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API gateway and MCP server for integrations
API 200 gives you a single gateway layer for third-party APIs. It lets you import endpoints from OpenAPI or Postman, then add caching, retries, mocks, auth, transformations, and custom headers around them. It also includes monitoring and incident detection, plus an MCP server so agent clients can reach your API setup through a standard tool connection.
Builders who connect third-party APIs into agent workflows and want to manage them from one place.
You can expose many services through one gateway and handle failures, changes, and monitoring in a single setup.
What it does
Import endpoints
Brings endpoints in from OpenAPI and Postman.
Response controls
Adds caching, automatic retries, mock responses, fallback responses, custom headers, and response transformation.
Authentication management
Handles API auth settings in the platform.
Schema watching
Notifies you when an API response schema changes.
Incident detection
Shows a tab for incidents the system detects automatically.
Endpoint monitoring
Tracks endpoint stats with charts and logs.
MCP support
Provides an MCP server for Claude Desktop and other clients.
README
The Open Source API Integration Platform.
Learn more »
Website
·
Issues
·
Roadmap
About API 200
API 200 is all-in-one gateway for managing third-party APIs efficiently. Integrate third-party APIs or setup MCP server in minutes with auto-generated code, docs, auth, caching and error handling – so you can focus on what really matters.
Key Features
✅ Fast API Setup:
- Authentication management
- Response caching
- Automatic retries
- Mock responses
- Response transformation
- Fallback responses
- Custom headers
✅ Schema Watching: Get notified when one of your APIs changes response schema
✅ Incident Detection: Dedicated tab for incidents automatically detected by the system
✅ In-browser Swagger Integration
✅ Import Endpoints from OpenAPI and Postman
✅ Endpoint Monitoring: Convenient charts with your endpoint's statistics
✅ Comprehensive Logging
✅ MCP Support (read more)
Features in Progress:
- More authentication methods
Quickstart
Get started immediately with our managed version of API 200. Users can go to our cloud platform and start integrating API endpoints instantly without any setup or infrastructure management. Visit API200.co to begin.
MCP
To configure the API200 MCP server with Claude Desktop (or any other client):
- Open Claude Desktop settings
- Navigate to Developer settings
- Add a new custom tool with the following configuration (can be found on the Credentials tab):
{
"mcpServers": {
"api200": {
"command": "npx",
"args": [
"api200-mcp@latest"
],
"env": {
"USER_KEY": "your-api-key-here"
}
}
}
}
Self-Hosted Setup
Prerequisites
- Docker
- Docker Compose
- Node.js
- npm
Installation
# Clone the repository and install dependencies
git clone https://github.com/API-200/api200-selfhosted
cd api200-selfhosted
npm i
# Run setup script
# For localhost (admin privileges recommended):
sudo node setup.js
# OR for non-localhost:
node setup.js
# Start services
docker-compose up -d
⚠️ Note: Localhost setup requires host file modification (
127.0.0.1 kong), needing admin privileges.
Access Your Installation
- Frontend:
http://<your-hostname-or-ip>:3000 - API Handler:
http://<your-hostname-or-ip>:8080
Community and Support 🤝
- Check out the Discussions for ideas and feedback
- Report bugs or request features through Issues
- ⭐ Star our repository to help us raise awareness
Contact us
For support, custom implementations, or any other inquiries: Contact us
Tech Stack
- Koa - Backend Framework
- Redis - Caching Layer
- Supabase - Database & Auth
- Next.js - Frontend Framework
- shadcn/ui - Component Library
License
API 200 is licensed under Sustainable Use License. See the LICENSE file for more details.
Files in the repo
- .github
- assets
- packages
- volumes
- .gitignore
- docker-compose.yml
- LICENCE.md
- package-lock.json
- package.json
- pnpm-lock.yaml
- README.md
- setup.js
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