OpenViking (ByteDance Volcengine) alternatives

Open-source 'context database' from ByteDance's Volcengine that unifies agent memory, RAG knowledge and skills behind a virtual filesystem (viking:// URIs) with tiered loading and self-evolving context. Full OpenViking (ByteDance Volcengine) record →

  1. 1 Hindsight (Vectorize) Dedicated memory layers

    also in Dedicated memory layers · same storage (vector) · same retrieval (similarity) · same memory unit (summary) · also open source · also self-hostable · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 45k released 2026-10-21 MIT Compare with OpenViking (ByteDance Volcengine) →

  2. 2 Letta / MemGPT Dedicated memory layers

    also in Dedicated memory layers · same storage (vector) · same retrieval (similarity, agentic) · same memory unit (summary) · also open source · also self-hostable · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 3.7k released 2026-10-29 Apache-2.0 Compare with OpenViking (ByteDance Volcengine) →

  3. 3 OWASP Agent Memory Guard Memory governance, privacy & safety

    same storage (file) · same retrieval (exact-match) · same memory unit (file) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed — MCP ? ★ 185 released 2026-08-25 Apache-2.0 Compare with OpenViking (ByteDance Volcengine) →

  4. 4 Pieces for Developers (LTM) Dedicated memory layers

    also in Dedicated memory layers · same storage (vector) · same retrieval (similarity) · also self-hostable · also has MCP

    OSS ? Self-host ✓ Managed ✓ MCP ✓ ★ 113 Compare with OpenViking (ByteDance Volcengine) →

  5. 5 Memory Store (now MemStore) Dedicated memory layers ⚠ renamed — now MemStore

    also in Dedicated memory layers · same storage (vector) · same retrieval (similarity) · also self-hostable · also has MCP

    OSS ? Self-host ✓ Managed ✓ MCP ✓ Compare with OpenViking (ByteDance Volcengine) →

  6. 6 AutoGLM (Zhipu AI) Dedicated memory layers

    also in Dedicated memory layers · same storage (file, vector) · same retrieval (similarity) · also open source · also self-hostable

    OSS ✓ Self-host ✓ Managed ✓ MCP ? ★ 26k Apache-2.0 Compare with OpenViking (ByteDance Volcengine) →

  7. 7 Backboard Dedicated memory layers

    also in Dedicated memory layers · same storage (vector) · same retrieval (similarity) · also self-hostable

    OSS — Self-host ✓ Managed ✓ MCP ? ★ 18 Unlicensed Compare with OpenViking (ByteDance Volcengine) →

  8. 8 Mem0 Dedicated memory layers

    also in Dedicated memory layers · same storage (vector) · same retrieval (similarity) · also open source · also self-hostable · also has MCP

    OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 67k released 2026-09-25 Apache-2.0 Compare with OpenViking (ByteDance Volcengine) →

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.