letta
★ 23.0k
vs
piia-engram
★ 150
letta vs piia-engram
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.; piia-engram: piia-engram is a local-first AI identity layer that stores your profile, preferences, lessons learned, and key decisions as local JSON files. It exposes them through the MCP protocol so that all compatible AI tools (like Claude Code, Codex, and Cursor) read the same identity, eliminating the need to re-explain yourself across sessions, tool switches, or updates.
01
TL;DR
Choose letta if…Running AI agents locally in your terminal for coding and general tasks.
Choose piia-engram if…Maintain consistent identity when switching between multiple AI coding tools
02
Side-by-Side Comparison
03
Features
letta01Build 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
piia-engram01Local-first JSON storage under ~/.engram/
02MCP-native — integrates with any MCP-compatible AI tool
03Cross-tool identity persistence across Claude Code, Codex, Cursor, and more
04Knowledge inheritance across projects
05Passive knowledge capture from session summaries
04
Use Cases
letta↳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.
piia-engram↳Maintain consistent identity when switching between multiple AI coding tools
↳Avoid re-explaining preferences and lessons in frequent new AI chat sessions
↳Preserve personal context after AI tool updates or version changes
05
Best For
lettaMost PopularTrendingEssential
piia-engramTrendingMemory & ContextDev Tooling
FAQ
FAQ
What is the difference between letta and piia-engram?
Both letta and piia-engram are in the Memory & Context category. letta has 23.0k stars, while piia-engram has 150 stars.
Which is better, letta or piia-engram?
The best choice depends on your use case. Choose letta if Running AI agents locally in your terminal for coding and general tasks., and piia-engram if Maintain consistent identity when switching between multiple AI coding tools.
Is letta free or open source?
Yes, letta is open source on GitHub (Apache-2.0).
Is piia-engram free or open source?
Yes, piia-engram is open source on GitHub (Apache-2.0).
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