# Reqres MCP for AI Agents AI Agent Connect > Reqres MCP. Test front-end apps against a real REST API to manage users, projects, and resources for prototyping. ## Overview - **Category:** developer-tools - **Price:** Free - **Endpoint:** https://edge.vinkius.com/vk_preview_AtxnuBtQ26tiOA6pBRuixOGykiHBrl8ytWq6813r/ai-agent-connect - **Tags:** api-testing, mock-data, prototyping, user-management, rest-api ## Description Reqres lets you interact with a hosted REST API to simulate real-world data interactions without the headache of building your own backend. If you're building a frontend and need to see how your UI handles user lists, project records, or authentication flows, this Connector connects you directly to an environment that behaves like a production system. You can move past static JSON files and actually test how your app handles live data fetching and UI rendering. It's a go-to for anyone who needs a reliable sandbox for prototyping. Since it's hosted on Vinkius, you can quickly plug it into your favorite AI client to start testing. You can simulate everything from simple user creation to complex agent scenarios, including triggered failures and relational data orders. It gives your agent a consistent playground to practice data manipulation while you focus on the user experience. ## Tools ### create_app_record Create a user-scoped record in an app collection. Use this to mock specific data points for different applications. ### create_record Create a new record in a project collection. This lets you mock production-like behavior for project management tools. ### create_user Create a user in the Demo API. Use this to quickly add new identities to your test environment. ### delete_record Delete a specific record from a project collection. This helps you test how your app handles data removal. ### delete_user Delete a user from the Demo API. Use this to clear out demo identities when you're done with a test. ### get_record Get a single record from a project collection. This is perfect for testing detail views in your application. ### get_user Get a user by their ID from the Demo API. Use this to fetch specific profile details for a single user. ### list_app_records List all user-scoped records in an app collection. This is useful for populating app-specific views with data. ### list_colors List Pantone color resources from the Demo API. Use this to test color pickers or theme components. ### list_records List all records within a project collection. This helps you populate a dashboard with a list of projects. ### list_users List users from the Demo API with pagination. Use this to test how your UI handles large, paginated lists. ### register_demo Register a new user and get an ID and token. Use this to test your registration and onboarding flows. ### request_magic_link Request a magic link for App User login. This allows you to simulate modern, passwordless login flows. ### trigger_scenario Trigger specific failure scenarios in the Agent Sandbox. Use this to test how your agent handles unexpected errors. ### update_record Replace a record entirely in a project collection. This is useful for testing full 'save' actions on your forms. ### update_user Update a user in the Demo API. Use this to test full profile update flows in your application. ### verify_magic_link Verify a magic link token to get a session token. This lets you test the second half of a magic link login flow. ### agent_users Get paginated users from the Agent Sandbox. This is great for testing how your UI handles large lists of people. ### login_demo Log in with fixture users to get a session token. This is the easiest way to simulate an authenticated session. ### patch_record Partially update a record in a project collection. Use this to test edit forms where you only change one field. ### patch_user Partially update a user in the Demo API. This is perfect for updating a single piece of user info like a job title. ### agent_health Check the Agent Sandbox health and rate-limit status. Use this to monitor the status of your agent's sandbox. ### agent_orders Get orders with relational data from the Agent Sandbox. This is great for testing complex data structures like orders. ### agent_scenarios List all available failure scenarios in the Agent Sandbox. Use this to see what kind of errors your agent can test. ### get_me Get the current app user info. Use this to test 'My Profile' pages or headers that show the current user. ## Prompt Examples **Prompt:** ``` Can you create a new user for our demo and then give me their session token? ``` **Response:** ``` I've registered a new user for you. Here are the details: * **User ID**: 882 * **Status**: Registered * **Session Token**: `req_sess_992831` You can now use this token to access the protected dashboard routes. ``` **Prompt:** ``` I need to see what the project records look like for the inventory collection. ``` **Response:** ``` I've pulled the records from the 'inventory' project collection. Here is the current data: | ID | Name | Status | |---|---|---| | 101 | Warehouse A | Active | | 102 | Storage Unit B | Maintenance | | 103 | Loading Dock | Active | Would you like me to update the status of any of these? ``` **Prompt:** ``` Can you trigger a failure scenario so I can see how the app handles it? ``` **Response:** ``` I've triggered a '500 Internal Server Error' scenario in the Agent Sandbox. **Test Result:** * **Scenario**: Server Crash * **Response Code**: 500 * **Latency**: 2400ms Your agent should now be able to catch this error and display the 'Try again later' message. ``` ## Capabilities ### Manage user accounts Create, fetch, and delete user profiles to test identity flows. ### Create project records Perform full CRUD operations on project collections to mock databases. ### Fetch color resources Access Pantone color data to validate data fetching and UI rendering. ### Simulate login flows Test registration and login with fixture users to receive valid tokens. ### Trigger failure scenarios Monitor specific agent scenarios and orders for advanced workflow testing. ### Get app user info Retrieve current app user information for profile pages. ## Use Cases ### Testing a signup flow A developer needs to test a registration page. They ask their agent to use register_demo to create a user and then use login_demo to grab a session token. ### Mocking a project dashboard A designer wants to see how a list of 50 projects looks. They ask their agent to use list_records to populate the UI with real-looking data. ### Simulating a 500 error A QA engineer wants to see how the app handles a crash. They ask their agent to use trigger_scenario to force a failure in the Agent Sandbox. ### Testing color palettes A frontend dev wants to test a theme switcher. They ask their agent to use list_colors to fetch actual Pantone data. ## Benefits - Stop hardcoding mock data by using list_users and agent_users to pull real user lists into your UI. - Test your auth logic without a backend by using login_demo and register_demo to get real session tokens. - Simulate app failures with trigger_scenario and agent_scenarios to see how your agent handles errors. - Manage project data dynamically with create_record and update_record to mock production-like behavior. - Verify magic link flows with request_magic_link and verify_magic_link to test secure login paths. - Get real-world data for your UI components by using list_colors to fetch actual Pantone data. ## How It Works The bottom line is you get a production-like API environment for testing without any backend work. 1. Subscribe to the Reqres MCP. 2. Enter your Reqres API Key or Session Token. 3. Start asking your agent to fetch users or create records. ## Frequently Asked Questions **Is Reqres MCP good for production?** No, this is a tool for prototyping and testing. You should use a real database and backend for production data. **Can I use Reqres MCP to mock user profiles?** Yes, you can use it to create and fetch user data to see how your UI handles different profiles. **How do I test API errors with Reqres MCP?** You can use the agent sandbox tools to trigger specific failure scenarios and see how your application handles them. **Does Reqres MCP store my data?** No, it uses a demo environment. You should not put any sensitive or real customer information into this Connector. **Can I use Reqres MCP for auth testing?** Yes, it has tools to simulate registration, login, and magic link flows so you can test your auth logic. **How does Reqres MCP handle pagination?** It supports paginated lists for users and other records, letting you test how your UI handles large datasets. **Is there a way to get a session token with Reqres MCP?** Yes, you can use the login tools to get a session token from fixture users to simulate an authenticated session. **How can I see the list of available demo users?** You can use the `list_users` tool. It supports pagination, so you can specify which `page` you want to retrieve from the demo database. **Can I test authentication flows like login and registration?** Yes! Use `login_demo` or `register_demo` with fixture emails (like 'eve.holt@reqres.in') to simulate successful authentication and receive a token. **How do I manage custom data for my specific project?** Use the Project API tools like `list_records` and `create_record`. You just need to provide a `slug` to identify your collection and the JSON data payload.