diff --git a/marketplace/src/services/adminService.test.ts b/marketplace/src/services/adminService.test.ts
new file mode 100644
index 0000000..54fa4a1
--- /dev/null
+++ b/marketplace/src/services/adminService.test.ts
@@ -0,0 +1,208 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { adminService } from './adminService'
+import { apiClient } from './apiClient'
+
+// Mock apiClient
+vi.mock('./apiClient', () => ({
+    apiClient: {
+        get: vi.fn(),
+        post: vi.fn(),
+        put: vi.fn(),
+        patch: vi.fn(),
+        delete: vi.fn(),
+    }
+}))
+
+describe('adminService', () => {
+    beforeEach(() => {
+        vi.clearAllMocks()
+    })
+
+    describe('Users', () => {
+        it('listUsers should call correct endpoint with pagination', async () => {
+            const mockResponse = { users: [], total: 0, page: 1, page_size: 10 }
+            vi.mocked(apiClient.get).mockResolvedValue(mockResponse)
+
+            const result = await adminService.listUsers(1, 10)
+
+            expect(apiClient.get).toHaveBeenCalledWith('/v1/users?page=1&page_size=10')
+            expect(result).toEqual(mockResponse)
+        })
+
+        it('getUser should call correct endpoint with id', async () => {
+            const mockUser = { id: 'abc123', name: 'Test User' }
+            vi.mocked(apiClient.get).mockResolvedValue(mockUser)
+
+            const result = await adminService.getUser('abc123')
+
+            expect(apiClient.get).toHaveBeenCalledWith('/v1/users/abc123')
+            expect(result).toEqual(mockUser)
+        })
+
+        it('createUser should POST user data', async () => {
+            const userData = {
+                company_id: 'comp1',
+                role: 'Colaborador',
+                name: 'New User',
+                username: 'newuser',
+                email: 'new@test.com',
+                password: '123456'
+            }
+            const mockResponse = { id: 'new123', ...userData }
+            vi.mocked(apiClient.post).mockResolvedValue(mockResponse)
+
+            const result = await adminService.createUser(userData)
+
+            expect(apiClient.post).toHaveBeenCalledWith('/v1/users', userData)
+            expect(result).toEqual(mockResponse)
+        })
+
+        it('updateUser should PUT user data with id', async () => {
+            const updateData = { name: 'Updated Name' }
+            const mockResponse = { id: 'abc123', name: 'Updated Name' }
+            vi.mocked(apiClient.put).mockResolvedValue(mockResponse)
+
+            const result = await adminService.updateUser('abc123', updateData)
+
+            expect(apiClient.put).toHaveBeenCalledWith('/v1/users/abc123', updateData)
+            expect(result).toEqual(mockResponse)
+        })
+
+        it('deleteUser should DELETE user by id', async () => {
+            vi.mocked(apiClient.delete).mockResolvedValue({})
+
+            await adminService.deleteUser('abc123')
+
+            expect(apiClient.delete).toHaveBeenCalledWith('/v1/users/abc123')
+        })
+    })
+
+    describe('Companies', () => {
+        it('listCompanies should call correct endpoint', async () => {
+            const mockResponse = { tenants: [], total: 0, page: 1, page_size: 20 }
+            vi.mocked(apiClient.get).mockResolvedValue(mockResponse)
+
+            const result = await adminService.listCompanies(1, 20)
+
+            expect(apiClient.get).toHaveBeenCalledWith('/v1/companies?page=1&page_size=20')
+            expect(result).toEqual(mockResponse)
+        })
+
+        it('createCompany should POST company data', async () => {
+            const companyData = {
+                cnpj: '12345678000100',
+                corporate_name: 'Test Company',
+                category: 'farmacia',
+                license_number: 'LIC123',
+                latitude: -16.32,
+                longitude: -48.95,
+                city: 'Anápolis',
+                state: 'GO'
+            }
+            vi.mocked(apiClient.post).mockResolvedValue({ id: 'comp1', ...companyData })
+
+            await adminService.createCompany(companyData)
+
+            expect(apiClient.post).toHaveBeenCalledWith('/v1/companies', companyData)
+        })
+
+        it('updateCompany should PATCH company data', async () => {
+            const updateData = { corporate_name: 'Updated Name' }
+            vi.mocked(apiClient.patch).mockResolvedValue({ id: 'comp1', ...updateData })
