Mcp

Name: Mcp
Author: LLM Mart

No install snippet on purpose. A working MCP config is a command, its arguments and an environment block — the last two are where API keys live, so this catalogue never stores them and cannot publish them. Follow the link above for the authors' own instructions.

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.

Access and payment

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.

💻 Self-Hosted Mode

Run your own instance with full control over the payment wallet.

Install

npm install -g @clawfetch/mcp

Configure (stdio — for local MCP clients)

Add to your MCP client config (e.g., Claude Desktop):

{
  "mcpServers": {
    "clawfetch": {
      "command": "clawfetch-mcp",
      "env": {
        "CLAWFETCH_PRIVATE_KEY": "0xYOUR_ETHEREUM_PRIVATE_KEY"
      }
    }
  }
}

The private key signs x402 micropayments (USDC on Base). Fund the corresponding address with USDC on Base mainnet.

Run as HTTP Server

Expose the MCP server over HTTP for remote clients:

CLAWFETCH_PRIVATE_KEY=0x... CLAWFETCH_TRANSPORT=http CLAWFETCH_PORT=3001 clawfetch-mcp

This starts a server at http://localhost:3001/mcp using the Streamable HTTP transport (MCP spec compliant).

HTTP Endpoints

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)

Session Flow

Initialize: POST /mcp with JSON-RPC initialize request → get Mcp-Session-Id header
Call tools: POST /mcp with Mcp-Session-Id header + JSON-RPC tools/call request
Stream: GET /mcp?sessionId=... for SSE notifications (optional)
Close: DELETE /mcp with Mcp-Session-Id header

Tools

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

Supported Extractors

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.

Environment Variables

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`)