iai-mcp
★ 911
vs
lumen
★ 312
iai-mcp vs lumen
iai-mcp: IAI-MCP is a local memory layer for MCP-compatible AI assistants. It captures every conversation turn verbatim, organizes them over time, and serves relevant memories at the start of new sessions. All data is encrypted locally with AES-256-GCM and never leaves your machine.; lumen: Lumen is a 100% local semantic code search engine for AI coding agents. It uses open-source embedding models, SQLite, and your CPU to provide fast and cost-effective code understanding. No API keys or cloud required.
01
TL;DR
iai-mcpRAG / Knowledge Base · ★ 911
Provide long-term memory for Claude Code, Codex CLI, and other MCP assistants
lumenRAG / Knowledge Base · ★ 312
Enhancing AI coding agents to find relevant code quickly
02
Side-by-Side Comparison
Field
iai-mcplumenCategory
RAG / Knowledge Base
RAG / Knowledge Base
Stars
★ 911
★ 312
License
MIT
NOASSERTION
Install Command
git clone https://github.com/CodeAbra/iai-mcp.git && cd iai-mcp && bash scripts/install.sh
/plugin marketplace add ory/claude-plugins
/plugin install lumen@ory
Updated
1d ago
1w ago
Open Source
Yes
Yes
Tags
ai-agents, ai-memory, claude
agentic-coding, claude, claude-ai
03
Features
iai-mcp01Ambient capture of all conversation turns with timestamps and metadata
02Automatic recall of relevant memories at session start
03Fully local, no telemetry or cloud dependency
04Encrypted at rest with AES-256-GCM
05Verbatim recall >=99% at 10k episodes
lumen01Semantic vector search
02Auto-indexing with Merkle tree change detection
03Incremental updates
04Supports 15 language families
05Zero cloud, fully local
04
Use Cases
iai-mcp↳Provide long-term memory for Claude Code, Codex CLI, and other MCP assistants
↳Eliminate the need to repeat context across sessions
↳Personalize AI assistant behavior over time based on past interactions
lumen↳Enhancing AI coding agents to find relevant code quickly
↳Reducing API costs for code understanding tasks
↳Enabling offline code search without external services
05
Best For
iai-mcpTrending
lumen—
FAQ
FAQ
What is the difference between iai-mcp and lumen?
Both iai-mcp and lumen are in the RAG / Knowledge Base category. iai-mcp has 911 stars, while lumen has 312 stars.
Which is better, iai-mcp or lumen?
The best choice depends on your use case. Choose iai-mcp if Provide long-term memory for Claude Code, Codex CLI, and other MCP assistants, and lumen if Enhancing AI coding agents to find relevant code quickly.
Is iai-mcp free or open source?
Yes, iai-mcp is open source on GitHub (MIT).
Is lumen free or open source?
Yes, lumen is open source on GitHub (NOASSERTION).
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