List Blocks For Agent

get/v1/agents/{agent_id}/core-memory/blocks

Retrieve the core memory blocks of a specific agent.

Path ParametersExpand Collapse

agent_id: string

The ID of the agent in the format 'agent-'

minLength42

maxLength42

Query ParametersExpand Collapse

after: optional string

Block ID cursor for pagination. Returns blocks that come after this block ID in the specified sort order

before: optional string

Block ID cursor for pagination. Returns blocks that come before this block ID in the specified sort order

limit: optional number

Maximum number of blocks to return

order: optional "asc" or "desc"

Sort order for blocks by creation time. 'asc' for oldest first, 'desc' for newest first

Accepts one of the following:

"asc"

"desc"

order_by: optional "created_at"

Field to sort by

Accepts one of the following:

"created_at"

ReturnsExpand Collapse

id: string

The id of the block.

value: string

Value of the block.

Deprecatedbase_template_id: optional string

(Deprecated) The base template id of the block.

created_by_id: optional string

The id of the user that made this Block.

Deprecateddeployment_id: optional string

(Deprecated) The id of the deployment.

description: optional string

Description of the block.

Deprecatedentity_id: optional string

(Deprecated) The id of the entity within the template.

Deprecatedhidden: optional boolean

(Deprecated) If set to True, the block will be hidden.

is_template: optional boolean

Whether the block is a template (e.g. saved human/persona options).

label: optional string

Label of the block (e.g. 'human', 'persona') in the context window.

last_updated_by_id: optional string

The id of the user that last updated this Block.

limit: optional number

Character limit of the block.

metadata: optional map[unknown]

Metadata of the block.

Deprecatedpreserve_on_migration: optional boolean

(Deprecated) Preserve the block on template migration.

project_id: optional string

The associated project id.

Deprecatedread_only: optional boolean

(Deprecated) Whether the agent has read-only access to the block.

Deprecatedtemplate_id: optional string

(Deprecated) The id of the template.

Deprecatedtemplate_name: optional string

(Deprecated) The name of the block template (if it is a template).

List Blocks For Agent

curl https://api.letta.com/v1/agents/$AGENT_ID/core-memory/blocks \
    -H "Authorization: Bearer $LETTA_API_KEY"

[
  {
    "id": "id",
    "value": "value",
    "base_template_id": "base_template_id",
    "created_by_id": "created_by_id",
    "deployment_id": "deployment_id",
    "description": "description",
    "entity_id": "entity_id",
    "hidden": true,
    "is_template": true,
    "label": "label",
    "last_updated_by_id": "last_updated_by_id",
    "limit": 0,
    "metadata": {
      "foo": "bar"
    },
    "preserve_on_migration": true,
    "project_id": "project_id",
    "read_only": true,
    "template_id": "template_id",
    "template_name": "template_name"
  }
]

Returns Examples

[
  {
    "id": "id",
    "value": "value",
    "base_template_id": "base_template_id",
    "created_by_id": "created_by_id",
    "deployment_id": "deployment_id",
    "description": "description",
    "entity_id": "entity_id",
    "hidden": true,
    "is_template": true,
    "label": "label",
    "last_updated_by_id": "last_updated_by_id",
    "limit": 0,
    "metadata": {
      "foo": "bar"
    },
    "preserve_on_migration": true,
    "project_id": "project_id",
    "read_only": true,
    "template_id": "template_id",
    "template_name": "template_name"
  }
]