+
+            await adminService.updateCompany('comp1', updateData)
+
+            expect(apiClient.patch).toHaveBeenCalledWith('/v1/companies/comp1', updateData)
+        })
+
+        it('verifyCompany should PATCH verify endpoint', async () => {
+            vi.mocked(apiClient.patch).mockResolvedValue({ id: 'comp1', is_verified: true })
+
+            await adminService.verifyCompany('comp1')
+
+            expect(apiClient.patch).toHaveBeenCalledWith('/v1/companies/comp1/verify', {})
+        })
+
+        it('deleteCompany should DELETE company by id', async () => {
+            vi.mocked(apiClient.delete).mockResolvedValue({})
+
+            await adminService.deleteCompany('comp1')
+
+            expect(apiClient.delete).toHaveBeenCalledWith('/v1/companies/comp1')
+        })
+    })
+
+    describe('Products', () => {
+        it('listProducts should call correct endpoint', async () => {
+            const mockResponse = { products: [], total: 0, page: 1, page_size: 20 }
+            vi.mocked(apiClient.get).mockResolvedValue(mockResponse)
+
+            const result = await adminService.listProducts(1, 20)
+
+            expect(apiClient.get).toHaveBeenCalledWith('/v1/products?page=1&page_size=20')
+            expect(result).toEqual(mockResponse)
+        })
+
+        it('createProduct should POST product data', async () => {
+            const productData = {
+                seller_id: 'seller1',
+                name: 'Dipirona 500mg',
+                description: 'Analgésico',
+                batch: 'L2024001',
+                expires_at: '2025-12-31',
+                price_cents: 1299,
+                stock: 100
+            }
+            vi.mocked(apiClient.post).mockResolvedValue({ id: 'prod1', ...productData })
+
+            await adminService.createProduct(productData)
+
+            expect(apiClient.post).toHaveBeenCalledWith('/v1/products', productData)
+        })
+
+        it('updateProduct should PATCH product data', async () => {
+            const updateData = { price_cents: 1599, stock: 50 }
+            vi.mocked(apiClient.patch).mockResolvedValue({ id: 'prod1', ...updateData })
+
+            await adminService.updateProduct('prod1', updateData)
+
+            expect(apiClient.patch).toHaveBeenCalledWith('/v1/products/prod1', updateData)
+        })
+
+        it('deleteProduct should DELETE product by id', async () => {
+            vi.mocked(apiClient.delete).mockResolvedValue({})
+
+            await adminService.deleteProduct('prod1')
+
+            expect(apiClient.delete).toHaveBeenCalledWith('/v1/products/prod1')
+        })
+    })
+
+    describe('Orders', () => {
+        it('listOrders should call correct endpoint', async () => {
+            const mockResponse = { orders: [], total: 0, page: 1, page_size: 20 }
+            vi.mocked(apiClient.get).mockResolvedValue(mockResponse)
+
+            const result = await adminService.listOrders(1, 20)
+
+            expect(apiClient.get).toHaveBeenCalledWith('/v1/orders?page=1&page_size=20')
+            expect(result).toEqual(mockResponse)
+        })
+
+        it('updateOrderStatus should PATCH status endpoint', async () => {
+            vi.mocked(apiClient.patch).mockResolvedValue({})
+
+            await adminService.updateOrderStatus('order1', 'Pago')
+
+            expect(apiClient.patch).toHaveBeenCalledWith('/v1/orders/order1/status', { status: 'Pago' })
+        })
+
+        it('deleteOrder should DELETE order by id', async () => {
+            vi.mocked(apiClient.delete).mockResolvedValue({})
+
+            await adminService.deleteOrder('order1')
+
+            expect(apiClient.delete).toHaveBeenCalledWith('/v1/orders/order1')
+        })
+    })
+})
diff --git a/marketplace/src/services/adminService.ts b/marketplace/src/services/adminService.ts
index 905d348..17f4a5e 100644
--- a/marketplace/src/services/adminService.ts
+++ b/marketplace/src/services/adminService.ts
@@ -162,35 +162,35 @@ export const adminService = {
     // Users
     listUsers: async (page = 1, pageSize = 20) => {
         log('listUsers', { page, pageSize })
-        const result = await apiClient.get<UserPage>(`/api/v1/users?page=${page}&page_size=${pageSize}`)
+        const result = await apiClient.get<UserPage>(`/v1/users?page=${page}&page_size=${pageSize}`)
         log('listUsers result', result)
         return result
     },
 
