AgentIndex icon
AgentIndex
engram logo
engram
★ 163
vs
zettelforge logo
zettelforge
★ 66

engram vs zettelforge

engram: Engram is a local identity layer for AI tools that stores your profile, preferences, lessons learned, and key decisions as local JSON files. It exposes them through MCP so every AI tool reads the same context, persisting across sessions, tool updates, and switches. 100% local and open source.; zettelforge: ZettelForge provides persistent memory for AI agents with automatic entity extraction, knowledge graph construction, and STIX ontology. It supports offline operation with no API keys or cloud dependencies. It features alias resolution, blended retrieval, and memory evolution for cyber threat intelligence.

01

TL;DR

engram logo
engramMemory & Context · ★ 163

Developers: Maintain quality standards, architecture decisions, and lessons across projects.

Read engram full review →
zettelforge logo
zettelforgeMemory & Context · ★ 66

Persistent memory for AI agents in cyber threat intelligence

Read zettelforge full review →
02

Side-by-Side Comparison

Field
engram logoengram
zettelforge logozettelforge
Category
Memory & Context
Memory & Context
Stars
★ 163
★ 66
License
Apache-2.0
MIT
Install Command
pip install piia-engram
pip install zettelforge
Updated
1d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
ai-agent, ai-identity, ai-memory
ai-agent, claude-code, claude-code-plugin
03

Features

engram logoengram
01Cross-tool identity sharing
02Local-first, private data
03MCP-compatible
04Knowledge inheritance across projects
05Passive knowledge capture
zettelforge logozettelforge
01Entity extraction of CVEs, threat actors, IOCs, MITRE ATT&CK techniques, and more
02Knowledge graph with causal triple inference
03Alias resolution (e.g., APT28 = Fancy Bear)
04Blended retrieval combining vector similarity and graph traversal with intent classification
05Memory evolution with ADD/UPDATE/DELETE/NOOP decisions
04

Use Cases

engram logoengram
↳Developers: Maintain quality standards, architecture decisions, and lessons across projects.
↳Investment analysts: Store reasoning chains for decisions across analyses.
↳System architects: Keep Architecture Decision Records that persist across companies.
zettelforge logozettelforge
↳Persistent memory for AI agents in cyber threat intelligence
↳Threat intelligence analysis and knowledge graph building
↳Tracking changes in threat actor tactics and techniques over time
FAQ

FAQ

What is the difference between engram and zettelforge?
Both engram and zettelforge are in the Memory & Context category. engram has 163 stars, while zettelforge has 66 stars.
Which is better, engram or zettelforge?
The best choice depends on your use case. Choose engram if Developers: Maintain quality standards, architecture decisions, and lessons across projects., and zettelforge if Persistent memory for AI agents in cyber threat intelligence.
Is engram free or open source?
Yes, engram is open source on GitHub (Apache-2.0).
Is zettelforge free or open source?
Yes, zettelforge is open source on GitHub (MIT).
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