Free OpenAPI MCP Readiness Checker.

Paste an OpenAPI or Swagger spec and get a private browser-only score with fixes before generating MCP tools.

MCP readiness report

Report appears here

Paste a valid OpenAPI or Swagger document to check importability, tool quality, auth clarity, safety, and coverage.

Browser-only processing

Your API specification stays on your device while the checker analyzes it.

MCP-focused checks

The score reflects tool naming, descriptions, auth clarity, risky actions, and endpoint coverage.

Actionable report

Copy or download a Markdown report your API team can use before importing into 0mcp.

Next step

Generate an MCP server from your OpenAPI spec.

Once the spec is ready, import it into 0mcp, choose the operations agents can call, and publish a hosted MCP endpoint.

Generate MCP server

FAQs

No. The readiness check runs inside your browser. Your API specification is not uploaded to 0mcp.

Yes. The checker accepts OpenAPI 3.x and Swagger 2.0 documents in JSON or YAML.

It checks whether the spec has enough structure, naming, descriptions, authentication context, and safety detail to become useful MCP tools for AI agents.

0mcp can import the spec and help you shape generated tools, but the best results come from improving the underlying API contract as well.