Creative Blockchain
📷 Photography · portrait photography

Prohibit · Agent Pay

Photographers no longer chase invoices; clients sign EIP-3009 permits to unlock water-mark free assets. Each transaction triggers a Base settlement, instantly embedding the licensee's wallet address into the portrait's on-chain provenance. Pay for the rights you use, one frame at a time. The endpoint is priced in USDC over x402, so an autonomous agent can pay for itself without an API key.

x402 track · paid unlockAgent-payable endpoint· machine payments
Section · Onchain

The primitive.

full primer →

The portrait photography endpoint publishes its own price, so an autonomous agent can pay and retry with no API key — photographers watch a machine buy the answer beside a human doing the same thing.

Why this primitiveLoading details…

Kernel
an endpoint whose price, asset and payee are published in its own 402 response, so an autonomous agent can discover the terms, pay in USDC and retry with no API key and no signup
Drives the UI as
a side-by-side view of the human client and an in-page agent running the same request → 402 → pay → retry loop
Appendix · Secrets

Required keys.

METAMASK_PRIVATE_KEY
Deploys the QUIP verifier to your host chain. Fund on Sepolia via the Google Cloud faucet.
open ↗
SEPOLIA_RPC_URL
Host-chain HTTPS RPC endpoint. Any Sepolia provider works.
open ↗
ETHERSCAN_API_KEY
Required for npx hardhat verify after deploy.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the build prompt…
Open in Lovable ↗Sepolia Etherscan ↗
Appendix · Market

Market sizing.

TAM
…
SAM
…
SOM
…

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.

portrait photography
PortraitClaim Chain
Secure portrait ownership and licensing with NFT provenance minting. Every action is signed with a fresh WOTS+ one-time key.
collaborative editing
Darkroom · Agent Pay
Turn photo editing into a micro-transactional marketplace where every professional transform—color grade, mask, or retouch—is a paid 'pull' from a collaborator's private preset library. Each edit is an atomic transaction signed by your Privy wallet, instantly settling revenue to the contributor and committing the delta to the chain. No subscriptions, just pay for the specific human or AI expertise applied to your canvas. The endpoint is priced in USDC over x402, so an autonomous agent can pay for itself without an API key.
licensing exchange
SNAPSHOT · Agent Pay
Each request triggers an EIP-3009 transfer, instantly settling rights via a Base tx hash. No subscriptions; pay only for the pixels you pipe into your project or model. The endpoint is priced in USDC over x402, so an autonomous agent can pay for itself without an API key.
client agreements
SHUTTERPROOF · Agent Pay
A protocol for ephemeral, pay-per-clause photography service agreements. Instead of a bulky master contract, every milestone and usage permission is a micro-transactional event settled instantly on Base. The endpoint is priced in USDC over x402, so an autonomous agent can pay for itself without an API key.