Install Cost Guard MCP for Claude Desktop

Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.

Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
Paste the JSON config below.
Replace placeholder secrets, then restart the client if it does not reload on its own.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcpsmiths-cost-guard-mcp": {
      "command": "uvx",
      "args": [
        "cost-guard-mcp"
      ],
      "env": {
        "GOOGLE_APPLICATION_CREDENTIALS": "YOUR_GOOGLE_APPLICATION_CREDENTIALS",
        "SNOWFLAKE_ACCOUNT": "",
        "SNOWFLAKE_USER": "",
        "SNOWFLAKE_ROLE": "",
        "SNOWFLAKE_SECONDARY_ROLES": "",
        "SNOWFLAKE_PRIVATE_KEY_PATH": "YOUR_SNOWFLAKE_PRIVATE_KEY_PATH",
        "SNOWFLAKE_PRIVATE_KEY_PASSPHRASE": "YOUR_SNOWFLAKE_PRIVATE_KEY_PASSPHRASE",
        "SNOWFLAKE_PASSWORD": "YOUR_SNOWFLAKE_PASSWORD",
        "SNOWFLAKE_EDITION": "",
        "DATABRICKS_SERVER_HOSTNAME": "",
        "DATABRICKS_HTTP_PATH": "",
        "DATABRICKS_TOKEN": "YOUR_DATABRICKS_TOKEN",
        "DATABRICKS_CLIENT_ID": "",
        "DATABRICKS_CLIENT_SECRET": "YOUR_DATABRICKS_CLIENT_SECRET",
        "COST_GUARD_ALLOW_MULTI_STATEMENT_SQL": "",
        "COST_GUARD_ALLOW_WRITE_STATEMENTS": "",
        "COST_GUARD_MAX_IN_FLIGHT_QUERIES": "",
        "COST_GUARD_DATABRICKS_ALLOW_WAREHOUSE_START": "",
        "COST_GUARD_SNOWFLAKE_ALLOW_WAREHOUSE_RESUME": ""
      }
    }
  }
}

Official Claude Desktop docs

Install Cost Guard MCP for Claude Desktop | MCPpedia