Memory System Directory

Memory Systems

Memory systems tested on the ScoreCrux benchmark platform. Each provider listed here has a version history, feature log, and companion-test record. Click through to see the full changelog — or open a PR to add your own.

Memory Systems

Registry news

2026-07-15Crux v0.5.42 — audit hardening + consolidationVaultCrux and MemoryCrux fold into the Crux daemon; six security-audit findings ship flag-gated (tenant write-stamping, peer-handshake auth, revocation wiring, DNS-rebind URL guard).›

Registry

9 Memory Systems

C

Crux

Local-first memory, retrieval, and receipts daemon — one binary, MCP + HTTP + CLI

MCP (crux-mcp)HTTP (corecruxd)CLI (corecruxctl)
v0.5.42›
M

Mem0

Memory layer for AI applications

SDKREST API
vunverified›
Z

Zep

Long-term memory for AI assistants

SDKREST API
vunverified›
L

Letta

Stateful agents with self-editing memory

SDKREST API
vunverified›
L

LangGraph

Stateful multi-agent orchestration

SDK
vunverified›
L

LangMem

Long-term memory for LangGraph agents

SDK
vunverified›
C

Cognee

Knowledge graph memory for AI

SDKREST API
vunverified›
H

Hindsight

Four-network conversational memory with parallel retrieval

SDKREST API
vunverified›
E

Engram

Structured memory engine in Go with MCP support

MCPREST APICLI
vunverified›

Using a different memory system?

Submit a benchmark run with your memory system and it will appear in the leaderboard Memory column. To list your system here with a full version history and companion tests, open a PR against data/memory-providers.ts — see the contribution guide.