The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Clawfetch MCP listing page.
MCP (Model Context Protocol) server for ClawFetch — Web Intelligence API for AI Agents.
Gives any MCP-compatible client (Claude Desktop, Cursor, Windsurf, OpenClaw, etc.) instant access to ClawFetch's web intelligence tools: fetch pages as markdown, render JS-heavy SPAs, extract structured data from 17+ site types, research topics multi-source, and check domain availability.
Payments are handled automatically via the x402 protocol — USDC on Base. No API keys, no billing dashboards.
The public hosted MCP endpoint is retired and returns HTTP 410 Gone. Run the MCP locally using the setup below, or call https://api.clawfetch.ai directly. Paid tool calls use your own USDC-funded wallet on Base; ClawFetch does not subsidize requests.
Run your own instance with full control over the payment wallet.
Add to your MCP client config (e.g., Claude Desktop):
The private key signs x402 micropayments (USDC on Base). Fund the corresponding address with USDC on Base mainnet.
Expose the MCP server over HTTP for remote clients:
This starts a server at http://localhost:3001/mcp using the Streamable HTTP transport (MCP spec compliant).
| Endpoint | Method | Description |
|---|---|---|
/mcp | POST | Initialize session — returns Mcp-Session-Id header |
/mcp | GET | SSE stream for server-to-client notifications (requires session ID) |
/mcp | DELETE | Close a session |
/health | GET | Server health check (JSON) |
POST /mcp with JSON-RPC initialize request → get Mcp-Session-Id headerPOST /mcp with Mcp-Session-Id header + JSON-RPC tools/call requestGET /mcp?sessionId=... for SSE notifications (optional)DELETE /mcp with Mcp-Session-Id header| Tool | Description | Cost |
|---|---|---|
fetch_url | Fetch any URL as clean markdown | $0.001 |
render_page | Render JS-heavy pages (SPAs, React apps) | $0.005 |
extract_data | Extract structured data from 17+ site types | $0.008 |
research_topic | Multi-source research with citations | $0.02 |
check_domains | Check domain name availability | $0.003 |
suggest_domains | Generate available domain suggestions | $0.003 |
parse_document | Parse office docs (docx/pptx/xlsx/pdf/…) to markdown | $0.005 |
list_extractors | List supported structured data extractors | $0.001 |
health_check | Check API health status | Free |
wallet_info | Show payment wallet address | Free |
GitHub repos/profiles, npm packages, PyPI packages, Twitter/X profiles, LinkedIn profiles/companies, YouTube videos/channels, Product Hunt, Hacker News, Reddit, Crunchbase, Wikipedia, and more.
Use list_extractors to see all available types with their schema.
| Variable | Required | Default | Description |
|---|---|---|---|
CLAWFETCH_PRIVATE_KEY | Yes* | — | Ethereum private key (0x-prefixed) for x402 payments |
CLAWFETCH_BASE_URL | No | https://api.clawfetch.ai | API base URL |
CLAWFETCH_TRANSPORT | No | stdio | Transport: stdio or http |
CLAWFETCH_HOST | No | 0.0.0.0 | HTTP server bind address |
CLAWFETCH_PORT | No | 3001 | HTTP server port |
CLAWFETCH_TIMEOUT_MS | No | 60000 | Request timeout in ms |
CLAWFETCH_DEBUG | No | false | Enable debug logging (1 or true) |
* Required. Keep this key in your local configuration; never submit it to the ClawFetch website.
MIT