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MCP Openapi Schema Explorer logo

MCP Openapi Schema Explorer

kadykov/mcp-openapi-schema-explorer

An MCP (Model Context Protocol) server that provides token-efficient access to OpenAPI (v3.0) and Swagger (v2.0) specifications via MCP Resource Templates.

View on GitHub2

Install

npm install -g mcp-openapi-schema-explorer

Client configuration

{
  "mcpServers": {
    "My API Spec (npx)": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-openapi-schema-explorer@latest",
        "<path-or-url-to-spec>",
        "--output-format",
        "yaml"
      ]
    }
  }
}
GitHub stars
2
Author
@kadykov
Category
Knowledge Management, Developer Tools
License
MIT
Updated
Oct 6, 2026

Features

  • MCP Resource Template Access: Explore OpenAPI specs via parameterized URI templates (openapi://info, openapi://paths/{path}/{method}, openapi://components/{type}/{name}).

  • OpenAPI v3.0 & Swagger v2.0 Support: Loads both formats, automatically converting v2.0 to v3.0.

  • Local & Remote Files: Load specs from local file paths or HTTP/HTTPS URLs.

  • Token-Efficient: Designed to minimize token usage for LLMs by providing structured access.

  • Multiple Output Formats: Get detailed views in JSON (default), YAML, or minified JSON (--output-format).

  • Dynamic Server Name: Server name in MCP clients reflects the info.title from the loaded spec.

  • Reference Transformation: Internal $refs (#/components/...) are transformed into clickable MCP URIs.

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
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Windsurf

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