API Endpoint Checklist

What is API Endpoint Checklist?

API Endpoint Checklist generates a comprehensive review checklist for REST API endpoints covering security, performance, documentation, and best practices. It validates URL structure against REST conventions, checks HTTP method usage, evaluates authentication requirements, and flags missing elements like rate limiting, pagination, and proper error response formats. The tool produces checklists tailored to your API style — whether RESTful, GraphQL, or RPC-style endpoints.

API architects designing new services, backend developers self-reviewing endpoints, and QA engineers creating API test plans. The tool runs entirely in your browser — your data never leaves your device.

How to Use API Endpoint Checklist

1. Enter your API endpoint URL pattern and select the HTTP method (GET, POST, PUT, DELETE, PATCH)
2. Specify the authentication type — API key, OAuth 2.0, JWT bearer, or none
3. Select which checklist categories to include (security, performance, documentation, error handling)
4. Review each item, mark it as passing or failing, and export the checklist as a report

Common Use Cases

• Reviewing new API endpoints before merging pull requests to catch design issues
• Auditing existing APIs for security gaps like missing authentication or CORS misconfiguration
• Ensuring consistent API design across teams by standardizing checklist items
• Preparing API endpoints for production readiness with performance and monitoring checks

Pro Tips

• Always include idempotency checks for POST and PUT endpoints — duplicate requests from retries should not create duplicate resources
• Every endpoint should return proper 4xx errors with a consistent error body format (error code, message, details) rather than generic 500s
• Rate limiting headers (X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset) should be present on every response, not just when limits are exceeded

Why Use This Tool?

• Privacy-first: All processing happens locally in your browser. No data is transmitted to any server.
• No installation required: Works in any modern browser on desktop or mobile.
• Completely free: No account, no credit card, no usage caps.
• Fast and reliable: Powered by modern Web APIs for near-instant results.

Related Concepts

Learn more about related topics: REST API design, OpenAPI specification, HTTP status codes, API gateway.

Frequently Asked Questions