Voiceflow Memory alternatives

Agent platform. Keeps a configurable window of recent turns (default 50, range 10–100) in the {vf_memory} variable; older turns are summarized rather than dropped. Chat projects can persist history indefinitely or clear it on tab close/refresh. Full Voiceflow Memory record →

  1. 1 LangGraph Persistence Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same conflict handling (last-write-wins) · same memory unit (fact) · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 43k released 2026-10-16 MIT Compare with Voiceflow Memory →

  2. 2 CrewAI Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

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

  3. 3 OpenAI Agents SDK Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

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

  4. 4 Google ADK Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 21k released 2026-08-07 Apache-2.0 Compare with Voiceflow Memory →

  5. 5 Relevance AI Memory Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Voiceflow Memory →

  6. 6 LangMem (LangChain) Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

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

  7. 7 Retell AI Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

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

  8. 8 Vapi (voice agents) Framework-embedded memory

    also in Framework-embedded memory · same storage (kv) · same retrieval (injection) · same memory unit (fact) · also offered managed · also has MCP

    OSS ? Self-host ✓ Managed ✓ MCP ✓ Compare with Voiceflow 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.