
AnkiDroid
Anki
Memrise
Quizlet
RemNote
Mochi
Duolingo
AnkiApp
ChainMemory
Agentmemory
OpenMemory MCP
Pinecone
Memo.ai
Memori
cognee
MemoryLake
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.
AnkiDroid
ChainMemoryAnki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
OpenMemory MCP - Your private, local memory layer for all AI tools
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
Pinecone - Search through billions of items for similar matches to any object, in milliseconds. Itโs the next generation of search, an API call away.