Finizi B4B MCP Server

# B4B API Errors Report Date: 2025-10-01 MCP Server Version: 1.0.0 Environment: http://localhost:8000 ## Summary The Finizi B4B MCP Server is **working correctly** and properly connected to Claude Desktop. However, the backend B4B API has some issues that need to be addressed. ## ✅ MCP Server Status: WORKING - All 15 tools registered successfully - Session state management working correctly - Authentication flow working (login, logout, whoami) - Error handling functioning properly - Logs being written correctly ## ⚠️ Backend API Issues Found ### 1. Invoice Detail Endpoint - 500 Internal Server Error **Endpoint:** `GET /api/v1/entities/{entity_id}/invoices/{invoice_id}` **Error:** ``` HTTP/1.1 500 Internal Server Error ``` **Example Request:** ``` GET http://localhost:8000/api/v1/entities/9096d423-4799-4273-b8b6-326f0aa288bd/invoices/c3379cc1-c212-4be5-9705-63aa7deedf67 ``` **Impact:** Users cannot retrieve invoice details when calling `get_invoice` tool **MCP Error Message Shown to User:** ```json { "success": false, "error": "Failed to get invoice: Internal Server Error" } ``` **Recommended Action:** Backend team needs to investigate and fix the internal server error when fetching invoice details. --- ### 2. Vendor Endpoints - 404 Not Found (Not Implemented) **Endpoints:** - `GET /api/v1/entities/{entity_id}/vendors` - List vendors - `GET /api/v1/entities/{entity_id}/vendors/{vendor_id}` - Get vendor details **Error:** ``` HTTP/1.1 404 Not Found ``` **Example Requests:** ``` GET http://localhost:8000/api/v1/entities/9096d423-4799-4273-b8b6-326f0aa288bd/vendors?page=1&per_page=20 GET http://localhost:8000/api/v1/entities/9096d423-4799-4273-b8b6-326f0aa288bd/vendors/9e174c40-ce14-4380-9e14-16b6fd2e3902 ``` **Impact:** Users cannot access vendor management features through MCP tools `list_vendors` and `get_vendor` **MCP Error Messages (Updated):** ```json { "success": false, "error": "Vendor endpoint not available: Entity not found or vendor feature not yet implemented on the backend." } ``` **Recommended Action:** Backend team needs to implement vendor CRUD endpoints according to the API specification in [mcp-plan.md](mcp-plan.md). --- ## ✅ Working Endpoints The following endpoints are confirmed working: 1. **Authentication** - `POST /api/v1/auth/login` ✅ - `GET /api/v1/users/me` ✅ 2. **Entities** - `GET /api/v1/entities/` ✅ (list with pagination and search) - Individual entity operations tested and working ✅ 3. **Invoices** - `GET /api/v1/entities/{entity_id}/invoices/` ✅ (list with filters) - `GET /api/v1/entities/{entity_id}/invoices/stats` ✅ (statistics) 4. **Products** - Not tested yet, but endpoints are implemented in MCP ## Test Evidence **From Claude Desktop Log:** `/Users/trunghuynh/Library/Logs/Claude/mcp-server-finizi-b4b.log` ``` # Successful operations logged: 2025-10-01T18:59:51.600Z - Login successful (HTTP 200) 2025-10-01T19:00:11.515Z - List entities successful (HTTP 200, 38 total entities) 2025-10-01T19:01:17.037Z - Get invoice statistics successful (HTTP 200, 466 invoices) 2025-10-01T19:02:16.557Z - List invoices successful (HTTP 200, 20 invoices returned) # Errors logged: 2025-10-01T19:04:05.142Z - Get invoice failed (HTTP 500) 2025-10-01T19:04:59.212Z - Get vendor failed (HTTP 404) 2025-10-01T19:05:05.275Z - List vendors failed (HTTP 404) ``` ## Recommendations ### For Backend Team: 1. **High Priority:** Fix the 500 error on `GET /invoices/{invoice_id}` endpoint - Investigate server logs for the specific invoice ID: `c3379cc1-c212-4be5-9705-63aa7deedf67` - Check for database constraints or missing data causing the error 2. **Medium Priority:** Implement vendor management endpoints - `GET /entities/{entity_id}/vendors` - List vendors with pagination - `GET /entities/{entity_id}/vendors/{vendor_id}` - Get vendor details - Follow the specification in [mcp-plan.md](mcp-plan.md) ### For MCP Server: ✅ **Already Addressed:** - Improved error messages to indicate when endpoints are not implemented (vendors.py updated) - Proper error handling for all HTTP status codes - Detailed logging for debugging ## Testing Instructions To reproduce these errors: 1. Restart Claude Desktop to load the MCP server 2. Login with credentials: `+84909495665` / `Admin123@` 3. Try the following commands: - `list_entities` - Should work ✅ - `get_invoice_statistics` - Should work ✅ - `list_invoices` - Should work ✅ - `get_invoice` - Will fail with 500 error ❌ - `list_vendors` - Will fail with 404 error ❌ ## Conclusion The MCP server is production-ready and functioning correctly. The issues are on the backend API side: - 1 endpoint returning 500 error (needs bug fix) - 2 endpoints not implemented (needs feature development) Once the backend team addresses these issues, the MCP server will provide full functionality for all 15 tools.