Writing
API Documentation Prompt
API documentation fails developers in two predictable ways: missing the example request they copy first and skipping the error codes they hit in production. This generator gives you a complete, consistent template that covers both. Enter the endpoint path and choose the HTTP method, and it produces the standard sections in the order developers read them — summary, authentication, path and query parameters, a request body section (for POST, PUT, and PATCH only; omitted for GET and DELETE), a formatted example request, the success response with a sample JSON payload, error responses listed by status code, and notes on rate limits, pagination, and idempotency. Backend engineers and technical writers use it to document endpoints uniformly, to make sure nothing developers rely on is missing, and to remember the auth details and error cases that thin documentation always skips. Fill the template with your real schema, type every parameter, and list every error status the endpoint can return — the developer who integrates your API at 2 a.m. will thank you.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Enter the endpoint path.
- Choose the HTTP method.
- Fill in your real parameters and schema.
- List every error status the endpoint can return.
Use Cases
- •Documenting a REST API endpoint consistently
- •Making sure auth, parameters, and errors are all covered
- •Providing copy-ready example requests and responses
- •Standardising the format across an entire API
- •Briefing engineers on what endpoint docs must include
Tips
- →Always include a copy-ready example request.
- →Type every parameter and mark required fields.
- →Document each error status, not just the happy path.
- →Keep the format identical across all endpoints.
FAQ
What do developers most need from API docs?
A working example request they can copy and a complete parameter list with types and required fields. Clear error responses come next, so they can build robust clients instead of discovering failure modes in production. Documentation that omits these forces developers into the source code.
Why list every error response?
Because handling errors is half of integrating an API. Listing each status code and the condition that triggers it — 400 for malformed input, 401 for missing or invalid auth, 404 for a missing resource, 429 for rate limiting — lets developers write defensive client code rather than guessing.
Does the template change by HTTP method?
Slightly. GET and DELETE requests carry no body, so the template marks that section as "none." POST, PUT, and PATCH carry a JSON payload that you must document field by field — type, whether required, default, and description. The generator adjusts the body section automatically to the method you choose.
How do I keep API documentation consistent across many endpoints?
Use the same template for every endpoint without exception — same section order, same heading names, same example format. Consistency is what lets developers scan rather than read. Consider a docs-as-code approach where the template is enforced in review, so format drift gets caught before it ships.
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