Agentic Memory

Agentic Memory

MCP server for persistent, cross-session, local-first memory for AI agents, storing memories as Markdown files with SQLite indexing for hybrid search.

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README

Agentic Memory

License Python 3.11+ Tests Schema MCP Tools CRDT Sync Temporal KG v1.1.0 Paper Benchmarks

Quick Start · Features · Architecture · MCP Server · SDKs · Comparison · Docs · Contributing


What is Agentic Memory?

Agentic Memory gives AI agents persistent, cross-session, local-first memory — no cloud, no vendor lock-in, no API keys required. Memories are stored as human-readable Markdown files. A derived SQLite index enables fast full-text, semantic, and knowledge-graph search.

Built for Claude Code, OpenCode, MiMoCode, and any MCP-compatible agent harness.

graph TD
    A[Agentic Memory] --> B[Markdown - source]
    A --> C[SQLite FTS5 - derived]
    A --> D[12-Phase Search Pipeline]
    B --> E[.md files - Git-ready]
    C --> F[Temporal Knowledge Graph]
    D --> G[CQRS + CRDT Multi-Agent Sync]
    A --> H[25 MCP tools]
    A --> I[49 cron scripts -> 1 scheduler]
    A --> J[9 hooks]
    A --> K[Python SDK + TypeScript SDK + REST API]

Quick Start

Python SDK (Recommended)

from agentic_memory import MemoryClient

mc = MemoryClient()
mc.save("User prefers dark mode", category="preferences")
results = mc.search("dark mode")
for r in results:
    print(f"[{r.score:.2f}] {r.content}")

Agent Scoping

from agentic_memory import AgentMemory

coder = AgentMemory(agent_id="coder")
coder.save("Frontend uses React with TypeScript")

designer = AgentMemory(agent_id="designer")
designer.save("Brand colors are #FF5733 and #33FF57")

MCP Server

# Add to your MCP config
{
  "agentic-memory": {
    "command": "agentic-memory-server"
  }
}

REST API

agentic-memory api --port 9878
curl http://localhost:9878/api/v1/search?q=dark+mode

Features

Search — 12-Phase Hybrid Pipeline

Phase Technique Purpose
0 Unicode normalization Input normalization
1 FTS5 BM25 Keyword retrieval
2 usearch ANN + model2vec Semantic vector search
3 ColBERT late-interaction Token-level matching
4 Reciprocal Rank Fusion Merge all retrievers
5 Cross-encoder rerank Neural reranking (weak or deep CE)
6 Temporal decay Recency bias
7 Neural forget curve Surprise-based retention
8 KG concept boost Knowledge graph boost
9 Final scoring Weighted combination
10 Result envelope Output formatting
11 Error counter Per-phase observability

Each phase is independently isolated — no single failure kills the search.

Write — Crash-Safe, Conflict-Preserving

  • Saga transactions — Crash-consistent writes with undo/redo
  • CQRS write journal — Lock-free multi-agent writes via journal.db
  • CRDT field-level LWWES — Concurrent edits to different fields both win
  • Safe atomic write — POSIX rename, conflict file preservation

Knowledge Graph — Temporal + Contradiction-Aware

  • Entity extraction with Jaccard fuzzy matching
  • Temporal edges with valid_at / invalid_at
  • Contradiction detection and supersession chains
  • Graph analytics (centrality, community detection)

Neural Forget Curve

Surprise-based retention formula considering access patterns, query relevance, recency, and importance:

retention = sigmoid(w_acc × access + w_surp × surprise + w_imp × importance + w_fit × fitness - w_rec × recency - bias)

Cron Consolidation

39 crontab entries replaced with 1 consolidated scheduler that runs every 5 minutes, checks which jobs are due by frequency tier, and runs them sequentially.

System Health Dashboard

memory_system_health MCP tool returns green/yellow/red across 6 dimensions with actionable next steps: database, search, worker, crons, auto-save, disk.


Architecture

agentic-memory/
├── agentic_memory/              # Python SDK (pip installable)
│   ├── client.py                # MemoryClient (save/search/CRUD)
│   ├── temporal.py              # TemporalKG
│   ├── kg.py                    # KnowledgeGraph
│   ├── integrations/            # LangChain + CrewAI adapters
│   └── models.py                # 8 typed dataclasses
├── search/                      # 14-phase search pipeline
│   ├── orchestrator.py          # Main pipeline (2,825 LOC)
│   ├── scoring.py               # RRF, temporal decay, KG boost
│   ├── rerankers.py             # Cross-encoder, ColBERT
│   ├── chunk_index.py           # Semantic chunking
│   └── synthesis.py             # Answer synthesis
├── save/                        # Write path
│   ├── pipeline.py              # Saga-wrapped save
│   ├── backlinks.py             # Wiki-style backlinks
│   └── post_save_hooks.py       # Post-save operations
├── infra/                       # Infrastructure
│   ├── db.py                    # Connection pool + WAL
│   ├── write_journal.py         # CQRS write journal
│   ├── embedding_search.py      # Semantic embeddings
│   ├── reranker.py              # Neural reranker
│   ├── vector_store.py          # ANN index abstraction
│   ├── api_server.py            # REST + WebSocket
│   └── cache.py                 # Multi-level caching
├── knowledge_graph/             # KG extraction + search
├── kg/                          # Temporal KG + analytics
├── crdt/                        # Field-level CRDT merge
├── fact/                        # Fact extraction + temporal
├── background/                  # Daemon + worker + circuit breaker
├── cron/                        # 47+ cron jobs + consolidated scheduler
├── hooks/                       # 6 lifecycle hooks
├── migrations/                  # 57 reversible migrations
├── eval/                        # 4,766+ tests
├── ts-sdk/                      # TypeScript SDK
├── mcp_*.py                     # 31 MCP modules
├── mcp_health.py                # System health MCP tool
└── dashboard.py                 # Streamlit observability

