Changelog

Organizations on the Free plan now use Retool-provided AI models for app building. These models, prefixed with Retool, have been tuned by Retool for enhanced performance and speed for app building. Access to models from other providers is now only available on paid plans.

Builders using these models will notice comparable quality and faster speeds when compared with other models previously available on the Free plan.

The following Retool-provided models are supported:

• Retool Mini
• Retool Power

Retool now supports using external MCPs as resources in the app builder. The app building agent creates function calls to utilize tools from your connected MCP servers, which can be used while building or at app runtime. For example:

Users of the published app can only trigger MCP tools for which they have permission.

The Retool CLI is now available in public beta. It enables you to build, manage, and publish Retool-native React apps from the command line and with the help of your chosen code development agent harness, like Claude Code or Codex.

With this tool, you can write and validate app code directly on your machine. You can use the CLI independently or pair it with a local development agent. Follow the installation instructions to get started, learn how the CLI works, or compare the CLI to the MCP.

Retool 4.62 is now available on the Edge release channel for self-hosted organizations.

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

• Retool 4.34.4
• Retool 4.0.17

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

You can now embed apps in other apps, in classic apps, and in apps or websites outside Retool using an iframe. To enable app embedding, an organization admin adds Content Security Policy directive rules that name the pages that are allowed to frame your app.

Refer to the Embed apps guide to learn how.

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

• Retool 4.34.3
• Retool 4.0.16

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

Retool 4.58 is now available on the Edge release channel for self-hosted organizations.

Self-hosted organizations can store and retrieve secrets from Azure Key Vault. Configure a vault in Settings > Secrets Manager.

Retool now supports the following new AI models:

• GPT 5.4 Mini through OpenAI for AI resource queries.
• GPT 5.4 Nano through OpenAI for AI resource queries.
• GPT 6 Astra through OpenAI for AI resource queries.
• Claude Fable 5.1 through Anthropic and Amazon Bedrock for AI resource queries.
• Gemini 3.8 Flash through Google and Google Vertex AI for AI resource queries.