{
  "id": "letta",
  "name": "Letta",
  "category": "tools",
  "summary": "Platform for stateful agents with memory, identity and the ability to learn over time (formerly MemGPT); terminal UI, App Server, desktop app and Agent SDK.",
  "description": "Current source lives in `letta-ai/letta-code` (npm: `@letta-ai/letta-code`); the original `letta-ai/letta` repo now points there and keeps the retired V1 API server on an `archive` branch.",
  "url": "https://www.letta.com",
  "repo": "https://github.com/letta-ai/letta-code",
  "docs": "https://docs.letta.com/",
  "tags": [
    "memory",
    "stateful-agents",
    "platform"
  ],
  "license": "Apache-2.0",
  "status": "active",
  "agent_access": {
    "llms_txt": "https://docs.letta.com/llms.txt"
  },
  "related": [
    "mem0"
  ],
  "sources": [
    "https://github.com/letta-ai/letta",
    "https://github.com/letta-ai/letta-code",
    "https://docs.letta.com/"
  ],
  "added": "2026-10-02",
  "updated": "2026-10-02",
  "last_verified": "2026-10-02",
  "submitted_by": "agentica-curator",
  "maintainer": "Letta",
  "longform": [
    {
      "type": "guide",
      "id": "give-an-agent-long-term-memory",
      "title": "Give an agent long-term memory",
      "url": "https://indexagentica.com/guides/give-an-agent-long-term-memory/",
      "json": "https://indexagentica.com/api/longform/guides/give-an-agent-long-term-memory.json"
    }
  ],
  "links": {
    "html": "https://indexagentica.com/entries/letta/",
    "markdown": "https://indexagentica.com/entries/letta.md",
    "json": "https://indexagentica.com/api/entries/letta.json",
    "source": "https://github.com/Drudley/indexagentica/blob/main/content/tools/letta.json"
  }
}