     getUser: async (id: string) => {
         log('getUser', { id })
-        const result = await apiClient.get<User>(`/api/v1/users/${id}`)
+        const result = await apiClient.get<User>(`/v1/users/${id}`)
         log('getUser result', result)
         return result
     },
 
     createUser: async (data: CreateUserRequest) => {
         log('createUser', data)
-        const result = await apiClient.post<User>('/api/v1/users', data)
+        const result = await apiClient.post<User>('/v1/users', data)
         log('createUser result', result)
         return result
     },
 
     updateUser: async (id: string, data: UpdateUserRequest) => {
         log('updateUser', { id, data })
-        const result = await apiClient.put<User>(`/api/v1/users/${id}`, data)
+        const result = await apiClient.put<User>(`/v1/users/${id}`, data)
         log('updateUser result', result)
         return result
     },
 
     deleteUser: async (id: string) => {
         log('deleteUser', { id })
-        const result = await apiClient.delete(`/api/v1/users/${id}`)
+        const result = await apiClient.delete(`/v1/users/${id}`)
         log('deleteUser done')
         return result
     },
@@ -198,42 +198,42 @@ export const adminService = {
     // Companies
     listCompanies: async (page = 1, pageSize = 20) => {
         log('listCompanies', { page, pageSize })
-        const result = await apiClient.get<CompanyPage>(`/api/v1/companies?page=${page}&page_size=${pageSize}`)
+        const result = await apiClient.get<CompanyPage>(`/v1/companies?page=${page}&page_size=${pageSize}`)
         log('listCompanies result', result)
         return result
     },
 
     getCompany: async (id: string) => {
         log('getCompany', { id })
-        const result = await apiClient.get<Company>(`/api/v1/companies/${id}`)
+        const result = await apiClient.get<Company>(`/v1/companies/${id}`)
         log('getCompany result', result)
         return result
     },
 
     createCompany: async (data: CreateCompanyRequest) => {
         log('createCompany', data)
-        const result = await apiClient.post<Company>('/api/v1/companies', data)
+        const result = await apiClient.post<Company>('/v1/companies', data)
         log('createCompany result', result)
         return result
     },
 
     updateCompany: async (id: string, data: UpdateCompanyRequest) => {
         log('updateCompany', { id, data })
-        const result = await apiClient.patch<Company>(`/api/v1/companies/${id}`, data)
+        const result = await apiClient.patch<Company>(`/v1/companies/${id}`, data)
         log('updateCompany result', result)
         return result
     },
 
     deleteCompany: async (id: string) => {
         log('deleteCompany', { id })
-        const result = await apiClient.delete(`/api/v1/companies/${id}`)
+        const result = await apiClient.delete(`/v1/companies/${id}`)
         log('deleteCompany done')
         return result
     },
 
     verifyCompany: async (id: string) => {
         log('verifyCompany', { id })
-        const result = await apiClient.patch<Company>(`/api/v1/companies/${id}/verify`, {})
+        const result = await apiClient.patch<Company>(`/v1/companies/${id}/verify`, {})
         log('verifyCompany result', result)
         return result
     },
@@ -241,35 +241,35 @@ export const adminService = {
     // Products
     listProducts: async (page = 1, pageSize = 20) => {
         log('listProducts', { page, pageSize })
-        const result = await apiClient.get<ProductPage>(`/api/v1/products?page=${page}&page_size=${pageSize}`)
+        const result = await apiClient.get<ProductPage>(`/v1/products?page=${page}&page_size=${pageSize}`)
         log('listProducts result', result)
         return result
     },
 
     getProduct: async (id: string) => {
         log('getProduct', { id })
-        const result = await apiClient.get<Product>(`/api/v1/products/${id}`)
+        const result = await apiClient.get<Product>(`/v1/products/${id}`)
         log('getProduct result', result)
         return result
     },
 
     createProduct: async (data: CreateProductRequest) => {
         log('createProduct', data)
-        const result = await apiClient.post<Product>('/api/v1/products', data)
+        const result = await apiClient.post<Product>('/v1/products', data)
         log('createProduct result', result)
         return result
     },
 
