Socratic
The North
Mathway
MyScript Calculator
ProjectOS Pro
PhotoStudy
Current
Mathquizily
ChainMemory
Mem0
Agentmemory
Memori
Tempreon
cognee
TheSecondBrain.dev
Suprflo
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.
Socratic
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The North - OKRs, Projects and Strategy
Mem0 - Your private, local memory layer for all AI tools
Mathway - Mathway is a freemium math solving app that helps you find the solutions to any math problem you can imagine.
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
MyScript Calculator - Perform mathematical operations naturally using your handwriting.
Memori - Persistent memory from agent trace, not just conversation