Production stats: ~110K LOC, 297 test files, 4,766+ test functions, schema v56, 57 reversible migrations, 17 CORE MCP tools, 1 consolidated scheduler, 6 lifecycle hooks.


SDKs

Python

pip install agentic-memory
from agentic_memory import MemoryClient, AgentMemory, TemporalKG

mc = MemoryClient()
mc.save("Important context", category="lessons")
results = mc.search("context")
stats = mc.stats()

TypeScript

npm install @agentic-memory/sdk
import { MemoryClient } from '@agentic-memory/sdk';
const client = new MemoryClient();
await client.add('Important context');
const results = await client.search('context');

REST API

agentic-memory api --port 9878
curl -X POST http://localhost:9878/api/v1/memories \
  -H "Content-Type: application/json" \
  -d '{"content": "Important context"}'

MCP Server

17 CORE tools always visible to your agent. 95 ADMIN + 3 DEPRECATED behind memory_maintenance(operation="...").

CORE Tools

memory_search         memory_save           memory_delete
memory_recall         memory_note           memory_learn
memory_audit          memory_organize       memory_share
memory_graph          memory_profile        memory_session_start
memory_advanced       memory_review_beliefs memory_curate_autosave
memory_health_check   memory_system_health

Setup

{
  "agentic-memory": {
    "command": "agentic-memory-server",
    "env": {
      "MEMORY_KNOWLEDGE_GRAPH": "1",
      "MEMORY_DB_PATH": "./memory.db"
    }
  }
}

Integrations

LangChain

from agentic_memory.integrations.langchain.tool import search_tool, save_tool
agent = create_react_agent(llm, tools=[search_tool, save_tool])

CrewAI

from agentic_memory.integrations.crewai.tool import AgenticMemorySearchTool
agent = Agent(..., tools=[AgenticMemorySearchTool()])

OKF (Open Knowledge Format)

mc.okf_export("~/ObsidianVault/agent-memory")

Configuration

Install Extras

pip install agentic-memory              # Core
pip install agentic-memory[embeddings]  # + semantic search
pip install agentic-memory[reranker]    # + cross-encoder
pip install agentic-memory[langchain]   # + LangChain
pip install agentic-memory[crewai]      # + CrewAI
pip install agentic-memory[all]         # Everything

Key Environment Variables

Variable Default Description
MEMORY_DB_PATH ./memory.db Database path
MEMORY_LOCAL_DIR ./memory Markdown directory
MEMORY_KNOWLEDGE_GRAPH 0 Enable KG extraction
MEMORY_EMBEDDINGS 0 Enable semantic search
MEMORY_LLM_EXTRACTION 0 Enable LLM fact extraction

Comparison

Feature Agentic Memory Mem0 Letta Zep
Local-first Yes No No No
MCP-native 17 CORE tools No No 1 tool
14-phase search Yes No No No
Temporal KG Yes Partial No Yes
CRDT sync Field-level No No No
CQRS journal Yes No No No
Neural forget Yes No No No
Python SDK Yes Yes Yes Yes
TypeScript SDK Yes Yes Yes Yes
LangChain Yes Yes Yes Yes
CrewAI Yes Yes Yes No
OKF support Yes No No No
Test coverage 4,766+ tests ~500 ~2,000 ~300
License Apache 2.0 Apache 2.0 Apache 2.0 Apache 2.0

Documentation

Section Description
Quick Start Get running in 5 minutes
Python SDK Full API reference
TypeScript SDK Full API reference
REST API HTTP endpoints
Architecture System design
LangChain Guide Integration guide
CrewAI Guide Integration guide
Concepts Search pipeline, KG, CRDT, tiers
How-To Guides Integration, debugging, cron setup
Reference MCP tools, configuration, schema

Contributing

See CONTRIBUTING.md for dev setup, coding conventions, and PR guidelines.

Issues and PRs welcome. For security vulnerabilities, see SECURITY.md.


License

Apache License 2.0

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