Letta · Schema

Conversation

Represents a conversation on an agent for concurrent messaging.

AIAgentsStateful AgentsMemoryMemGPTContinual LearningMCPMulti-AgentRAGOpen Source

Properties

Name	Type	Description
created_by_id	object	The id of the user that made this object.
last_updated_by_id	object	The id of the user that made this object.
created_at	object	The timestamp when the object was created.
updated_at	object	The timestamp when the object was last updated.
id	string	The unique identifier of the conversation.
agent_id	string	The ID of the agent this conversation belongs to.
summary	object	A summary of the conversation.
in_context_message_ids	array	The IDs of in-context messages for the conversation.
isolated_block_ids	array	IDs of blocks that are isolated (specific to this conversation, overriding agent defaults).
model	object	The model handle for this conversation (overrides agent's model). Format: provider/model-name.
model_settings	object	The model settings for this conversation (overrides agent's model settings).
last_message_at	object	Timestamp of the most recent message request sent to this conversation.

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/Conversation",
  "title": "Conversation",
  "properties": {
    "created_by_id": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Created By Id",
      "description": "The id of the user that made this object."
    },
    "last_updated_by_id": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Last Updated By Id",
      "description": "The id of the user that made this object."
    },
    "created_at": {
      "anyOf": [
        {
          "type": "string",
          "format": "date-time"
        },
        {
          "type": "null"
        }
      ],
      "title": "Created At",
      "description": "The timestamp when the object was created."
    },
    "updated_at": {
      "anyOf": [
        {
          "type": "string",
          "format": "date-time"
        },
        {
          "type": "null"
        }
      ],
      "title": "Updated At",
      "description": "The timestamp when the object was last updated."
    },
    "id": {
      "type": "string",
      "title": "Id",
      "description": "The unique identifier of the conversation."
    },
    "agent_id": {
      "type": "string",
      "title": "Agent Id",
      "description": "The ID of the agent this conversation belongs to."
    },
    "summary": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Summary",
      "description": "A summary of the conversation."
    },
    "in_context_message_ids": {
      "items": {
        "type": "string"
      },
      "type": "array",
      "title": "In Context Message Ids",
      "description": "The IDs of in-context messages for the conversation."
    },
    "isolated_block_ids": {
      "items": {
        "type": "string"
      },
      "type": "array",
      "title": "Isolated Block Ids",
      "description": "IDs of blocks that are isolated (specific to this conversation, overriding agent defaults)."
    },
    "model": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Model",
      "description": "The model handle for this conversation (overrides agent's model). Format: provider/model-name."
    },
    "model_settings": {
      "anyOf": [
        {
          "oneOf": [
            {
              "$ref": "#/components/schemas/OpenAIModelSettings"
            },
            {
              "$ref": "#/components/schemas/SGLangModelSettings"
            },
            {
              "$ref": "#/components/schemas/AnthropicModelSettings"
            },
            {
              "$ref": "#/components/schemas/GoogleAIModelSettings"
            },
            {
              "$ref": "#/components/schemas/GoogleVertexModelSettings"
            },
            {
              "$ref": "#/components/schemas/AzureModelSettings"
            },
            {
              "$ref": "#/components/schemas/XAIModelSettings"
            },
            {
              "$ref": "#/components/schemas/ZAIModelSettings"
            },
            {
              "$ref": "#/components/schemas/GroqModelSettings"
            },
            {
              "$ref": "#/components/schemas/DeepseekModelSettings"
            },
            {
              "$ref": "#/components/schemas/TogetherModelSettings"
            },
            {
              "$ref": "#/components/schemas/BedrockModelSettings"
            },
            {
              "$ref": "#/components/schemas/BasetenModelSettings"
            },
            {
              "$ref": "#/components/schemas/OpenRouterModelSettings"
            },
            {
              "$ref": "#/components/schemas/ChatGPTOAuthModelSettings"
            }
          ],
          "discriminator": {
            "propertyName": "provider_type",
            "mapping": {
              "anthropic": "#/components/schemas/AnthropicModelSettings",
              "azure": "#/components/schemas/AzureModelSettings",
              "baseten": "#/components/schemas/BasetenModelSettings",
              "bedrock": "#/components/schemas/BedrockModelSettings",
              "chatgpt_oauth": "#/components/schemas/ChatGPTOAuthModelSettings",
              "deepseek": "#/components/schemas/DeepseekModelSettings",
              "google_ai": "#/components/schemas/GoogleAIModelSettings",
              "google_vertex": "#/components/schemas/GoogleVertexModelSettings",
              "groq": "#/components/schemas/GroqModelSettings",
              "openai": "#/components/schemas/OpenAIModelSettings",
              "openrouter": "#/components/schemas/OpenRouterModelSettings",
              "sglang": "#/components/schemas/SGLangModelSettings",
              "together": "#/components/schemas/TogetherModelSettings",
              "xai": "#/components/schemas/XAIModelSettings",
              "zai": "#/components/schemas/ZAIModelSettings"
            }
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Model Settings",
      "description": "The model settings for this conversation (overrides agent's model settings)."
    },
    "last_message_at": {
      "anyOf": [
        {
          "type": "string",
          "format": "date-time"
        },
        {
          "type": "null"
        }
      ],
      "title": "Last Message At",
      "description": "Timestamp of the most recent message request sent to this conversation."
    }
  },
  "additionalProperties": false,
  "type": "object",
  "required": [
    "id",
    "agent_id"
  ],
  "description": "Represents a conversation on an agent for concurrent messaging."
}