Search the web without API keys via DuckDuckGo MCP

{
  "server": "duckduckgo-mcp",
  "version": "1.0.1",
  "transport": "stdio",
  "launcher": "npx -y duckduckgo-mcp",
  "handshake": {
    "initialize": {
      "request": {
        "jsonrpc": "2.0",
        "id": 1,
        "method": "initialize",
        "params": {
          "protocolVersion": "2024-11-05",
          "capabilities": {},
          "clientInfo": {
            "name": "pathfinder",
            "version": "1.0.0"
          }
        }
      },
      "response": {
        "protocolVersion": "2024-11-05",
        "capabilities": {
          "tools": {
            "listChanged": true
          }
        },
        "serverInfo": {
          "name": "duckduckgo",
          "version": "1.0.1"
        }
      }
    },
    "tools_list": {
      "tools": [
        {
          "name": "search",
          "description": "Search DuckDuckGo HTML results and return title, URL, and snippet.",
          "inputSchema": {
            "properties": {
              "query": {
                "type": "string"
              },
              "max_results": {
                "default": 5,
                "type": "integer",
                "exclusiveMinimum": 0,
                "maximum": 15
              }
            }
          }
        }
      ]
    }
  },
  "tool_call": {
    "request": {
      "method": "tools/call",
      "params": {
        "name": "search",
        "arguments": {
          "query": "MCP model context protocol specification",
          "max_results": 3
        }
      }
    },
    "response_sample": [
      {
        "title": "Specification - Model Context Protocol",
        "url": "https://modelcontextprotocol.io/specification/2025-03-26",
        "snippet": "Model Context Protocol (MCP) is an open protocol that enables seamless integration between LLM applications and external data sources and tools."
      },
      {
        "title": "Overview - Model Context Protocol",
        "url": "https://modelcontextprotocol.io/specification/2025-11-25/basic",
        "snippet": "Auth MCP provides an Authorization framework for use with HTTP."
      },
      {
        "title": "Model Context Protocol (MCP)",
        "url": "https://github.com/modelcontextprotocol/modelcontextprotocol",
        "snippet": "This repo contains the MCP specification, protocol schema, and official documentation."
      }
    ]
  },
  "executed_at": "2026-06-10T09:10:00Z",
  "environment": "macOS Darwin 25.4.0, Node.js"
}