Microsoft Foundry Agent Service Memory alternatives

Fully managed long-term memory store built into Azure/Microsoft Foundry Agent Service that extracts user-profile facts and chat summaries and retrieves them across sessions — Microsoft's peer to AgentCore Memory and Vertex Memory Bank. Full Microsoft Foundry Agent Service Memory record →

  1. 1 Google Gemini Memory Platform-provider memory

    also in Platform-provider memory · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (profile, fact) · also has MCP

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Microsoft Foundry Agent Service Memory →

  2. 2 OpenAI ChatGPT Memory Platform-provider memory

    also in Platform-provider memory · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also has MCP

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Microsoft Foundry Agent Service Memory →

  3. 3 Perplexity Memory Platform-provider memory

    also in Platform-provider memory · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also has MCP

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Microsoft Foundry Agent Service Memory →

  4. 4 Grok Memory (xAI) Platform-provider memory

    also in Platform-provider memory · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact)

    OSS ? Self-host — Managed ✓ MCP ? Compare with Microsoft Foundry Agent Service Memory →

  5. 5 Meta AI Memory Platform-provider memory

    also in Platform-provider memory · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact)

    OSS ? Self-host — Managed ✓ MCP ? Compare with Microsoft Foundry Agent Service Memory →

  6. 6 Mistral Le Chat — Memories (now Vibe) Platform-provider memory ⚠ renamed — now Vibe

    also in Platform-provider memory · same retrieval (injection) · same conflict handling (llm-arbitrate) · same memory unit (fact) · also has MCP

    OSS ? Self-host ✓ Managed ✓ MCP ✓ Compare with Microsoft Foundry Agent Service Memory →

  7. 7 Honcho (Plastic Labs) Dedicated memory layers

    same storage (vector) · same retrieval (hybrid, injection) · same conflict handling (llm-arbitrate) · same memory unit (profile, summary) · also has MCP

    OSS ✓ Self-host ✓ Managed ? MCP ✓ ★ 7.7k released 2026-10-21 AGPL-3.0 Compare with Microsoft Foundry Agent Service Memory →

  8. 8 AWS Bedrock AgentCore Memory Platform-provider memory

    also in Platform-provider memory · same storage (proprietary) · same memory unit (fact) · also has MCP

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Microsoft Foundry Agent Service 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.