Specrun MCP Server

An MCP server that turns OpenAPI specifications into MCP tools. Scans a folder for OpenAPI spec files and automatically generate corresponding tools. These tools can then be used in any MCP client to interact with the APIs defined by the specs, with built-in support for authentication and server URL management via a simple .env file. 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 2026-02-27 · ★ 5 · #249 OF 250 MAINTAINED API INTEGRATION · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Specrun

before you install - you'll need

CARS_API_KEY

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add pavelpiha-specrun -- npx -y @pavelpiha/specrun

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "pavelpiha-specrun": {
      "command": "npx",
      "args": [
        "-y",
        "@pavelpiha/specrun"
      ]
    }
  }
}

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 @pavelpiha/specrun - published under the repo owner's npm scope (@pavelpiha)

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

03 · What Specrun can do

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

Latest releases

v1.7.0 · 2026-02-27

04 · Who maintains Specrun

specrun is maintained by pavelpiha. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/pavelpiha/specrun
category: API integration - ranked #249 of 250 actively-maintained API integration servers as of 2026-08-25.
registry: io.github.pavelpiha/specrun (active, first published 2026-02-17)
packages: npm:@pavelpiha/specrun

06 · Specrun FAQ

What is Specrun?

Is Specrun still maintained?

Yes - as of 2026-08-25, its last commit was 2026-02-27. We re-verify nightly.

How do I install Specrun?

Run `npx -y @pavelpiha/specrun`. The README documents one environment variable (CARS_API_KEY) to set first. You can also paste the ready-made client config above.

Does Specrun 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 Specrun

Alternatives to Specrun

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

More API integration MCP servers · Ris · Krs Poland MCP Server · Opendock · Postman MCP Server · Newsmcp

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