Letta MCP Server

MIT License

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create_memory_block

Generate a new memory block in the Letta system, assigning a label, name, content, and optional metadata. Supports agent-specific memory allocation for organized data management.

Instructions

Create a new memory block in the Letta system

Input Schema

Name	Required	Description
`agent_id`	No	Optional agent ID to create the block for a specific agent
`label`	Yes	Label for the memory block (e.g., "persona", "human", "system")
`metadata`	No	Optional metadata for the memory block
`name`	Yes	Name of the memory block
`value`	Yes	Content of the memory block

Input Schema (JSON Schema)

{
  "properties": {
    "agent_id": {
      "description": "Optional agent ID to create the block for a specific agent",
      "type": "string"
    },
    "label": {
      "description": "Label for the memory block (e.g., \"persona\", \"human\", \"system\")",
      "type": "string"
    },
    "metadata": {
      "description": "Optional metadata for the memory block",
      "type": "object"
    },
    "name": {
      "description": "Name of the memory block",
      "type": "string"
    },
    "value": {
      "description": "Content of the memory block",
      "type": "string"
    }
  },
  "required": [
    "name",
    "label",
    "value"
  ],
  "type": "object"
}

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