Use external MCPs in app builder

BetaSep 28, 20265 days agoUnverifiedAdded Oct 2, 2026

Live on cloud • All plans Public beta 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.

Topics: AI agents, MCP, Security, Pricing, BI

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Date	Release	Type
Sep 285 days ago	Changes to available AI models on the Free plan unverified Update	Update
Sep 303 days ago	Self-hosted Retool 4.34 and 4.0 stable updates unverified Update	Update
Sep 303 days ago	Retool 4.66 Edge for self-hosted instances unverified Update	Update
Sep 303 days ago	Conclusion of public beta for Assist unverified Beta	Beta
Sep 303 days ago	Deprecation of Retool Email for organizations on the Free plan unverified Deprecation	Deprecation
Sep 303 days ago	Deprecation of preinstalled libraries in custom authentication JavaScript steps unverified Deprecation	Deprecation
Sep 303 days ago	Deprecation of Windows Authentication for Microsoft SQL Server resources unverified Deprecation	Deprecation
Sep 303 days ago	Continued hardening of Retool's infrastructure unverified Update	Update

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Also shipped on Sep 28, 2026

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