How do I install Clawfetch?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Clawfetch need an API key?

The publisher lists these environment variables: CLAWFETCH_PRIVATE_KEY.

What transport does Clawfetch use?

Clawfetch runs locally over stdio.

When was Clawfetch last checked?

Last checked 2026-11-07. Web intelligence for AI agents: fetch, render, extract, research. x402 micropayments, no API keys.

Clawfetch MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

npx -y @clawfetch/[email protected]

Credentials from the publisher

CLAWFETCH_PRIVATE_KEY — EVM private key for a Base wallet holding USDC (pays x402 micropayments gaslessly)

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1CLAWFETCH_PRIVATE_KEY=<secret> claude mcp add ai.clawfetch-mcp -- npx -y @clawfetch/mcp@0.4.0

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "ai.clawfetch-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "@clawfetch/[email protected]"8      ],9      "env": {10        "CLAWFETCH_PRIVATE_KEY": "<secret>"11      }12    }13  }14}

claude_desktop_config.json

Local · npmPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version: 0.4.0
API key

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

@clawfetch/mcp

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). By default it binds to 127.0.0.1 and accepts only loopback Host headers, which blocks DNS-rebinding attacks from web pages. To serve remote clients, set CLAWFETCH_HOST=0.0.0.0 and list your public hostnames in CLAWFETCH_ALLOWED_HOSTS.

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	`127.0.0.1`	HTTP server bind address
`CLAWFETCH_ALLOWED_HOSTS`	No	`localhost,127.0.0.1,[::1]`	Comma-separated `Host` header allowlist for the HTTP transport (DNS-rebinding protection)
`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.

Development

git clone https://github.com/clawfetch/clawfetch-mcp.git
cd clawfetch-mcp
npm install
npm run build
npm test

License

MIT

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Clawfetch?

Does Clawfetch need an API key?

What transport does Clawfetch use?

When was Clawfetch last checked?

Documentation

@clawfetch/mcp

Access and payment

💻 Self-Hosted Mode

Install

Configure (stdio — for local MCP clients)

Run as HTTP Server

HTTP Endpoints

Session Flow

Tools

Supported Extractors

Environment Variables

Development

License