crawl4ai
MCPApache-2.0
Open-source web crawler that turns any website into clean, LLM-ready Markdown for RAG and AI agents.
84k·Developer Tools·Open source
Alternative to
mcpo
MCPOpen sourceExpose any MCP server as a secure OpenAPI-compatible REST API instantly.
4.3kMIT
A simple, secure MCP-to-OpenAPI proxy server
Pros
- +Instant conversion of MCP tools to OpenAPI endpoints
- +Auto-generates interactive API docs
- +Supports stdio, SSE, and streamable HTTP MCP servers
- +Includes API key and OAuth 2.1 authentication
Cons
- −Requires running a separate proxy server
- −May introduce slight latency overhead
- −Limited to tools exposed via MCP protocol
Target audience: Developers integrating MCP-based tools into OpenAPI-compatible platforms like Open WebUI.
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