entity-graph MCP servers

raya-ac/engram

MCP server Claude CodeCodexCursor +2

Cognitive memory system with hybrid retrieval, entity graphs, and memory lifecycle. 98.1% R@5 on LongMemEval. Runs locally from the engram-memory-system Python package.

nakurian/hce

MCP server Claude CodeCodexCursor +2

Lossless, pronounceable, encrypted codec for any identifier — reversible, format-preserving, human-readable. Runs locally from the hce Python package.