Bun Fetch

MCP server that fetches web content, converts HTML to Markdown, and processes it with Claude AI. This is meant to be a replacement for Claude's default WebFetch, that seems to get regularly blocked from servers. This works around that by not identifying itself as Claude.

Requirements

• Bun
• Claude CLI (authenticated)

Configuration

No installation required. The MCP configurations below use bunx to run the package directly from GitHub.

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "fetch": {
      "command": "bunx",
      "args": ["github:ScottPierce/mcp-bun-fetch#v1"]
    }
  }
}

Claude Code

Run the following command:

claude mcp add fetch -- bunx github:ScottPierce/mcp-bun-fetch#v1

Local Development

Run without building:

bun run index.ts

Run tests:

bun test

Build:

bun run build

Local Installation

To use a local build instead of a published package:

{
  "mcpServers": {
    "fetch": {
      "command": "bun",
      "args": ["/absolute/path/to/mcp-fetch/dist/index.js"]
    }
  }
}

Tool

fetch

Fetches a URL, converts HTML to Markdown, and processes with Claude.

Parameters:

• url (required): URL to fetch
• prompt (required): What to extract or analyze from the page