MCP server that bridges Claude Desktop (or any MCP-compatible client) to the pay-per-call utility endpoints on utilsforagents.com using the x402 payment protocol.

Tools

Tool	Endpoint	Description
`json-diff`	POST /v1/diff	Structural JSON diff (RFC 6902)
`exif-summary`	POST /v1/image/exif-summary	Extract EXIF metadata from JPEG
`scrub-metadata`	POST /v1/image/scrub-metadata	Strip metadata from JPEG/PNG
`html-to-markdown`	POST /v1/html/to-markdown	Convert HTML string to Markdown
`fetch-markdown`	POST /v1/html/fetch-markdown	Fetch URL and convert to Markdown
`fetch-content`	POST /v1/text/fetch-content	Fetch URL, auto-detect format, return Markdown
`url-metadata`	POST /v1/url/metadata	Extract Open Graph, Twitter Card, meta tags

Each call costs $0.003 USDC on Base, paid automatically via x402.

Prerequisites

Node.js v20+
An Ethereum wallet private key with USDC on Base (mainnet)

Quick start

npx utilsforagents-mcp

Claude Desktop configuration

Add to your Claude Desktop MCP config (claude_desktop_config.json):

{
  "mcpServers": {
    "utilsforagents": {
      "command": "npx",
      "args": ["utilsforagents-mcp"],
      "env": {
        "EVM_PRIVATE_KEY": "0x..."
      }
    }
  }
}