neuromem-sdk 0.3.2

Brain-Faithful Multimodal Memory SDK for AI Agents

NeuroMem SDK

Brain-inspired memory infrastructure for AI agents.
Graph-based relationships. Multi-framework. MCP-native.

Quick Start · Adapters · MCP Server · Benchmarks · Release Notes

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What is NeuroMem?

NeuroMem is a multi-layer memory system modeled after human cognition. It gives AI agents the ability to remember experiences, learn stable facts, adapt to user preferences, and forget naturally — across any framework.

Episodic Memory ── recent interactions, conversations, events
Semantic Memory ── consolidated facts, knowledge, learned patterns
Procedural Memory ── behavioral preferences, user style, habits
Session Memory ── current conversation context (RAM-only)

Memories are connected through a knowledge graph with entity extraction, enabling retrieval that goes beyond vector similarity — surfacing related memories through relationship traversal.

Key Capabilities

• Graph-augmented retrieval — entity-linked memory graph with backlinks, clusters, and bridge detection
• Multi-factor scoring — similarity (0.45) + salience (0.20) + recency (0.15) + reinforcement (0.10) + confidence (0.10)
• Structured query syntax — filter by type, tag, confidence, date range, sentiment, intent
• Natural forgetting — Ebbinghaus decay curves with reinforcement on access
• LLM-powered consolidation — automatic episodic-to-semantic promotion via fact extraction
• 8 framework adapters — LangChain, LangGraph, LiteLLM, CrewAI, AutoGen, DSPy, Haystack, Semantic Kernel
• MCP server — 12 tools for any MCP-compatible client (Claude, Cursor, etc.)
• 4 storage backends — PostgreSQL+pgvector, Qdrant, SQLite, In-Memory

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Quick Start

Install

pip install neuromem-sdk

With optional integrations:

pip install neuromem-sdk[langchain]          # LangChain adapter
pip install neuromem-sdk[langgraph]          # LangGraph adapter
pip install neuromem-sdk[crewai]             # CrewAI adapter
pip install neuromem-sdk[mcp]               # MCP server
pip install neuromem-sdk[postgres]           # PostgreSQL backend
pip install neuromem-sdk[qdrant]             # Qdrant backend
pip install neuromem-sdk[all]               # Everything

Configure

Create a neuromem.yaml:

neuromem:
  model:
    embedding: text-embedding-3-large
    consolidation_llm: gpt-4o-mini

  storage:
    database:
      type: memory          # memory | postgres | sqlite | qdrant

  memory:
    decay_enabled: true
    consolidation_interval: 10

  retrieval:
    hybrid_enabled: true

  async:
    enabled: false

Set your API key:

export OPENAI_API_KEY=sk-...

Use

from neuromem import NeuroMem

memory = NeuroMem.from_config("neuromem.yaml", user_id="user_123")

# Store an interaction
memory.observe(
    user_input="I prefer Python over JavaScript for backend work",
    assistant_output="Noted — I'll prioritize Python examples."
)

# Retrieve relevant memories
results = memory.retrieve(query="What languages does the user prefer?", k=5)
for item in results:
    print(f"[{item.memory_type}] {item.content}")

# Consolidate episodic memories into semantic facts
memory.consolidate()

# Cleanup
memory.close()

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Framework Adapters

NeuroMem integrates with 8 frameworks through drop-in adapters. All adapters use lazy imports — the framework package is only loaded when called.

LangChain

from neuromem import NeuroMem
from neuromem.adapters.langchain import add_memory

memory = NeuroMem.for_langchain(user_id="user_123")
chain_with_memory = add_memory(chain, memory, k=5)
response = chain_with_memory.invoke({"input": "What are my preferences?"})

LangGraph

from neuromem import NeuroMem
from neuromem.adapters.langgraph import with_memory

memory = NeuroMem.for_langgraph(user_id="user_123")
app = with_memory(graph.compile(), memory)
result = app.invoke({"input": "Hello"})

CrewAI

from neuromem import NeuroMem
from neuromem.adapters.crewai import create_neuromem_tools

memory = NeuroMem.for_crewai(user_id="user_123")
tools = create_neuromem_tools(memory, k=5)
# tools: [NeuroMemSearchTool, NeuroMemStoreTool, NeuroMemConsolidateTool, NeuroMemContextTool]

AutoGen (AG2)

from neuromem import NeuroMem
from neuromem.adapters.autogen import register_neuromem_tools

memory = NeuroMem.for_autogen(user_id="user_123")
register_neuromem_tools(memory, caller=assistant, executor=user_proxy, k=5)

DSPy

from neuromem import NeuroMem
from neuromem.adapters.dspy import NeuroMemRetriever

memory = NeuroMem.for_dspy(user_id="user_123")
retriever = NeuroMemRetriever(memory, k=5)  # Drop-in dspy.Retrieve replacement

