Mem0 Alternatives

Direct alternatives to Mem0

If you came here from "mem0 alternatives", you probably want what Mem0 does: an API that pulls facts out of conversations, stores them per user and returns the relevant ones when the agent needs them. These are the closest options in the directory:

• MemorySync: the closest match in shape. A hosted memory layer with add and retrieve calls, memory compaction and per-tenant isolation, reached through an API, SDKs, a CLI or an MCP server.
• Letta: memory built into the agent itself rather than added from outside. Letta, formerly MemGPT, is a framework where agents manage their own in-context and archival memory. You build the agent in Letta instead of calling a memory API from your own code.
• past.dev: a memory API for work history rather than chat. It ingests events from the tools a team uses, resolves them into entities and answers questions about what happened on a project, over REST or MCP.
• PuppyOne: a shared context drive rather than conversation memory. It pulls in files, databases and SaaS tools and gives each agent scoped access over MCP, a REST API, the CLI, Git or SSH.
• screenpipe: local-first. It records screen and audio on your own machine and lets agents search that history through a local REST API or an MCP server.
• Linkly AI: local document search exposed to agents over MCP, for when the memory you need is your own files.

Where it runs narrows the list fast. Mem0 and Letta are open source you can self-host, with a hosted service on top. PuppyOne's core is open source too. MemorySync is hosted. past.dev is hosted, with a bring-your-own-cloud option on Enterprise. screenpipe and Linkly AI run on your own machine.