Check browser compatibility for any web feature via caniuse-mcp (npx)

{
  "server": "[email protected]",
  "transport": "stdio",
  "launch": "npx -y [email protected]",
  "protocol_version": "2024-11-05",
  "handshake": {
    "initialize": {
      "request": {
        "jsonrpc": "2.0",
        "id": 1,
        "method": "initialize",
        "params": {
          "protocolVersion": "2024-11-05",
          "capabilities": {},
          "clientInfo": {
            "name": "pathfinder",
            "version": "1.0.0"
          }
        }
      },
      "response": {
        "result": {
          "protocolVersion": "2024-11-05",
          "capabilities": {
            "tools": {},
            "logging": {},
            "completions": {}
          },
          "serverInfo": {
            "name": "caniuse-mcp",
            "version": "1.0.0"
          }
        }
      }
    },
    "tools_list": {
      "request": {
        "jsonrpc": "2.0",
        "id": 2,
        "method": "tools/list",
        "params": {}
      },
      "tool_count": 3,
      "tools": ["caniuse_feature", "browserslist_compatibility_check", "list_tools"]
    }
  },
  "calls": [
    {
      "method": "tools/call",
      "tool": "caniuse_feature",
      "args": {
        "feature": "container-queries"
      },
      "result_summary": "12 entries returned from caniuse, web-features, and MDN sources. CSS Container Queries (Size): Chrome 106+, Firefox 110+, Safari 16.0+, Edge 106+. CSS Container Style Queries: Chrome 111+ (partial, custom properties only), Firefox 151+, Safari 18.0+ (partial).",
      "status": "success"
    },
    {
      "method": "tools/call",
      "tool": "browserslist_compatibility_check",
      "args": {
        "feature": "css-grid",
        "browserslistQuery": "> 1%, last 2 versions, not dead"
      },
      "result_summary": "45KB response. Target browsers: and_chr 148, chrome 118/147+, ios_saf 18.5+, edge 147-149, firefox 150-151, safari 26.3-26.4, samsung 29-30, op_mob 80, and_uc 15.5, opera 127/131. CSS Grid fully supported across all targets.",
      "status": "success"
    }
  ]
}