Connect your agent to any external service with REST, GraphQL, and webhook tools.
Integrate with any API or external service from your agent
router-for-me/CLIProxyAPI
Wrap Gemini CLI, Antigravity, ChatGPT Codex, Claude Code, Qwen Code, iFlow as an OpenAI/Gemini/Claude/Codex compatible API service, allowing you to enjoy the free Gemini 2.5 Pro, GPT 5, Claude, Qwen model through API
tadata-org/fastapi_mcp
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
su-kaka/gcli2api
将 GeminiCLI 和 Antigravity 转换为 OpenAI 、GEMINI 和 Claude API 接口
tiann/hapi
App for Claude Code / Codex / Gemini / OpenCode, vibe coding anytime, anywhere
qixing-jk/all-api-hub
一站式管理 New API 兼容中转站账号：余额/用量看板、自动签到、密钥一键导出到常用应用、网页内 API 可用性测试、渠道与模型同步/重定向 | New‑API relay manager: balance/usage, auto check‑in, one‑click key export to popular clients, in‑page API checks, channel/model sync & redirect
Azure/data-api-builder
Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Databases and on-prem stores.
apify/apify-mcp-server
The Apify MCP server enables your AI agents to extract data from social media, search engines, maps, e-commerce sites, or any other website using thousands of ready-made scrapers, crawlers, and automation tools available on the Apify Store.
erwinkramer/bank-api
The Bank API is a design reference project suitable to bootstrap development for a compliant and modern API.
janwilmake/openapi-mcp-server
Allow AI to wade through complex OpenAPIs using Simple Language
googleapis/genai-toolbox
MCP Toolbox for Databases is an open source MCP server for databases.
Wei-Shaw/sub2api
Sub2API-CRS2 一站式开源中转服务，让 Claude、Openai 、Gemini、Antigravity订阅统一接入，支持拼车共享，更高效分摊成本，原生工具无缝使用。
appwrite/mcp-for-api
Appwrite’s MCP server. Operating your backend has never been easier.
ckanthony/openapi-mcp
Dockerized MCP Server to allow your AI agent to access any API with existing api docs
criteo/openapi-to-mcp
An MCP server for your API
tgambet/mcp-fetch-node
A Model Context Protocol server that provides web content fetching capabilities.