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Paste any URL
Enter the web app you want your AI to access
Browse for 60 seconds
Click around normally. API calls are captured automatically.
Deploy and connect
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Two approaches to generating MCP servers. One captures API traffic from any URL. The other generates from an OpenAPI specification file.
| Feature | DataFaucet Free tier | liblab |
|---|---|---|
| Input required | ✓ Any URL (browse the site, traffic is captured)free | ~ OpenAPI spec file (must already exist or be written) |
| Sites without an OpenAPI spec | ✓ Works (captures real API traffic from any site)free | ✗ Cannot generate (requires a spec file) |
| Internal tools / private APIs | ✓ Yes (browse your admin panel, capture traffic)free | ~ Only if you write an OpenAPI spec for them |
| Technical skill required | ✓ None (point and click)free | ~ Moderate (need to find/write OpenAPI spec, run CLI) |
| Hosting | ✓ Fully hosted (deploy to cloud, get URL)free | ~ Self-hosted (generates code, you deploy it) |
| Auth handling | ✓ Captured from browser session automaticallyfree | ~ Configured in spec (you manage credentials) |
| Generated output | ✓ Live MCP endpoint + API key, ready to connect | ✓ TypeScript/Python source code to deploy yourself |
| Endpoint customization | ✓ Select/deselect captured endpoints before deploy | ✓ Full spec control (edit OpenAPI before generating) |
| Type safety | ~ Inferred from captured traffic | ✓ Derived from OpenAPI schema (stronger types if spec is detailed) |
| Try DataFaucet free → | ||
No OpenAPI spec? No problem.
Point DataFaucet at any URL. It captures the API traffic and generates your server.
liblab takes an OpenAPI specification and generates MCP server code from it. If you have a well-documented API with a spec file, this gives you strongly-typed tools with comprehensive parameter definitions.
DataFaucet takes a different approach: point it at any URL, browse the site, and it captures real API traffic to generate a working MCP server. No spec file needed. No YAML writing. Works on sites that never published an API spec at all.
Most real-world APIs lack a complete, up-to-date OpenAPI spec. Internal tools, admin panels, and SaaS products rarely publish one. DataFaucet works regardless. liblab gives richer types when a spec exists.
No spec file. No CLI. No deployment pipeline. Enter a URL and deploy.
Free tier. 3 servers. No credit card.
They create demand. We create supply.
Pick any URL. Browse for 30 seconds. Get a hosted MCP endpoint your AI can call immediately.
No credit card. No code. Free tier includes 3 servers.
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Dashboard, admin panel, SaaS tool
Browse for 60 seconds
We capture every API call
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Add to your claude_desktop_config.json:
"your-app": {
"url": "https://datafaucet.dev/api/mcp/ID/sse"
}