March 12, 2025

Identity Support for Memory Blocks

Memory blocks can now be associated with specific identities, allowing for better organization and retrieval of contextual information about various entities in your agent’s knowledge base.

Adding Blocks to an Identity

1 from letta_client import Letta, CreateBlock
2 client = Letta(
3    token="YOUR_API_KEY",
4 )
5 client.agents.identities.modify(
6    identity_id="IDENTITY_ID",
7    block_ids=["BLOCK_ID"],
8 )

Querying Blocks by Identity

1 from letta_client import Letta
2 client = Letta(
3    token="YOUR_API_KEY",
4 )
5 client.agents.blocks.list(
6    identity_id="IDENTITY_ID",
7 )