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Changelog

Updates, changes, and improvements at Retool.

Refer to the stable and edge release notes for detailed information about self-hosted releases.

Build apps via MCP

App building with the MCP server is available in cloud instances. It will be available in upcoming stable and edge releases.

Builders on cloud instances can now use Retool's MCP server to build apps. Apps are built using React and use Retool's updated app builder. Connect the MCP server to Claude, ChatGPT, Codex, Cursor, Kiro, or another agentic coding environment, and describe the app you want to build. Retool's building agent generates the app and returns a preview link. Publish and manage the app from the app builder.

Beyond initial generation, you can also use the MCP server to:

  • Continue building or iterating on an existing app.
  • Monitor active builds and view past agent activity.
  • Review function runs that require human approval.
  • Inspect or read the files of an existing app.
  • Cancel a failed or in-progress build.

App building tools require the user to be a builder, and the builder must authorize the mcp:write scope. Refer to the tools reference for the full list.

Using the MCP server to build classic apps is not supported.