Openapi MCP Server

Point mcp-openapi at any OpenAPI 3.x or Swagger 2.0 spec URL and it generates Model Context Protocol (MCP) tools automatically. No code generation, no config files, no boilerplate. Your AI assistant gets callable tools for every API endpoint in seconds. It runs locally over stdio via the published package.

People connecting API integration tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-03-21 · ★ 3 · #146 OF 250 MAINTAINED API INTEGRATION · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Openapi

before you install - you'll need

Set GITHUB_TOKEN, WEATHER_API_KEY before connecting.

Claude Code

claude mcp add docat0209-mcp-openapi -- npx -y mcp-openapi

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "docat0209-mcp-openapi": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-openapi"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package mcp-openapi - unscoped; check the name against the project README before installing

registry namespace io.github.Docat0209 is GitHub-verified and matches the repo owner

03 · What Openapi can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.3.0 · 2026-03-21

What's New · Dynamic Tool Discovery · Large APIs (100+ endpoints) now auto-register 3 meta-tools (search_operations, list_by_tag, get_tool_details) so LLMs can explore the API without flooding the context window.…

v0.2.3 · 2026-03-13

Fix mcpName case for Official MCP Registry · Add LICENSE file · Add glama.json for Glama listing

v0.2.2 · 2026-03-13

Add mcpName for Official MCP Registry publishing · Add server.json for MCP Registry · Add cross-link to graphql-to-mcp in README

04 · Who maintains Openapi

openapi is maintained by docat0209. We track 2 MCP servers from docat0209 - 2 actively maintained, 4 combined GitHub stars, oldest repo from Mar 2026.

05 · Facts

repository: github.com/docat0209/mcp-openapi
category: API integration - ranked #146 of 250 actively-maintained API integration servers as of 2026-08-25.
registry: io.github.Docat0209/openapi (active, first published 2026-03-13)
packages: npm:mcp-openapi

06 · Openapi FAQ

What is Openapi?

Is Openapi still maintained?

Yes - as of 2026-08-25, its last commit was 2026-03-21. We re-verify nightly.

How do I install Openapi?

Run `npx -y mcp-openapi`. The README documents 2 environment variables (GITHUB_TOKEN, WEATHER_API_KEY) to set first. Set GITHUB_TOKEN, WEATHER_API_KEY before connecting. You can also paste the ready-made client config above.

Does Openapi run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Openapi

Alternatives to Openapi

Maintained API integration servers if Openapi isn't the fit.

More API integration MCP servers · Yandex Metrika · Help Scout MCP Server · Chassis · Avito MCP · Star Wars MCP

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