Google ADK Memory alternatives

Google's Agent Development Kit. Session services: InMemory / Database / VertexAI. Long-term: InMemoryMemoryService or VertexAIMemoryBankService (uses Vertex AI Memory Bank Preview for persistent cross-session memory). Full Google ADK Memory record →

  1. 1 OpenAI Agents SDK Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv, vector) · same retrieval (injection, similarity) · same conflict handling (overwrite) · same memory unit (episode, fact) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 29k released 2026-10-15 MIT Compare with Google ADK Memory →

  2. 2 Agno (Phidata) Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (vector) · same retrieval (injection, similarity) · same conflict handling (overwrite) · same memory unit (episode, fact) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 43k released 2026-10-21 Apache-2.0 Compare with Google ADK Memory →

  3. 3 Vapi (voice agents) Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same conflict handling (overwrite) · same memory unit (fact) · also self-hostable · also offered managed

    OSS ? Self-host ✓ Managed ✓ MCP ✓ Compare with Google ADK Memory →

  4. 4 CrewAI Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv, vector) · same retrieval (injection, similarity) · same memory unit (episode, fact) · also open source · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 51k released 2026-10-14 MIT Compare with Google ADK Memory →

  5. 5 smolagents Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (episode) · also open source · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 29k released 2026-05-29 Apache-2.0 Compare with Google ADK Memory →

  6. 6 Semantic Kernel Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (vector) · same retrieval (injection, similarity) · same conflict handling (overwrite) · also open source · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 28k released 2026-10-06 MIT Compare with Google ADK Memory →

  7. 7 Pydantic-AI + Hindsight Framework-embedded memory

    also in Framework-embedded memory · same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also open source · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 20k released 2026-04-15 MIT Compare with Google ADK Memory →

  8. 8 LangMem (LangChain) Framework-embedded memory

    also in Framework-embedded memory · same storage (kv, vector) · same retrieval (injection, similarity) · same memory unit (episode, fact) · also open source · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 1.6k released 2025-10-27 MIT Compare with Google ADK Memory →

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.