for developers

make every request count.

Connect wallet payments to the resources you deliver. Start with a price, an order, and a verified Ethereum receipt.

four steps to paid access.

01
define the resource
Choose what your customer receives and set an exact USDC or ETH price. Keep protected content on your backend.
02
create the order
Bind the payer, currency, amount, recipient, and payment window to an order before requesting approval.
03
verify settlement
Check the Ethereum transaction and its receipt. Repeated requests must not create another charge.
04
deliver access
Release the resource after verification and keep the order recoverable across refreshes and interruptions.

start from the working interface.

The builder brief demonstrates the order API and paid-resource boundary. The documentation covers the implemented endpoints and recovery behavior.

inspect requirements

# Read the resource's payment requirements
curl -i http://localhost:4020/api/demo/research

# Read payment configuration and available currencies
curl -s http://localhost:4020/api/config

# Complete checkout, then retrieve the resource with your paid order
curl -i http://localhost:4020/api/demo/research \
  -H "Authorization: Bearer <paid-order-id>"

four steps to paid access.

define the resource

create the order

verify settlement

deliver access

start from the working interface.