AgentIndex icon
AgentIndex
geode logo
geode
★ 34
vs
Co-Engram logo
Co-Engram
★ 11

geode vs Co-Engram

geode: Geode is a free Obsidian plugin designed for secure, remote synchronization of your vault across multiple devices, including iOS, using user-owned encrypted storage. It also provides an API and MCP server, enabling AI agents to access and interact with the vault, utilizing it as memory for note-taking and maintenance.; Co-Engram: Co-Engram is an advanced, self-evolving memory system designed for AI agents and teams, which models memory after the human brain's plasticity. It allows memories to strengthen with use, weaken upon failure, consolidate, and verify themselves, all stored as plain Markdown in Git for transparent version control.

01

TL;DR

geode logo
geodeMemory & Context · ★ 34

Seamlessly synchronize an Obsidian vault across personal laptops, phones, and tablets.

Read geode full review →
Co-Engram logo
Co-EngramMemory & Context · ★ 11

AI agent knowledge base: Agents can automatically capture, search, and update team knowledge through natural conversation.

Read Co-Engram full review →
02

Side-by-Side Comparison

Field
geode logogeode
Co-Engram logoCo-Engram
Category
Memory & Context
Memory & Context
Stars
★ 34
★ 11
License
GPL-3.0
MIT
Install Command
Not applicable, installed via Obsidian's plugin manager or manual file placement.
npm install -g @co-engram/claude-code && mkdir -p ~/team-memory && cd ~/team-memory && git init && co-engram config data-root $HOME/team-memory
Updated
1w ago
2mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Obsidian Plugin, Note Sync, Encrypted Storage
AI Memory System, Self-Evolving, Knowledge Management
03

Features

geode logogeode
01Secure, encrypted remote vault synchronization across devices.
02API and MCP server access for AI agents to read and write to the vault.
03Multi-device support, including iOS, for seamless access.
04Utilizes user-owned storage for enhanced data control and privacy.
05End-to-end encryption for vault content before it leaves the device.
Co-Engram logoCo-Engram
01Self-maintaining memory: An engine automatically strengthens, consolidates, and refutes memories based on usage and feedback.
02Git-based storage with Stable IDs: Memories are stored as Markdown files in Git with stable ULIDs, allowing clean diffs and persistent references.
03Tiered disclosure for LLM context: Provides different tiers of memory detail (catalog, digest, content) to optimize LLM context window usage.
04Learning loop & plasticity: Memories strengthen with successful use (LTP) and decay with failures or disuse (LTD), similar to brain plasticity.
05Synapse graph for related context: Connects memories with typed synapses, allowing automatic traversal to retrieve related context during search.
04

Use Cases

geode logogeode
↳Seamlessly synchronize an Obsidian vault across personal laptops, phones, and tablets.
↳Allow AI agents (e.g., Claude, Codex) to use the Obsidian vault as a dynamic memory store.
↳Enable agents to read existing notes and write new information directly into the vault.
↳Access and manage Obsidian notes securely from any location with encrypted storage.
Co-Engram logoCo-Engram
↳AI agent knowledge base: Agents can automatically capture, search, and update team knowledge through natural conversation.
↳Team decision memory: Store important decisions and their rationale, which get reinforced when proven effective.
↳Procedural knowledge (Skills): Capture workflows, checklists, and operational capabilities that agents can learn, invoke, and chain.
↳Collaborative memory for developers: Maintain a shared, self-evolving knowledge base for coding patterns, system configurations, and project details.
↳Onboarding new team members: Provide new team members with a living, self-curating memory system that quickly surfaces relevant information.
FAQ

FAQ

What is the difference between geode and Co-Engram?
Both geode and Co-Engram are in the Memory & Context category. geode has 34 stars, while Co-Engram has 11 stars.
Which is better, geode or Co-Engram?
The best choice depends on your use case. Choose geode if Seamlessly synchronize an Obsidian vault across personal laptops, phones, and tablets., and Co-Engram if AI agent knowledge base: Agents can automatically capture, search, and update team knowledge through natural conversation..
Is geode free or open source?
Yes, geode is open source on GitHub (GPL-3.0).
Is Co-Engram free or open source?
Yes, Co-Engram is open source on GitHub (MIT).
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Alternatives to geode →Alternatives to Co-Engram →geode details →Co-Engram details →