AgentIndex icon
AgentIndex
geode logo
geode
★ 34
vs
letta logo
letta
★ 25.2k

geode vs letta

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.; letta: Letta is a powerful platform for building stateful AI agents equipped with advanced memory, enabling them to learn and self-improve over time. It provides both a command-line interface for local agent execution and a comprehensive API with Python and TypeScript SDKs for seamless integration into applications.

01

TL;DR

geode logo
geodeMemory & Context · ★ 34

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

Read geode full review →
letta logo
lettaMemory & Context · ★ 25.2k
When to choose:
  • You want a long-lived agent that remembers past work and rewrites its own memory and context over time.
  • You want one agent reachable from CLI, desktop, browser, mobile and messaging apps, with subagents, schedules and hooks.
  • You want memory you can inspect: the README says context is tracked in git and can sync to your own repository.
When to skip:
  • You only need to add memory to an agent you already use through MCP; a small MCP memory server is a lighter fit.
  • You rely on older Letta tutorials or the V1 API server: the project restructured, and the V1 server is retired.
  • You want everything to work without signing in: Letta Cloud is the default backend and some features need it.
Read letta full review →
02

Side-by-Side Comparison

Field
geode logogeode
letta logoletta
Category
Memory & Context
Memory & Context
Stars
★ 34
★ 25.2k
License
GPL-3.0
Apache-2.0
Install Command
Not applicable, installed via Obsidian's plugin manager or manual file placement.
npm install -g @letta-ai/letta-code
Updated
1w ago
5d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Obsidian Plugin, Note Sync, Encrypted Storage
Stateful AI, Agent Platform, Advanced Memory
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.
letta logoletta
01Build stateful AI agents with advanced memory
02Agents capable of learning and self-improvement over time
03CLI tool for running agents locally in your terminal
04Comprehensive API for integrating agents into applications
05Support for skills and subagents; fully model-agnostic
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.
letta logoletta
↳Running AI agents locally in your terminal for coding and general tasks.
↳Integrating stateful AI agents into custom applications using the API and SDKs.
↳Developing self-improving AI systems that adapt and learn continually.
05

Best For

geode logogeode
—
letta logoletta
Most PopularEssentialTrending
FAQ

FAQ

What is the difference between geode and letta?
Both geode and letta are in the Memory & Context category. geode has 34 stars, while letta has 25.2k stars.
Which is better, geode or letta?
The best choice depends on your use case. Choose geode if Seamlessly synchronize an Obsidian vault across personal laptops, phones, and tablets., and letta if Running AI agents locally in your terminal for coding and general tasks..
Is geode free or open source?
Yes, geode is open source on GitHub (GPL-3.0).
Is letta free or open source?
Yes, letta is open source on GitHub (Apache-2.0).
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