
ChainMemory
OpenMemory MCP
Agentmemory
Memori
Tempreon
Pinecone
Memo.ai
Geniuz
Scriptyard
Obsidian.md
iA Writer
AFFiNE
Supernotes
Basecamp
Porcupine
Typerino
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
ScriptyardOpenMemory MCP - Your private, local memory layer for all AI tools
Obsidian.md - A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
iA Writer - Minimal Design, Maximum Focus
Memori - Persistent memory from agent trace, not just conversation
AFFiNE - All in one KnowledgeOS, Open alternative to Notion&Miro.