
Sheet2DB
SheetBest
Stein
SheetDB
Sheet2api
API Connector by Mixed Analytics
Apipheny
Dropbase by Castodia
ChainMemory
Mem0
Memori
Agentmemory
Tempreon
cognee
TheSecondBrain.dev
Suprflo
ChainMemory gives your AI agents persistent memory that belongs to YOU — 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 — 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.
Sheet2DB
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SheetBest - Turn a Google SpreadSheet into a JSON Database API
Mem0 - Your private, local memory layer for all AI tools
Stein - Use Google Sheets as your no-setup database
Memori - Persistent memory from agent trace, not just conversation
SheetDB - Turn a Google Spreadsheet into a RESTful API
Agentmemory - Persistent memory for Claude Code, Codex & coding agents