ChainMemory
Agentmemory
OpenMemory MCP
Pinecone
Memo.ai
Memori
cognee
MemoryLake
MemoryBase.app
Cursor Memories
EVA Online AI
knowbase.ai
LLM OneStop
MemMachine
MemoryPlugin
Memory Sync
ChainMemory gives your AI agents persistent memory that belongs to YOU โ not to a single vendor.
Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity โ no trust required.
Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.
MemoryBase is a cross-platform memory layer for people who use multiple AI tools daily. It syncs your conversations across ChatGPT, Claude, Claude Code, Cursor, and Gemini, so whatever you tell one AI is available to all the others.
Conversations get captured automatically as they happen, organized into projects and topics, and the relevant pieces surface in whichever tool you open next. You stay in control of what gets stored and what loads where.
Available as a Chrome extension and web app at memorybase.app. Free and Pro plans, with more integrations on the roadmap including OpenClaw, Slack, and Google Docs.
ChainMemory
MemoryBase.appAgentmemory - Persistent memory for Claude Code, Codex & coding agents
Cursor Memories - Memory system for Cursor agents
OpenMemory MCP - Your private, local memory layer for all AI tools
EVA Online AI - EVA is an all-in-one AI workspace that lets you chat with ChatGPT, Claude, Gemini, Grok, Perplexity, DeepSeek and more from a single interface โ with one unified credit system and side-by-side model comparison. Free plan available.
Pinecone - Search through billions of items for similar matches to any object, in milliseconds. Itโs the next generation of search, an API call away.
knowbase.ai - Knowbase is Dropbox and ChatGPT combined. You store your files and have access to all the information collected in them, by asking a question on the chat.