---
title: "Letta"
description: "Letta as a MainSDK driver for memory. Pick it in main.yaml; your calls stay the same."
section: "integrations"
canonical: "https://mainsdk.dev/docs/integrations/letta"
updated: "2026-10-28"
---

# Letta

> Letta as a MainSDK driver for memory. Pick it in main.yaml; your calls stay the same.

Canonical: https://mainsdk.dev/docs/integrations/letta · Updated: 2026-10-28

Letta as a MainSDK driver for memory. Pick it in main.yaml; your calls stay the same.

## Interfaces it serves

### Agent memory (`memory`)

- Status: Building for 0.4 · ships as a experimental API
- Driver: `letta` (Letta)
- Docs: https://mainsdk.dev/docs/interfaces/memory.md

```yaml
memory:
  driver: letta
```

Swap to another provider: `db`, `local`, `mem0`, `zep`, `pinecone`, `mcp`.