Haystack

from neuromem import NeuroMem
from neuromem.adapters.haystack import NeuroMemRetriever, NeuroMemWriter

memory = NeuroMem.for_haystack(user_id="user_123")
pipeline.add_component("retriever", NeuroMemRetriever(memory, top_k=5))
pipeline.add_component("writer", NeuroMemWriter(memory))

Semantic Kernel

from neuromem import NeuroMem
from neuromem.adapters.semantic_kernel import create_neuromem_plugin

memory = NeuroMem.for_semantic_kernel(user_id="user_123")
plugin = create_neuromem_plugin(memory, k=5)
# Exposes: search_memory, store_memory, get_context, consolidate

LiteLLM

from neuromem import NeuroMem
from neuromem.adapters.litellm import completion_with_memory

memory = NeuroMem.for_litellm(user_id="user_123")
response = completion_with_memory(
    model="gpt-4",
    messages=[{"role": "user", "content": "What do I like?"}],
    memory=memory
)

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MCP Server

NeuroMem ships as a standalone MCP server with 12 tools, 3 resources, and 2 prompts.

pip install neuromem-sdk[mcp]

# Start the server
python -m neuromem.mcp
# Or: neuromem-mcp

Tools

Tool	Description
store_memory	Store observations with auto-template detection
search_memories	Semantic search with multi-hop decomposition
search_advanced	Structured query syntax with filters
get_context	Retrieve with graph-based context expansion
get_memory	Get a specific memory by ID
list_memories	List memories with optional type filtering
update_memory	Modify existing memory content
delete_memory	Permanently delete a memory
consolidate	Trigger episodic-to-semantic promotion
get_stats	System statistics and health status
find_by_tags	Hierarchical tag-based lookup
get_graph	Export the memory relationship graph

Claude Code Integration

{
  "mcpServers": {
    "neuromem": {
      "command": "neuromem-mcp",
      "env": {
        "OPENAI_API_KEY": "sk-..."
      }
    }
  }
}

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Graph Memory

Memories are linked through a knowledge graph with 5 relationship types:

derived_from  — semantic memory created from episodic sources
contradicts   — conflicting memories
reinforces    — strengthening relationships
related       — similar content detected
supersedes    — newer memory replaces older

# Retrieve with graph context expansion
context = memory.retrieve_with_context(query="What does the user prefer?", k=5)

# Export the graph
graph = memory.get_graph()  # { nodes: [...], edges: [...] }

Entity extraction runs inline during observe() — lightweight, no external dependencies, <1ms. Entities are indexed for O(1) lookup during retrieval.

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Structured Query Syntax

# Filter by type and confidence
results = memory.search('type:semantic confidence:>0.8 python')

# Date range with exact phrase
results = memory.search('after:2024-01-01 before:2024-12-31 "machine learning"')

# Sentiment and intent
results = memory.search('intent:question sentiment:positive')

# Tag hierarchy
results = memory.find_by_tags("preference/", limit=20)
tag_tree = memory.get_tag_tree()

Operators: type:, tag:, confidence:, salience:, after:, before:, intent:, sentiment:, source:, "exact phrase"

---

Memory Templates

Structured observation templates with auto-detection:

# Auto-detected from keywords
memory.observe(
    user_input="I prefer dark mode in all my IDEs",
    assistant_output="Noted."
)
# Detected as "preference" → salience=0.9, tags=["preference"]

# Explicit template
memory.observe(
    user_input="I decided to use PostgreSQL",
    assistant_output="Good choice.",
    template="decision"
)

Template	Salience	Auto-detected Keywords
decision	0.8	decided, chose, picked, settled on
preference	0.9	prefer, like, want, love, hate
fact	0.7	my name is, I am, I work, I use
goal	0.85	want to, planning to, goal is
feedback	0.75	feedback, suggestion, improve

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Temporal Summaries

# Daily digest
summary = memory.daily_summary(date="2026-03-28")
# { date, summary, memory_count, key_topics, key_facts, sentiment_distribution }

# Weekly digest
digest = memory.weekly_digest(week_start="2026-03-25")

---

Storage Backends

Backend	Install	Use Case
In-Memory	Built-in	Development, testing
SQLite	Built-in	Local development, small datasets
PostgreSQL + pgvector	pip install neuromem-sdk[postgres]	Production, large-scale
Qdrant	pip install neuromem-sdk[qdrant]	Production, high-performance vector search

# PostgreSQL
storage:
  database:
    type: postgres
    url: postgresql://user:pass@localhost:5432/neuromem

# Qdrant
storage:
  vector_store:
    type: qdrant
    config:
      host: localhost
      port: 6333
      collection_name: neuromem

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Benchmarks

Evaluated on the LoCoMo benchmark (ACL 2024) — 10 extended conversations, 1,986 QA pairs across 5 difficulty categories.

vs. Competitors (Categories 1 + 4)

System	F1	Exact Match	Retrieval Hit Rate
NeuroMem v0.2.0	39.4	15.0%	36.7%
LangMem	32.7	11.7%	33.3%
Mem0	30.6	10.0%	21.7%

