API mock server

Describes routes as plain text or JSON and finds the answer for a given request: path matching with parameters, an exact route winning over a parameterised one, per-method routing with a 405 answer, built-in 404 and 405 replies, and value substitution into the response body from path parameters, the query string, headers and the request body. Simple random values use a reproducible seed.

Fill in the fields, run the tool and review the result. Your input is not added to a public page. Use the learning mode for calculation details.