     updateProduct: async (id: string, data: UpdateProductRequest) => {
         log('updateProduct', { id, data })
-        const result = await apiClient.patch<Product>(`/api/v1/products/${id}`, data)
+        const result = await apiClient.patch<Product>(`/v1/products/${id}`, data)
         log('updateProduct result', result)
         return result
     },
 
     deleteProduct: async (id: string) => {
         log('deleteProduct', { id })
-        const result = await apiClient.delete(`/api/v1/products/${id}`)
+        const result = await apiClient.delete(`/v1/products/${id}`)
         log('deleteProduct done')
         return result
     },
@@ -277,28 +277,28 @@ export const adminService = {
     // Orders
     listOrders: async (page = 1, pageSize = 20) => {
         log('listOrders', { page, pageSize })
-        const result = await apiClient.get<OrderPage>(`/api/v1/orders?page=${page}&page_size=${pageSize}`)
+        const result = await apiClient.get<OrderPage>(`/v1/orders?page=${page}&page_size=${pageSize}`)
         log('listOrders result', result)
         return result
     },
 
     getOrder: async (id: string) => {
         log('getOrder', { id })
-        const result = await apiClient.get<Order>(`/api/v1/orders/${id}`)
+        const result = await apiClient.get<Order>(`/v1/orders/${id}`)
         log('getOrder result', result)
         return result
     },
 
     updateOrderStatus: async (id: string, status: string) => {
         log('updateOrderStatus', { id, status })
-        const result = await apiClient.patch(`/api/v1/orders/${id}/status`, { status })
+        const result = await apiClient.patch(`/v1/orders/${id}/status`, { status })
         log('updateOrderStatus done')
         return result
     },
 
     deleteOrder: async (id: string) => {
         log('deleteOrder', { id })
-        const result = await apiClient.delete(`/api/v1/orders/${id}`)
+        const result = await apiClient.delete(`/v1/orders/${id}`)
         log('deleteOrder done')
         return result
     },
diff --git a/marketplace/src/services/auth.test.ts b/marketplace/src/services/auth.test.ts
index ed0b49c..35aa80e 100644
--- a/marketplace/src/services/auth.test.ts
+++ b/marketplace/src/services/auth.test.ts
@@ -21,13 +21,12 @@ describe('authService', () => {
 
     describe('login', () => {
         it('should login successfully with valid credentials', async () => {
-            const mockResponse = {
-                data: {
-                    token: 'jwt-token-123',
-                    expires_at: '2024-12-23T00:00:00Z'
-                }
+            // apiClient now returns data directly, not response.data
+            const mockData = {
+                token: 'jwt-token-123',
+                expires_at: '2024-12-23T00:00:00Z'
             }
-            vi.mocked(apiClient.post).mockResolvedValue(mockResponse)
+            vi.mocked(apiClient.post).mockResolvedValue(mockData)
 
             const result = await authService.login({
                 username: 'admin',
diff --git a/marketplace/src/services/productService.test.ts b/marketplace/src/services/productService.test.ts
index ca52aac..a087704 100644
--- a/marketplace/src/services/productService.test.ts
+++ b/marketplace/src/services/productService.test.ts
@@ -15,8 +15,9 @@ describe('productService', () => {
     })
 
     it('search calls api with correct params', async () => {
-        const mockResponse = { data: { products: [], total: 0, page: 1, page_size: 20 } }
-        vi.mocked(apiClient.get).mockResolvedValue(mockResponse)
+        // apiClient now returns data directly, not response.data
+        const mockData = { products: [], total: 0, page: 1, page_size: 20 }
+        vi.mocked(apiClient.get).mockResolvedValue(mockData)
 
         const filters: ProductSearchFilters = {
             lat: -16.32,
@@ -37,12 +38,12 @@ describe('productService', () => {
         expect(callArgs).toContain('lng=-48.95')
         expect(callArgs).toContain('search=dipirona')
 
-        expect(result).toEqual(mockResponse.data)
+        expect(result).toEqual(mockData)
     })
 
     it('search handles optional filters', async () => {
-        const mockResponse = { data: { products: [], total: 0 } }
-        vi.mocked(apiClient.get).mockResolvedValue(mockResponse)
+        const mockData = { products: [], total: 0 }
+        vi.mocked(apiClient.get).mockResolvedValue(mockData)
 
         const filters: ProductSearchFilters = {
             lat: -16.32,
@@ -60,3 +61,4 @@ describe('productService', () => {
         expect(callArgs).toContain('max_distance=10')
     })
 })
+