openmcp: Turn any openapi file into an mcp server, with just the tools you need

by getdatanaut · MCP Server · ★ 303

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install openmcp

npx -y openmcp install <url or file path to openapi specification> --client <chat client>
npx -y openmcp install https://api.weather.gov/openapi.json --client cursor

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 66/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

mcpmcp-clientmcp-servermodel-context-protocolopenapi

Quick Facts

Stars303
Forks19
LanguageTypeScript
CategoryMCP Server
LicenseMIT
Quality Score66/100
Open Issues1
Last Updated2025-08-06
Created2025-02-24
Platformscli, mcp, node
Est. Tokens~374k

About openmcp

OpenMCP OpenMCP makes it easy to turn any OpenAPI specification into an MCP server, and to remix many MCP servers into a single server with just the tools you need. It supports stdio and sse transports, and works with all of the major chat clients.

Compatible Skills

These tools work well together with openmcp for enhanced workflows:

  • mcp — semantic(0.54)+rare_topics+same_lang+similar_pop+shared_platform (53%)
  • metamcp — semantic(0.49)+rare_topics+same_lang+similar_pop+shared_platform (52%)
  • mcp-swagger-server — semantic(0.45)+rare_topics+same_lang+similar_pop+shared_platform (50%)
  • mcp-openapi-server — semantic(0.57)+same_lang+similar_pop+shared_platform (50%)
  • openapi — semantic(0.39)+rare_topics+same_lang+similar_pop+shared_platform (48%)

openmcp alternative? Top 6 similar tools

Looking for a openmcp alternative? If you're comparing openmcp with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • mcp-client-for-ollama by jonigl · ⭐ 827

    Harness the power of local LLMs with this TUI MCP Client for Ollama. Featuring all core MCP primitives (tools,

  • context-space by context-space · ⭐ 814

    Ultimate Context Engineering Infrastructure, starting from MCPs and Integrations

  • MCPSharp by afrise · ⭐ 377

    MCPSharp is a .NET library that helps you build Model Context Protocol (MCP) servers and clients - the standar

  • MCP-Defender by MCP-Defender · ⭐ 256

    Desktop app that automatically scans and blocks malicious MCP traffic in AI apps like Cursor, Claude, VS Code

  • pluggedin-app by VeriTeknik · ⭐ 103

    The Crossroads for AI Data Exchanges. A unified, self-hostable web interface for discovering, configuring, and

  • mysql_mcp_server by designcomputer · ⭐ 1.4k

    A Model Context Protocol (MCP) server that enables secure interaction with MySQL databases

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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