smartscale
Credit-card-calibrated visual measurement — extract real-world object dimensions from a photo using a reference object. 100 FREE calls/day, then $0.50/call: pay via create_payment, convert to credits with redeem_payment (credits never expire); A2A settles via x402/escrow. Bundles with protogen (measure → CAD). Viridis Agent Fleet — rails free forever. Genesis receipts: github.com/jdhart81/viridis-agent-fleet/blob/main/docs/GENESIS_RECEIPTS.md