Changelog

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.

A new AI-powered app builder is now available to cloud instances. Build production-ready React apps using natural language in the app builder or through your favorite coding agent via MCP. Whatever or however you build, everything inherits the security standards your organization has already approved and implemented.

The app builder includes:

• A Chat tab where you describe changes in natural language and an AI agent plans and executes them, with file uploads and per-thread model selection.
• A Data tab that shows the resources connected to your app and the functions that interact with them, with optional approval gates on writes.
• A Code tab that lets you view and edit every file your app uses.
• Support for organization themes, third-party npm packages, and publishing and version history.

Apps run on React 19 and a curated set of supporting libraries.

Retool 3.396 is now available on the Edge release channel for self-hosted organizations.

The following patches are now available on the Stable release channel:

• Retool 3.334.16
• Retool 3.300.31

Update your Retool instance to apply the latest bug fixes and security patches.

The following patches are now available on the Stable release channel:

• Retool 3.334.15
• Retool 3.334.14
• Retool 3.300.30

Update your Retool instance to apply the latest bug fixes and security patches.

Retool 3.391 is now available on the Edge release channel for self-hosted organizations.

Organization admins in the admin space can now view audit logs from all spaces on the same instance directly from the Audit logs page. Use the Space filter to view events from a specific child space, or select all spaces to view events from every space at once. When viewing events across spaces, each entry includes a tag indicating which space it belongs to.

Users in child spaces continue to see events from their own space only, and downloads remain scoped to the current space.

For more information, refer to View audit logs across spaces.

The following patches are now available on the Stable release channel:

• Retool 3.334.13
• Retool 3.300.29

Update your Retool instance to apply the latest bug fixes and security patches.

Retool 3.387 is now available on the Edge release channel for self-hosted organizations.

The new Analytics page gives you visibility into workflow health and activity across your organization.

From the workflows landing page, select Analytics to access two views:

• All workflows: Aggregate run counts, failure rates, and resource consumption across every workflow in your organization. Includes a ranked list of your most-run workflows, a Top problem workflows table that surfaces workflows with high failure rates, and resource consumption data for the current month.
• Individual workflow: Drill into a single workflow to review summary stats, run and latency breakdown charts, resource consumption, and a paginated list of recent runs with per-run status and duration.