Configure MCP Servers in OpenClaw

// Add an MCP server in openclaw.json
{
  mcp: {
    servers: {
      github: {
        command: "npx",
        args: ["-y", "@modelcontextprotocol/server-github"],
        env: {
          GITHUB_PERSONAL_ACCESS_TOKEN: {
            source: "env",
            provider: "default",
            id: "MCP_GITHUB_PAT"
          }
        }
      }
    }
  }
}