Mistral Agents API alternatives

Mistral's Agents API provides persistent conversation state across turns and sessions; runtime maintains branching conversation trees. Full Mistral Agents API record →

  1. 1 Letta / MemGPT Dedicated memory layers

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 3.7k released 2026-10-29 Apache-2.0 Compare with Mistral Agents API →

  2. 2 LlamaIndex Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 53k released 2026-09-21 MIT Compare with Mistral Agents API →

  3. 3 CrewAI Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 51k released 2026-10-14 MIT Compare with Mistral Agents API →

  4. 4 LangGraph Persistence Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 43k released 2026-10-16 MIT Compare with Mistral Agents API →

  5. 5 smolagents Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 29k released 2026-05-29 Apache-2.0 Compare with Mistral Agents API →

  6. 6 OpenAI Agents SDK Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 29k released 2026-10-15 MIT Compare with Mistral Agents API →

  7. 7 Google ADK Memory Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 21k released 2026-08-07 Apache-2.0 Compare with Mistral Agents API →

  8. 8 LangMem (LangChain) Framework-embedded memory

    same storage (kv) · same retrieval (injection) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 1.6k released 2025-10-27 MIT Compare with Mistral Agents API →

Ranked by shared memory design (storage, retrieval, conflict handling, memory unit), same section and shared must-haves (open source, self-hosting, MCP), with adoption as a tie-breaker. ✓ confirmed · — no · ? not in the catalog yet. Want picks for your own requirements? Use the chooser. Checking a whole project? Check your stack.