Mem0
The universal persistent memory layer for AI agents & LLM apps
About Mem0
Mem0 (formerly Embedchain) is a universal, persistent memory architecture designed to solve the critical context amnesia problem in modern AI applications. While foundational LLMs forget user preferences and past interactions the moment a session ends, Mem0 maintains a continuous, self-improving memory graph across user sessions, agents, and applications. With Mem0, developers can build personalized AI assistants, customer support agents, and autonomous workflow bots that remember user preferences, past project decisions, and communication styles over months and years. Mem0 operates as both an open-source self-hostable Python/TypeScript library and a managed cloud platform, providing sub-100ms vector search, episodic memory extraction, and automated memory consolidation without manual prompt engineering.
Mem0 utilizes a multi-layered memory architecture comprising short-term working memory, long-term episodic memory, and semantic user preference graphs. When a user interacts with an AI agent, Mem0 automatically analyzes the conversation, extracts persistent facts, updates existing memory records, and prunes conflicting or redundant information. Under the hood, Mem0 integrates with leading vector databases including Qdrant, Pinecone, Chroma, and pgvector. When queried, it retrieves only the most relevant memories for the current context, minimizing token consumption while maximizing personalization accuracy. Mem0 supports multi-agent shared memory, allowing a team of specialized agents (such as a research agent and a coding agent) to collaborate with synchronized awareness of the user's ongoing project state.
Install the open-source `mem0ai` Python package or create an account on the Mem0 Cloud platform.
Initialize Mem0 with your preferred embedding model and vector database backend.
Call `memory.add(messages, user_id='user_123')` after conversational interactions to extract persistent facts.
Query `memory.search(query, user_id='user_123')` to retrieve relevant past context in under 50ms.
Inject retrieved memories into your agent's system prompt to deliver hyper-personalized responses.
Capabilities & Features
Common Use Cases
agent-memory
personalized-chatbots
user-profiling
long-term-context
Frequently Asked Questions
Is Mem0 open source?
Yes, Mem0's core library is open-source (Apache 2.0) on GitHub with over 20,000 stars, allowing you to self-host with local vector databases.
How does Mem0 differ from basic vector databases like Pinecone?
A vector database only stores raw text embeddings. Mem0 provides intelligent memory extraction, entity resolution, conflict updating, and automatic context ranking specifically designed for AI agents.
Can multiple AI agents share the same user memory in Mem0?
Yes, Mem0 supports shared memory namespaces across different agents, enabling multi-agent workflows to maintain synchronized awareness.
Free Plan
Open-source Python/Node package 100% free; Managed Cloud free tier offers 1,000 memory operations/month.
Paid Plan
Cloud Pro plan starts at $19/month for 50,000 memory operations, user segmentation, and sub-100ms vector retrieval.
Pros & Cons
Open-source core library with complete self-hosting and privacy control
Automatic memory extraction, deduplication, and conflict resolution
Multi-agent shared memory support for synchronized agent swarms
Sub-100ms retrieval latency with minimal token consumption overhead
Native integrations with OpenAI, Anthropic, LangChain, and CrewAI
Managed cloud tier charges based on memory operations at scale
Requires careful user ID namespace design for multi-tenant SaaS apps
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