AgentIndex icon
AgentIndex
memorycrystal logo
memorycrystal
★ 12
vs
okf-agent-memory logo
okf-agent-memory
★ 827

memorycrystal vs okf-agent-memory

memorycrystal: Memory Crystal provides persistent memory for AI agents, solving the problem of AI forgetting information between sessions. It captures conversations, distills durable knowledge into long-term memory, and recalls the right context when an agent needs it.; okf-agent-memory: OKF Agent Memory provides a domain-neutral, Git-native persistent project memory for AI agents, leveraging the Dual-Memory Agent Architecture to prevent context bloat and memory rot. It uses an ultra-compact behavioral codex and a queryable OKF v0.2 knowledge bundle, with blazing-fast, zero-cost local retrieval.

01

TL;DR

memorycrystal logo
memorycrystalMemory & Context · ★ 12

Enabling AI agents to maintain continuity and recall past decisions across multiple sessions.

Read memorycrystal full review →
okf-agent-memory logo
okf-agent-memoryMemory & Context · ★ 827

Software Engineering: Managing architecture decisions, code references, and operational constraints.

Read okf-agent-memory full review →
02

Side-by-Side Comparison

Field
memorycrystal logomemorycrystal
okf-agent-memory logookf-agent-memory
Category
Memory & Context
Memory & Context
Stars
★ 12
★ 827
License
MIT
MIT
Install Command
curl -fsSL https://memorycrystal.ai/crystal | bash
git clone https://github.com/okf-memory/okf-agent-memory.git && cd okf-agent-memory && make build
Updated
Today
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Persistent Memory, AI Agent Memory, Context Management
AI Agents, Persistent Memory, Knowledge Base
03

Features

memorycrystal logomemorycrystal
01Two-layer memory architecture including Short-term (STM) for recent messages and Long-term (LTM) for durable knowledge.
02Five specialized memory stores (sensory, episodic, semantic, procedural, prospective) for different types of information.
03Adaptive recall with six automatically selected modes to prioritize broad recall, decisions, projects, people, workflows, or conversations.
04First-class immutable knowledge bases for structured reference data, policies, and runbooks, separate from conversational memory.
05Comprehensive set of memory management tools and an authenticated HTTP API for core operations like capture, recall, and search.
okf-agent-memory logookf-agent-memory
01Dual-Memory Cognitive Architecture (DMAA) to eliminate prompt bloat.
02Blazing fast performance with in-memory BM25 search (<300µs) and graph validation (~4ms).
03100% Git-native, zero vendor lock-in, and zero API costs for memory retrieval.
04Built on Google's Open Knowledge Format (OKF) v0.2 for standardized agent knowledge.
05Solves context bloat and memory rot through progressive disclosure and Search-Before-Write principle.
04

Use Cases

memorycrystal logomemorycrystal
↳Enabling AI agents to maintain continuity and recall past decisions across multiple sessions.
↳Integrating persistent memory with various AI tools and platforms like Claude Code, Codex CLI, and OpenClaw.
↳Storing and retrieving structured reference data, policies, and runbooks via immutable knowledge bases.
↳Performing decision archaeology to understand why past choices were made and tracing memories back to their source.
↳Providing pre-flight checks and guardrails for risky AI actions based on learned procedural memory.
okf-agent-memory logookf-agent-memory
↳Software Engineering: Managing architecture decisions, code references, and operational constraints.
↳Scientific Research & Literature Reviews: Organizing and querying research findings and insights.
↳Coaching & Operations: Storing client session history, ethical guidelines, and runbooks.
↳Multi-Agent Collaboration: Providing a shared, auditable knowledge base for autonomous agents.
05

Best For

memorycrystal logomemorycrystal
—
okf-agent-memory logookf-agent-memory
Hidden Gem
FAQ

FAQ

What is the difference between memorycrystal and okf-agent-memory?
Both memorycrystal and okf-agent-memory are in the Memory & Context category. memorycrystal has 12 stars, while okf-agent-memory has 827 stars.
Which is better, memorycrystal or okf-agent-memory?
The best choice depends on your use case. Choose memorycrystal if Enabling AI agents to maintain continuity and recall past decisions across multiple sessions., and okf-agent-memory if Software Engineering: Managing architecture decisions, code references, and operational constraints..
Is memorycrystal free or open source?
Yes, memorycrystal is open source on GitHub (MIT).
Is okf-agent-memory free or open source?
Yes, okf-agent-memory is open source on GitHub (MIT).
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Related

Alternatives to memorycrystal →Alternatives to okf-agent-memory →memorycrystal details →okf-agent-memory details →