AI API Endpoint Generator

We support Express.js with middleware patterns, FastAPI with Pydantic models and automatic documentation, Spring Boot with annotation-driven controllers, NestJS with decorators and dependency injection, Django REST Framework with serializers and viewsets, Go with the Gin framework, and Laravel with request classes and resources. Each output follows that framework's idioms.

Each framework uses its native validation approach. Express gets Joi or Zod schemas. FastAPI uses Pydantic models. Spring Boot uses Bean Validation annotations. NestJS uses class-validator decorators. Validation errors return structured error responses with field-level messages, making it clear to API consumers exactly what needs to be corrected.

The generator uses semantically correct status codes: 200 for successful GET, 201 for successful POST creation, 204 for successful DELETE, 400 for validation errors, 401 for missing authentication, 403 for insufficient permissions, 404 for missing resources, 409 for conflicts, and 500 for unexpected errors. Each code is paired with a consistent response body format.

When authentication is enabled, the endpoint includes middleware or decorators that validate the authentication token, extract the user identity, and make it available to the handler. JWT Bearer validates and decodes the token. API Key checks against stored keys. The output notes where to plug in your actual authentication logic.

Yes, describe a resource with CRUD operations and the generator creates all five standard endpoints: GET for listing with pagination, GET by ID for single resource, POST for creation, PUT or PATCH for updates, and DELETE for removal. Each endpoint has proper validation, error handling, and response formatting tailored to its operation type.