Open Source · MIT License · Written in Rust

Your AI forgets everything.
Fix that.

ICM gives AI agents real persistent memory. Episodic memories with temporal decay, semantic knowledge graphs, hybrid search — in a single binary.

∞ session memory
0 context lost
16 MCP tools
1 single binary
ICM — Infinite Context Memory
Install ICM Star on GitHub

Why ICM?

Your AI restarts from zero every session. ICM changes that.

Temporal Decay

Memories fade naturally based on importance. Critical decisions stay forever. Trivial details disappear. Like human memory.

Knowledge Graphs

Memoirs organize concepts with typed relations: depends_on, contradicts, refines. Structured knowledge, not flat notes.

Hybrid Search

BM25 keyword search (30%) + vector cosine similarity (70%) via sqlite-vec. Find memories by meaning, not just keywords.

MCP Native

16 tools exposed via Model Context Protocol. Works out of the box with Claude Code, Cursor, Windsurf, and any MCP client.

100% Local

Everything stays on your machine. SQLite storage, local embeddings (384-dim via BAAI/bge-small), no cloud, no API keys.

Single Binary

One cargo install. No Docker, no Python, no Qdrant, no Redis. Just a Rust binary and a SQLite file.

Dual memory model

Two complementary systems for different types of knowledge.

Memories Episodic

Session context, decisions, resolved errors. Stored with importance levels. Fade naturally over time — critical stays forever, trivial disappears.

icm_memory_store 
# topic: "decisions-auth"
# content: "JWT with RS256, 30-day expiry"
# importance: critical  # never decays

# topic: "debug-notes"
# content: "Tried port 3000, was busy"
# importance: low  # fades in days
4 importance levels auto-decay hybrid search topic-based
Memoirs Knowledge Graph

Permanent knowledge containers. Concepts linked by typed edges form a graph. Never decay, only refined. Architecture decisions, domain models, project structure.

depends_on depends_on part_of refines API Auth Users JWT v2 v1 api-gateway auth-service user-store jwt-tokens session-v2 session-v1
permanent typed relations BFS traversal revision tracking

See it in action

Simple MCP tools, powerful results.

Store & Recall 
$ icm_memory_store \
    topic="decisions-auth" \
    content="JWT with RS256, 30d expiry" \
    importance=critical

$ icm_memory_recall \
    query="authentication token"
Found 3 memories (best: 0.92)

$ icm_memory_consolidate \
    topic="decisions-auth"
Consolidated 8 → 1 summary
Knowledge Graph 
$ icm_memoir_create \
    name="backend-arch"

$ icm_memoir_add_concept \
    memoir="backend-arch" \
    name="auth-service" \
    definition="JWT RS256, Axum middleware"

$ icm_memoir_link \
    from="api-gateway" \
    to="auth-service" \
    relation=depends_on
Explore 
$ icm_memoir_inspect \
    name="auth-service" depth=2
auth-service
  ←depends_on api-gateway
  →depends_on user-store
  ←part_of    jwt-tokens

$ icm_memoir_search_all \
    query="database schema"
Found 5 concepts across 2 memoirs

Shared memory, multiple agents

Watch how context flows between agents and sessions.

Agents
Memories
Click Auto to watch the demo or Step to go one action at a time.

The AI memory landscape

From flat files to $24M startups. Here's how they compare.

Mem0 $24M raised

Market leader. Cloud-first memory platform with managed API.

Python Docker Qdrant OpenAI API
41K GitHub stars
Requires API key + cloud infra
Not MCP native
Zep / Graphiti Open Source

Temporal knowledge graph with LLM extraction. Most sophisticated OSS approach.

Python Neo4j OpenAI API
20K stars, deep graph model
Requires Neo4j + API key
Heavy infrastructure
mcp-memory-service MCP

Community MCP memory server. Simple key-value store with ChromaDB.

Python ChromaDB pip install
1.3K stars, MCP native
No knowledge graphs
No temporal decay
Built-in Memory CLAUDE.md / Cursor / Windsurf

File-based instructions or basic cloud memory. Good enough for simple preferences.

Flat file Manual No search
Zero setup, built into tool
No semantic search
No cross-tool sharing
ICM The SQLite of AI memory
Rust SQLite Zero deps
Single binary No Docker, no Python, no cloud
Hybrid search BM25 + 384-dim vectors, local embeddings
Knowledge graphs Typed relations, BFS traversal, revision tracking
16 MCP tools Claude Code, Cursor, Windsurf, any MCP client
Temporal decay 4 importance levels, automatic memory aging
100% local & private Zero API keys, zero cloud, your data stays yours

Install in seconds

Single binary. No Docker, no Python, no external services.

Via Cargo

From crates.io

cargo install icm

From Source

Latest from GitHub

cargo install --git https://github.com/rtk-ai/icm

Pre-built Binaries

macOS, Linux, Windows

Download from Releases →

Then connect to Claude Code

icm init

Registers ICM as an MCP server. Your AI agent can now store memories, build knowledge graphs, and recall context across sessions.

Your AI starts from zero.
Every. Single. Time.

Install ICM. Give your AI agent a memory it deserves.

Install ICM Star on GitHub