ChainMemory
Agentmemory
OpenMemory MCP
Pinecone
Memo.ai
Memori
cognee
MemoryLake
Mengram
Supermemory
Byterover
Pieces for Developers
OpenMemory
Mem
Second Brain for AI
Mnexium AI
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
MengramAgentmemory - Persistent memory for Claude Code, Codex & coding agents
Supermemory - ai second brain for all your saved stuff
OpenMemory MCP - Your private, local memory layer for all AI tools
Byterover - Memory layer for smarter AI coding agents
Pinecone - Search through billions of items for similar matches to any object, in milliseconds. Itโs the next generation of search, an API call away.
Pieces for Developers - Centralized code snippet manager to streamline your workflow