EverMemOS
FreeEverMemOS is an open source “memory operating system” from EverMind that adds durable, structured long term memory to AI agents. It focuses on letting LLM based assistants remember past interactions, build evolving user profiles, and reason with context instead of treating every prompt as a clean slate. Under the hood it uses a four layer architecture that mirrors aspects of human cognition: an agentic layer for planning, a memory layer for storage and recall, an index layer for embeddings and key value search, and an API / MCP interface layer that plugs into external systems.
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Key Features
Four-Layer Memory Design
Separates agent behavior, long term storage, indexing, and integration, so teams can drop EverMemOS in as a shared memory backbone across multiple agents and applications.
Structured MemCells and Multi-Level Memories
Converts raw conversations into atomic MemCell units, then builds episodes, profiles, preferences, semantic knowledge, and more, giving agents rich, queryable memories instead of loose text blobs.
Pricing
Open Source Core
- Free to use under the Apache 2.0 license for both personal and commercial self hosted deployments.
2$ /mo
Get StartedEnterprise and Hosted Offerings
- Any managed services
- enterprise support
- or private deployments are handled directly with EverMind and do not have public price tiers as of now.
Categories:
AI chatbotsAI agents
