Hammer · x402
A high-stakes bidding protocol where every bid is a sealed commitment requiring a 0.01 USDC x402 'Skin-in-the-Game' fee. This eliminates bid shading and ghost bidding by making every price discovery action a micro-settled transaction on Hedera. Pay per bid, pay per provenance check, and pay to reveal the final hammer price.
The primitive.
Access to the art auction transparency engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so painters — or the agents working for them — pay per query and get a HashScan receipt every time.
Why this primitiveBy turning bids into paid micropayments, we filter for genuine intent and create a sustainable revenue model for auction houses that scales with activity rather than just commissions.
Required keys.
Add these in your Lovable project under Settings → Secrets before pasting the prompt below.
The build prompt.
Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →
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Market sizing.
Indicative figures for hackathon pitches — refine with your own research before raising.