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Letta integration

Letta is the platform for building stateful agents: open AI with advanced memory that can learn and self-improve over time.

Start building Use Letta with your AI
Actions
4
Triggers
2
Auth
Custom auth
License
MIT, open source
Updated
August 2026

About the Letta integration

Add the Letta piece to a flow, connect your account once, and the rest of the builder can read from it and write to it. Because the piece is open source you can run it on our cloud or self-host it, and combine Letta with 760+ other apps in the same flow.

Triggers

Start a flow the moment something happens in Letta

Each trigger below can start a flow on its own, either instantly or on a schedule.

  • New Agent

    Triggers when a new agent is created

  • New Message

    Triggers when an agent uses send_message

    1 field

Actions

Everything Activepieces can do in Letta

Drop any of these into a flow and fill in the fields. No code is required.

  • Create Agent From Template

    Creates an agent from a template

    7 fields

  • Create Identity

    Creates a Letta identity

    5 fields

  • Send Message to Agent

    Send message to an agent

    3 fields

  • Get Identities

    Searches for identities in your Letta Project

    5 fields

Use Letta in a flow

Connect Letta once and every trigger and action above is yours to drop into the builder, alongside 760+ other apps. Free to start, on our cloud or your own servers.

Build a Letta flowTalk to sales

Letta, answered.

Yes. Activepieces is open source and free to start, and the Letta piece is included on every plan, from the free cloud tier to any self-hosted deployment.

Add the Letta piece to a flow, then authenticate with Custom auth. Once connected, its 2 triggers and 4 actions are available anywhere in the builder.

"New Agent" can start a flow that runs "Create Agent From Template", and you can chain Letta together with any of 760+ other apps and AI steps in between.

Yes. Activepieces is fully self-hostable, so you can run the Letta piece on your own infrastructure with your connections and your data staying in your environment.

Yes. Every piece you connect can be exposed over one Activepieces MCP server, so Claude, Cursor, Windsurf or any MCP client can call Letta actions as tools.

Guides using Letta

Letta automation Read our quick guide on Letta automation. Discover how it works, explore common use cases, and learn how Activepieces can help.

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