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Sunset, archived and deprecated AI memory tools
Projects that were sunset, archived, deprecated or moved, each with the source that says so. If you depend on one, the tool page shows what the maintainers point to instead.
Moved projects are still maintained under a new name or repository.
11 tools · docs checked 2026-11-09
| Tool | Works with (per docs) | Runs | Transport | License |
|---|---|---|---|---|
| LongMemory (CaviraOSS, formerly OpenMemory) moved Local persistent memory store with MCP, HTTP API and session import from many coding agents. | ChatGPT, Claude Code, Codex, VS Code / Copilot, Gemini CLI, Cline, OpenCode | Runs locally | stdio, Streamable HTTP | Apache-2.0 |
| EverOS (formerly EverMemOS) moved Local-first, Markdown-native memory layer for agents, with a cloud option and an MCP package (everos-mcp). | Claude Code, Codex, Claude Desktop, Cursor | Local or hosted | Unknown | Apache-2.0 |
| Letta (MemGPT) moved Stateful agents with self-editing memory (formerly MemGPT). Active source has moved to letta-code. | Not named | Local or hosted | Unknown | Apache-2.0 |
| mem0-mcp-server archived Wrapped the hosted Mem0 Memory API as an MCP server. Repository archived. | Claude Desktop, Claude Code, Cursor, VS Code / Copilot, Windsurf, OpenCode | Hosted | Streamable HTTP | Apache-2.0 |
| ByteRover CLI (formerly Cipher) archived Portable memory layer for coding agents: curates project knowledge into a context tree and syncs it to the cloud. | Claude Code, Cursor, Windsurf, Cline | Local or hosted | Unknown | Elastic-2.0 |
| Acontext archived Treated agent skills as a memory layer. No longer maintained and archived. | Claude Code | Local or hosted | Unknown | Apache-2.0 |
| Kernel Memory archived Memory service for users, teams and apps (RAG over documents) that started at Microsoft. Now an archived research project. | Not named | Runs locally | Streamable HTTP | MIT |
| Supermemory MCP (v1 repo) deprecated The original "Universal Memory MCP". The README says MCP v1 is being deprecated and code now lives in the Supermemory monorepo. | Not named | Hosted | Streamable HTTP | MIT |
| Motorhead deprecated Memory and retrieval server for LLMs backed by Redis. Deprecated. | Not named | Runs locally | Unknown | Apache-2.0 |
| Weaviate MCP server (standalone) deprecated The standalone Weaviate MCP server. Deprecated: MCP is now built into Weaviate itself. | Not named | Local or hosted | Streamable HTTP | Unknown |
| OpenMemory (by Mem0) sunset Mem0's local-first MCP memory app. Sunset; code removed from the mem0 monorepo and preserved as a read-only snapshot in mem0ai/openmemory. | Not named | Runs locally | Unknown | MIT |
Client support is what each vendor's docs say. MemoryStack doesn't test tools. How to share one memory across your bots.