Free OpenAPI 3.1 Scaffold Generator

Create an OpenAPI 3.1 scaffold from HTTP methods and paths. Export YAML or JSON, then add request schemas, responses and authentication details.

Free · No AI API key required

How to use this tool

Start an OpenAPI document from a list of endpoints. Each line supplies a method, path and summary; the generator turns those declarations into an editable OpenAPI 3.1 scaffold.

  1. Enter one endpoint per line using METHOD /path summary.
  2. Choose YAML or JSON output.
  3. Generate the scaffold, then fill in the actual schemas, responses and authentication requirements.

Example to try

GET /users List users GET /users/{id} Get a user POST /users Create a user

Supported use and limits

The generator does not discover a running API or infer your application's request/response models. Review and validate the completed specification before sharing it with clients.

Is the generated document a complete API contract?

It is a scaffold. Supply the actual payload schemas, status codes, authentication and server information. JSON Schema Generator can help draft schemas from sample payloads.

Free to use without an account. Submitted input is processed on our server. How Sarvam Tools works.