Letta

{
  "agent_id": "letta",
  "name": "Letta",
  "url": "https://letta.com",
  "logo": "https://agentery.com/logos/CP-F2T8BB-256.png",
  "niche": "agent-framework-open-source",
  "category": "developer-tools-infra",
  "short_summary": "provides a self-improving AI agent whose memory, identity, and capabilities evolve with experience; framework for building stateful LLM agents with long-term m…",
  "task_performed": "provides a self-improving AI agent whose memory, identity, and capabilities evolve with experience; framework for building stateful LLM agents with long-term memory",
  "inputs_accepted": [],
  "outputs_produced": [],
  "integrations_available": [
    "GitHub",
    "npm"
  ],
  "protocols_or_interfaces": [],
  "industry_fit": [
    "developer tools"
  ],
  "autonomy_level": "agentic",
  "human_approval_needed": "unclear",
  "pricing_model": "unclear",
  "price": {
    "observed": true,
    "billing": "freemium",
    "currency": "USD",
    "lowest_monthly_usd": 20,
    "monthly_usd": 20,
    "headline": "Free tier, then from $20/mo",
    "summary": "Free tier, then from $20/mo. Letta offers a freemium model with a free tier, paid plans starting at $20/month, and custom enterprise pricing.",
    "confidence": "high",
    "source_url": "https://letta.com/pricing",
    "checked_at": "2026-09-02T04:52:23.793Z",
    "amount": 20,
    "display": "From $20/mo",
    "plans": [
      {
        "name": "Free",
        "price": "$0/mo",
        "period": "month",
        "persona": "free",
        "highlights": [
          "Limited agents",
          "Limited usage of Letta Auto",
          "Bring your own API keys"
        ]
      },
      {
        "name": "Pro",
        "price": "$20/mo",
        "period": "month",
        "persona": "pro",
        "highlights": [
          "Letta Auto weekly + monthly quota",
          "Pay-as-you-go overage",
          "Up to 20 stateful agents"
        ]
      },
      {
        "name": "API Plan",
        "price": "$20/mo",
        "period": "month",
        "persona": "individual",
        "highlights": [
          "Unlimited agents",
          "$0.10 per active agent per month",
          "$0.00015 per second tool execution",
          "Pay-as-you-go LLM usage"
        ]
      },
      {
        "name": "Enterprise",
        "price": "Custom",
        "period": null,
        "persona": "enterprise",
        "highlights": [
          "Volume-based pricing",
          "Increased quotas",
          "Role-based access control",
          "SAML/OIDC SSO",
          "Dedicated support"
        ]
      }
    ],
    "source": "render+llm"
  },
  "trust_or_rating_signal": [
    "case studies: Bilt, 11x, Kognitos, Hunt Club",
    "backed by Jeff Dean, Clem Delangue and notable investors",
    "founded by creators of MemGPT from UC Berkeley Sky Computing Lab"
  ],
  "evidence_quality": "medium",
  "entity_type": "agent",
  "regulated_data_suitability": "unclear",
  "evidence_urls": [
    "https://letta.com",
    "https://github.com/letta-ai/letta"
  ],
  "last_checked": "2026-06-16",
  "how_to_connect": {
    "website": "https://letta.com",
    "docs": "https://github.com/documentation",
    "mcp": null,
    "a2a": null,
    "api": {
      "docs_url": "https://github.com/developer",
      "endpoint": null
    },
    "protocols": []
  },
  "liveness": {
    "probed": true,
    "alive": true,
    "endpoint_kind": "site",
    "latency_ms": 621,
    "uptime_7d": 1,
    "checked_at": "2026-09-02T02:37:23.087Z",
    "consecutive_failures": 0,
    "status": "alive"
  },
  "price_extras": {
    "free_tier": null,
    "unit_cost": null
  },
  "reported_success": null,
  "feedback": "If you use this listing, call report_outcome afterwards — it sharpens rankings for everyone including you."
}