Letta · Example Payload

Letta Agent Payload Example

Customer support agent with persistent memory of every interaction.

supportproduction

Letta Agent Payload Example is an example object payload from Letta, with 14 top-level fields. It illustrates the shape of data this provider's APIs accept or return.

Top-level fields

idnamedescriptioncreated_atupdated_atagent_typellm_configembedding_configmemorytoolssourcestagsenable_sleeptimemetadata

Example Payload

Raw ↑ 
{
  "id": "agent-2f6d4a13-5e9c-4b7e-a3f1-7b8e9c1d2e34",
  "name": "support-agent-1",
  "description": "Customer support agent with persistent memory of every interaction.",
  "created_at": "2026-05-22T10:00:00Z",
  "updated_at": "2026-05-22T12:15:32Z",
  "agent_type": "memgpt_agent",
  "llm_config": {
    "model": "gpt-4.1",
    "model_endpoint_type": "openai",
    "model_endpoint": "https://api.openai.com/v1",
    "context_window": 128000,
    "max_tokens": 4096,
    "temperature": 0.7
  },
  "embedding_config": {
    "embedding_model": "text-embedding-3-small",
    "embedding_endpoint_type": "openai",
    "embedding_dim": 1536
  },
  "memory": {
    "blocks": [
      {
        "id": "block-persona-01",
        "label": "persona",
        "value": "You are a calm, patient API support agent. You remember every customer interaction.",
        "limit": 2000
      },
      {
        "id": "block-human-01",
        "label": "human",
        "value": "The user is Kin Lane, founder of API Evangelist. Prefers concise answers.",
        "limit": 1000
      }
    ]
  },
  "tools": [
    {"id": "tool-send-msg", "name": "send_message"},
    {"id": "tool-core-append", "name": "core_memory_append"},
    {"id": "tool-core-replace", "name": "core_memory_replace"},
    {"id": "tool-arch-insert", "name": "archival_memory_insert"},
    {"id": "tool-arch-search", "name": "archival_memory_search"},
    {"id": "tool-conv-search", "name": "conversation_search"},
    {"id": "tool-web", "name": "web_search"}
  ],
  "sources": [
    {"id": "source-ae-01", "name": "api-evangelist-docs"}
  ],
  "tags": ["support", "production"],
  "enable_sleeptime": false,
  "metadata": {"team": "platform", "deployed_via": "letta-cloud"}
}