x402serps logox402serps

Web search in Claude Desktop with x402serps

Claude Desktop connects to remote MCP servers as custom connectors (Settings \u2192 Connectors). Custom request headers are not available on every plan, so the dependable route is the mcp-remote bridge in claude_desktop_config.json, which lets you send the trial header or your key.

Option A: custom connector

  1. Open Settings → Connectors → Add custom connector.
  2. Name: x402serps, URL: https://x402serps.com/api/mcp.
  3. If your plan shows Request headers, add Authorization = Bearer xs_YOUR_KEY. If it doesn't, use option B.

Option B: mcp-remote (free trial)

Edit claude_desktop_config.json (Settings → Developer → Edit Config). Needs Node.js.

{
  "mcpServers": {
    "x402serps": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://x402serps.com/api/mcp",
        "--header",
        "X-Trial:1"
      ]
    }
  }
}

Option B with card credits

Keep the header argument free of spaces and put the value in env:

{
  "mcpServers": {
    "x402serps": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://x402serps.com/api/mcp",
        "--header",
        "Authorization:${AUTH_HEADER}"
      ],
      "env": {
        "AUTH_HEADER": "Bearer xs_YOUR_KEY"
      }
    }
  }
}

Fully quit and restart Claude Desktop, then check the tools icon in a new chat.

Pay per call with x402 instead: tool calls without a trial header or key return the x402 payment requirements, which an x402-aware client can pay in USDC on Base or Solana. Search is $0.004 a call. Buy a credit key on the pricing page.

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