mnemo-db 0.4.9

MCP-native memory database for AI agents

mnemo-db

PyPI distribution of Mnemo — an MCP-native memory database for AI agents.

pip install mnemo-db

The package directory and import path are still mnemo — only the PyPI distribution name has the -db suffix because the unqualified mnemo is held by an unrelated 2021 notebook project. Your code keeps saying:

from mnemo import MnemoClient

Quick start

from mnemo import MnemoClient

client = MnemoClient(db_path="agent.mnemo.db", agent_id="agent-1")

# Three primitives carry most workflows.
result = client.remember("The user prefers dark mode", tags=["preference"])
memories = client.recall("user preferences", limit=5)
client.forget([result["id"]])

# Mem0-compatible aliases also work:
# client.add(...), client.search(...), client.delete(...)

What's in the box

Surface	What
MnemoClient	Native PyO3 binding to the Rust engine — DuckDB storage, USearch HNSW vector index, Tantivy full-text index, hybrid retrieval, hash-chained audit log
MnemoMemoryToolServer	Anthropic memory_20250818 6-op handler. pip install 'mnemo-db[anthropic-memory-tool]'
MnemoLettaShared	Letta-style Conversations adapter for shared agent memory
S3Workspace / CloudflareR2Workspace	OpenAI Agents SDK GA snapshot store backends. pip install 'mnemo-db[openai-sandbox-s3]' or [openai-sandbox-r2]
MnemoAgentMemory (OpenAI), Mem0Compat, MnemoCheckpointer (LangGraph 1.x — ASMDCheckpointer is the back-compat alias), 12 more	Drop-in framework integrations. Install the matching extra.

Optional extras

pip install 'mnemo-db[langgraph]'              # LangGraph checkpoint
pip install 'mnemo-db[crewai]'                 # CrewAI memory
pip install 'mnemo-db[openai-agents]'          # OpenAI Agents SDK
pip install 'mnemo-db[claude]'                 # Claude Agent SDK
pip install 'mnemo-db[anthropic-memory-tool]'  # memory_20250818
pip install 'mnemo-db[openai-sandbox-s3]'      # S3 workspace backend
pip install 'mnemo-db[openai-sandbox-r2]'      # Cloudflare R2 workspace backend
pip install 'mnemo-db[benchmark]'              # LoCoMo / LongMemEval harness

Each extra fails closed if not installed — from mnemo import MnemoMemoryToolServer will raise ImportError cleanly when [anthropic-memory-tool] isn't on the path.

License + source

Source: https://github.com/sattyamjjain/mnemo. Apache-2.0.

Documentation: https://github.com/sattyamjjain/mnemo#readme. Issues: https://github.com/sattyamjjain/mnemo/issues.