Google Cloud API Gateway can now turn REST APIs into MCP tools
Google Cloud API Gateway now supports acting as a remote MCP server in Public Preview. By annotating an existing OpenAPI spec (x-google-api-management.mcp and x-google-mcp-tool), teams can expose their current REST operations as agent-ready MCP tools without building or hosting a separate MCP server. Existing authentication (JWT/API key), quotas, and logging continue to apply unchanged since MCP and REST traffic share one policy path.