
ChainMemory
Tempreon
TheSecondBrain.dev
Memori
Agentmemory
OpenMemory MCP
Pinecone
Memo.ai
CleverDeck
Duolingo
Mondly
Mochi
SmartCards+
Anki
Yak Tack
Brainscape
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.
ChainMemory
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Tempreon - A personal memory layer for your AI tools, connected over MCP.
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
TheSecondBrain.dev - One Brain. Everywhere you work. One memory for Claude, ChatGPT, Cursor and every AI tool you use. Runs in your own Cloudflare account. Open source.
Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.
Memori - Persistent memory from agent trace, not just conversation
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.