),
+  capacity: z
+    .number({ invalid_type_error: 'Ingresá un cupo válido' })
+    .int({ message: 'El cupo debe ser un número entero' })
+    .min(1, 'El cupo debe ser al menos 1'),
+  price: z
+    .number({ invalid_type_error: 'Ingresá un precio válido' })
+    .min(0, 'El precio no puede ser negativo'),
+  billingType: billingTypeSchema,
+  dueDay: z
+    .number({ invalid_type_error: 'Ingresá un día válido' })
+    .int({ message: 'El día debe ser un número entero' })
+    .min(1, 'El día de vencimiento debe estar entre 1 y 28')
+    .max(28, 'El día de vencimiento debe estar entre 1 y 28'),
+});
+export type CreateFirstGroup = z.output<typeof CreateFirstGroupSchema>;
+
+export const OnboardingGroupDtoSchema = GroupDtoSchema.extend({
+  days: z.array(weekdaySchema).nullable(),
+  time: z.string().nullable(),
+  capacity: z.number().int().min(1).nullable(),
+  price: z.number().min(0).nullable(),
+  billingType: billingTypeSchema.nullable(),
+  dueDay: z.number().int().min(1).max(28).nullable(),
+});
+export type OnboardingGroupDto = z.output<typeof OnboardingGroupDtoSchema>;
+
+export const CreateFirstGroupResultSchema = z.object({
+  group: OnboardingGroupDtoSchema,
+  onboardingCompleted: z.boolean(),
+});
+export type CreateFirstGroupResult = z.output<typeof CreateFirstGroupResultSchema>;
+
+// Estado del onboarding para retomar el flujo si se interrumpió.
+export const onboardingStepSchema = z.enum(['NOT_STARTED', 'PAYMENT_CONNECTED', 'COMPLETED']);
+export type OnboardingStep = z.output<typeof onboardingStepSchema>;
+
+export const OnboardingStatusDtoSchema = z.object({
+  step: onboardingStepSchema,
+  paymentConnected: z.boolean(),
+  completed: z.boolean(),
+});
+export type OnboardingStatusDto = z.output<typeof OnboardingStatusDtoSchema>;