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httpmon’s MCP server works with any MCP-compatible client. Below are configuration snippets for popular tools.
Start httpmon with --mcp before connecting a client. Print the bearer token with httpmon --mcp-token.

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Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS): 
{
  "mcpServers": {
    "httpmon": {
      "url": "http://127.0.0.1:9551/mcp",
      "headers": {
        "Authorization": "Bearer <token>"
      }
    }
  }
}
Replace <token> with the output of httpmon --mcp-token.

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Cursor

Add to your Cursor MCP settings (.cursor/mcp.json in your project root): 
{
  "mcpServers": {
    "httpmon": {
      "url": "http://127.0.0.1:9551/mcp",
      "headers": {
        "Authorization": "Bearer <token>"
      }
    }
  }
}

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Claude Code

Add the server from the command line: 
claude mcp add httpmon \
  --transport http \
  --url http://127.0.0.1:9551/mcp \
  --header "Authorization: Bearer $(httpmon --mcp-token)"
Or add it to .claude/settings.json: 
{
  "mcpServers": {
    "httpmon": {
      "type": "http",
      "url": "http://127.0.0.1:9551/mcp",
      "headers": {
        "Authorization": "Bearer <token>"
      }
    }
  }
}

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Verifying the connection

Once connected, ask your agent to list captured requests:
“List the last 5 HTTP requests captured by httpmon”
The agent will call list_requests and return the results. If authentication fails, verify the token matches the output of httpmon --mcp-token.

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Use cases

  • Debug API integrations — Ask an agent to inspect response headers or body content
  • Replay and compare — Have an agent replay a request and diff the results
  • Automate testing — Script mock responses and throttling via the agent
  • Export for analysis — Ask the agent to export traffic as HAR for external tools