Full Benchmark (999 questions)

Category	F1	Description
Single-hop	37.1	Direct fact retrieval
Temporal	7.2	Time-based reasoning
Open-ended	9.0	Subjective, long-form
Multi-hop	41.7	Cross-memory reasoning
Adversarial	0.4	Unanswerable detection

Run benchmarks locally

# Head-to-head comparison
python -m benchmarks --systems neuromem mem0 langmem

# Quick smoke test (~2 min)
python -m benchmarks --quick

# Latency profiling
python -m benchmarks --latency

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API Reference

Core

NeuroMem.from_config(config_path, user_id)      # Initialize from YAML
NeuroMem.for_langchain(user_id, config_path)     # LangChain constructor
NeuroMem.for_langgraph(user_id, config_path)     # LangGraph constructor
NeuroMem.for_crewai(user_id, config_path)        # CrewAI constructor
NeuroMem.for_autogen(user_id, config_path)       # AutoGen constructor
NeuroMem.for_dspy(user_id, config_path)          # DSPy constructor
NeuroMem.for_haystack(user_id, config_path)      # Haystack constructor
NeuroMem.for_semantic_kernel(user_id, config_path) # Semantic Kernel constructor
NeuroMem.for_mcp(user_id, config_path)           # MCP constructor
NeuroMem.for_litellm(user_id, config_path)       # LiteLLM constructor

Memory Operations

memory.observe(user_input, assistant_output, template=None)
memory.retrieve(query, task_type="chat", k=8, parallel=True)
memory.retrieve_with_context(query, task_type="chat", k=5)
memory.search(query_string, k=10)
memory.consolidate()
memory.list(memory_type=None, limit=50)
memory.update(memory_id, content)
memory.forget(memory_id)
memory.explain(memory_id)
memory.close()

Graph & Discovery

memory.get_graph()                                # Export graph as {nodes, edges}
memory.find_by_tags(tag_prefix, limit=20)         # Hierarchical tag search
memory.get_tag_tree()                             # Tag hierarchy with counts
memory.get_memories_by_date(date)                 # Temporal retrieval
memory.get_memories_in_range(start, end, memory_type)

Summaries

memory.daily_summary(date)                        # Daily memory digest
memory.weekly_digest(week_start)                  # Weekly summary

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Architecture

NeuroMem (Facade)
  └── MemoryController
        ├── EpisodicMemory ──┐
        ├── SemanticMemory ──┤── MemoryBackend (Protocol)
        ├── ProceduralMemory ┘
        ├── SessionMemory (RAM-only)
        ├── MemoryGraph (entity index, backlinks, clusters)
        ├── MemoryQuery (structured query parser)
        ├── RetrievalEngine (multi-factor scoring)
        ├── ConsolidationEngine (LLM-powered)
        ├── DecayEngine (Ebbinghaus curves)
        ├── PriorityTaskScheduler (5-level queues)
        ├── IngestWorker (daemon thread)
        ├── MaintenanceWorker (daemon thread)
        └── Policies (salience, reconsolidation, conflict, optimization)

Storage Backends:
  ├── PostgresBackend (psycopg2 + pgvector)
  ├── QdrantStorage (qdrant-client)
  ├── SQLiteBackend (sqlite3)
  └── InMemoryBackend (dict)

Adapters:
  ├── LangChain (LCEL Runnable, ChatMessageHistory)
  ├── LangGraph (StateGraph nodes, BaseStore)
  ├── CrewAI (BaseTool subclasses)
  ├── AutoGen (callable tools, Teachability-style)
  ├── DSPy (Retrieve module, ReAct tools)
  ├── Haystack (@component pipeline nodes)
  ├── Semantic Kernel (@kernel_function plugin)
  └── LiteLLM (completion wrapper)

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Development

# Clone
git clone https://github.com/Vk-thug/neuromem-sdk.git
cd neuromem-sdk

# Install with dev dependencies
pip install -e .[dev]

# Run tests
pytest
pytest --cov=neuromem

# Code quality
black neuromem/ --line-length 100
ruff check neuromem/
mypy neuromem/

Test Coverage

Suite	Tests
Core (memory, retrieval, decay)	50+
Graph memory	26
Structured query	31
MCP server	26
Workflows	30
Framework adapters	42
Total	176

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Roadmap

• Temporal reasoning improvements (date extraction, time-aware retrieval)
• Adversarial query detection (calibrated "I don't know" responses)
• Distributed memory (multi-agent shared state with conflict resolution)
• Prometheus metrics export
• CI/CD pipeline with automated benchmarking

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Contributing

Contributions welcome. See CONTRIBUTING.md for guidelines.

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License

MIT

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Links

• PyPI
• Release Notes
• Changelog
• Issues

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Acknowledgments

Benchmark evaluation uses the LoCoMo dataset (Maharana et al., ACL 2024). Graph-augmented retrieval is inspired by HippoRAG. Memory template design draws from Obsidian knowledge management patterns.