GitHub Copilot Memory (agentic memory) alternatives

Repository-scoped memories that Copilot coding agent, code review and CLI write automatically, share across features, validate against the current code before use, and expire after 28 days; owners can review/delete them. Full GitHub Copilot Memory (agentic memory) record →

  1. 1 Pydantic-AI MemoryTool Framework-embedded memory

    same storage (proprietary) · same retrieval (agentic) · same memory unit (fact)

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 20k MIT Compare with GitHub Copilot Memory (agentic memory) →

  2. 2 Honcho (Plastic Labs) Dedicated memory layers

    same retrieval (agentic) · same conflict handling (llm-arbitrate) · same memory unit (fact, profile)

    OSS ✓ Self-host ✓ Managed ? MCP ✓ ★ 7.7k released 2026-10-21 AGPL-3.0 Compare with GitHub Copilot Memory (agentic memory) →

  3. 3 Cursor Memories Coding-agent memory

    also in Coding-agent memory · same storage (proprietary) · same memory unit (fact)

    OSS — Self-host ? Managed ? MCP ✓ proprietary Compare with GitHub Copilot Memory (agentic memory) →

  4. 4 Microsoft Foundry Agent Service Memory Platform-provider memory

    same storage (proprietary) · same conflict handling (llm-arbitrate) · same memory unit (fact, profile)

    OSS — Self-host ? Managed ? MCP ✓ proprietary Compare with GitHub Copilot Memory (agentic memory) →

  5. 5 Perplexity Brain Platform-provider memory

    same storage (proprietary) · same retrieval (agentic) · same memory unit (fact)

    OSS — Self-host ? Managed ? MCP ? proprietary Compare with GitHub Copilot Memory (agentic memory) →

  6. 6 Letta / MemGPT Dedicated memory layers

    same retrieval (agentic) · same conflict handling (llm-arbitrate) · same memory unit (fact)

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 3.7k released 2026-10-29 Apache-2.0 Compare with GitHub Copilot Memory (agentic memory) →

  7. 7 LabGenius Vertical / domain-specific AI memory

    same storage (proprietary) · same retrieval (agentic) · same memory unit (fact)

    OSS ? Self-host — Managed ✓ MCP ? Compare with GitHub Copilot Memory (agentic memory) →

  8. 8 Official MCP Memory server Claude Code memory mechanisms

    same conflict handling (llm-arbitrate) · same memory unit (fact)

    OSS ✓ Self-host ✓ Managed — MCP ✓ ★ 90k released 2026-08-31 Apache-2.0 AND MIT (new contributions… Compare with GitHub Copilot Memory (agentic 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.