About
MCP Link automatically transforms any OpenAPI v3 API specification into a fully functional MCP server, enabling instant compatibility with AI agents like Claude, Cursor, and VS Code without modifying the original API codebase. Key features of MCP Link: - Automatic generation of complete MCP servers from OpenAPI schemas - Hosted cloud deployment option at mcp-link.vercel.app for immediate testing - Local self-hosted deployment with configurable ports and hosts - Zero code modification required — original APIs remain unchanged - Authentication header support for API keys, bearer tokens, and custom schemes - Path filtering with include/exclude patterns using wildcards (* and **) - Standardized conversion ensuring all API endpoints are correctly mapped to MCP tools
README
MCP Link - Convert Any OpenAPI V3 API to MCP Server
[](https://discord.gg/qkzfbqdSa9)
🧩 Architecture
🤔 Why MCP Link?
There is a notable gap in the current AI Agent ecosystem:
MCP Link solves these issues through automation and standardization, allowing any API to easily join the AI-driven application ecosystem.
🌟 Key Features
🌐 Online Version
Try our hosted version at mcp-link.vercel.app to quickly convert and test your APIs without installation.
🚀 Quick Start
Installation
# Clone repository
git clone https://github.com/automation-ai-labs/mcp-link.git
cd mcp-openapi-to-mcp-adapterInstall dependencies
go mod download
Running
# Specify port
go run main.go serve --port 8080 --host 0.0.0.0
Parameter Description
s= - URL of the OpenAPI specification fileu= - Base URL of the target APIh= - Authentication header format, in the format of header-name:value-prefixf= - Path filter expressions to include or exclude API endpoints. Syntax:+/path/** - Include all endpoints under /path/
- -/path/** - Exclude all endpoints under /path/
- +/users/*:GET - Include only GET endpoints for /users/{id}
- Multiple filters can be separated by semicolons: +/:GET;-/internal/
- Wildcards: * matches any single path segment, ** matches zero or more segmentsExamples
| _ | API | MCP Link URL | Authentication Method | |------|-----|-------------|---------| | | Brave Search | https://mcp-link.vercel.app/links/brave | API Key | | | DuckDuckGo | https://mcp-link.vercel.app/links/duckduckgo | None | | | Figma | https://mcp-link.vercel.app/links/figma | API Token | | | GitHub | https://mcp-link.vercel.app/links/github | Bearer Token | | | Home Assistant | https://mcp-link.vercel.app/links/homeassistant | Bearer Token | | | Notion | https://mcp-link.vercel.app/links/notion | Bearer Token | | | Slack | https://mcp-link.vercel.app/links/slack | Bearer Token | | | Stripe | https://mcp-link.vercel.app/links/stripe | Bearer Token | | | TMDB | https://mcp-link.vercel.app/links/tmdb | Bearer Token | | | YouTube | https://mcp-link.vercel.app/links/youtube | Bearer Token |Usage in AI Agents
{
"mcpServers": {
"@service-name": {
"url": "http://localhost:8080/sse?s=[OpenAPI-Spec-URL]&u=[API-Base-URL]&h=[Auth-Header]:[Value-Prefix]"
}
}
}
These URLs allow any API with an OpenAPI specification to be immediately converted into an MCP-compatible interface accessible to AI Agents.
📋 Future Development
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