Letta

Platform for stateful agents with self-editing memory

About the tool

Platform for stateful agents with self-editing memory

Letta, formerly known as MemGPT, builds agents whose memory, identity, and capabilities persist and evolve across sessions using hierarchical memory management. The Apache-2.0 project is developed by an AI research lab that also offers hosted cloud and desktop clients.

Pricing: Open source
Category: Agent frameworks
Maker: Not publicly supplied
Provenance: Indexed by Attest from public information

Backlink artifact

Show the Attested badge.

This badge links to the public evidence record. The link is followed; the verification claim remains limited to the checks shown above.

Embed HTML

<a href="https://getattest.com.au/t/letta"><img src="https://getattest.com.au/badge/letta" alt="Attested — verified by Attest"></a>

Same category

Similar verified tools.

✓ Attested

Agent frameworksOpen source

PraisonAI

Low-code multi-agent framework with handoffs and workflow patterns

Verified 25 Aug 2026 · Indexed by Attest

✓ Attested

Agent frameworksOpen source

VoltAgent

Open-source TypeScript agent framework with observability console

Verified 25 Aug 2026 · Indexed by Attest

✓ Attested

Agent frameworksOpen source

CopilotKit

Frontend stack for agentic applications and generative UI

Verified 25 Aug 2026 · Indexed by Attest