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.

What GrindMap does

GrindMap is a free web calculator that ranks every major GTA Online money method by real net GTA$ per hour: gross payout minus fees, crew cuts, setup time, and upkeep. Most money guides quote gross numbers that overstate what you actually earn. GrindMap tracks what lands in your account per hour of play, and re-ranks everything for your exact situation.

Features

• Live rankings of every money method (heists, businesses, hustles), recalculated for your starting capital, hours per week, and risk tolerance
• Weekly event bonuses applied automatically every Thursday, so 2X and 3X weeks re-rank the board
• Goal Planner (Pro): set any money target and get the fastest route to reach it
• Empire Builder (Pro): the optimal order to buy businesses for your capital, with a 12-week projection
• Original public data: a statistics page with the full net $/hr dataset, free to cite with attribution

Pricing

The calculator, rankings, weekly data, and all guides are free. Pro unlocks the Goal Planner and Empire Builder for 4 euro per month.

GTA 6 ready

GrindMap covers GTA Online today and will have day-one money coverage when GTA 6 launches on November 19, 2026. Live example: our Kortz Center Heist guide gets tested payout data on July 14.