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API Gateway MCP Server

API Gateway MCP Server is an agent skill (a SKILL.md file) from google/skills. Configures Google Cloud API Gateway to act as a remote Model Context Protocol (MCP) server (Public Preview) that exposes REST APIs as agent tools… It works with Claude Code, Codex and Gemini CLI and has 21,578 GitHub stars across a repository of 7 listed skills.

github.com/google/skills/skills/cloud/api-gateway-mcp-server (opens in a new tab)

Data as of from the GitHub API and skills.sh; description from the skill's SKILL.md. Report an error

View on GitHub (opens in a new tab)View on skills.sh (opens in a new tab)

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add google/skills
/plugin   # browse google-plugins and install the plugin that contains api-gateway-mcp-server

In the Claude apps, zip the api-gateway-mcp-server folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/google/skills.git
cp -r skills/skills/cloud/api-gateway-mcp-server .agents/skills/api-gateway-mcp-server   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/google/skills.git
cp -r skills/skills/cloud/api-gateway-mcp-server .cursor/skills/api-gateway-mcp-server   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Configures Google Cloud API Gateway to act as a remote Model Context Protocol (MCP) server (Public Preview) that exposes REST APIs as agent tools over HTTP (POST /mcp). Use when migrating OpenAPI 2.0 specs to OpenAPI 3.x for MCP, annotating specs with x-google-api-management.mcp and x-google-mcp-tool, securing tools/list with JWTs or API keys, connecting Google ADK (McpToolset) or Apigee API hub and Agent Registry, or troubleshooting MCP JSON-RPC errors (-32601, -32602, -32000).

When it triggers

  • Use when migrating OpenAPI 2.
  • use for Apigee X proxy bundles, outbound LLM model routing, or GKE Gateway API.

More skills in google/skills

7 skills are listed from this repository.

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FAQ

API Gateway MCP Server FAQ

Still curious? Email info@appsgit.com.

How do I install the API Gateway MCP Server skill?

In Claude Code, run /plugin marketplace add google/skills, then install its plugin from /plugin. For Codex or Cursor, copy the api-gateway-mcp-server folder into .agents/skills/ or .cursor/skills/.

Is the API Gateway MCP Server skill free?

Yes. The repository is open source under the Apache-2.0 license.

Is API Gateway MCP Server maintained?

The repository's most recent commit was on Oct 25, 2026. appsgit only lists skills from repositories with a commit in the last six months.