Developer Tool

MCP Manifest
Generator.

Turn any OpenAPI spec or Postman collection into a production-ready MCP manifest. Classify destructive tools automatically. Download and ship.

Input

Paste an OpenAPI (YAML or JSON) or Postman Collection below.

Input type

Manifest name

API definition

Or upload a file

Parse — Extracts every operation from your API definition into a normalized tool list.

Generate — Maps each operation to an MCP tool with name, description, and input schema.

Classify — Flags destructive tools (delete, update, send, etc.) with safety annotations per the MCP spec.

Export — Download the manifest or a registry-compatible server.json.

For description optimization and test harness features, install the CLI: npx mcp-manifest-gen