YourMemory
Persistent memory layer for AI agents — MCP-compatible, self-hostable
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YourMemory gives AI assistants a persistent memory layer that survives across sessions. It combines BM25 keyword search, vector retrieval, and a knowledge graph in a hybrid layer, then applies a biologically inspired decay so old facts fade and recent ones stay.
It reports strong benchmark results (89.4% Recall@5 on LongMemEval), and its MCP server plugs into Claude, Cursor, Cline, and any MCP-compatible client with no prompt changes.
It is open source under CC-BY-NC and self-hostable on Linux, macOS, or Windows, with no vendor account required. It is aimed at developers who want reliable long-term agent memory they can run themselves.
AI-assisted draft, human-reviewed before publishing — see how we choose & review tools.
Why we picked it
Among memory-layer tools, YourMemory earns its spot for the decay mechanic — old facts fade instead of piling up forever, which is what actually keeps a long-running agent's memory useful rather than cluttered. Self-hostable too, worth it if you don't want memory data leaving your infrastructure.
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