Approved engagements only

Exact-price Base USDC checkout.

Use the time-limited checkout authorization MAKO issues after scope approval. Each authorization is bound to one product, one payer wallet, and exactly 2,500.000000 USDC.

An approval link is required.

The API rejects exact-price orders without a valid authorization. After payment, submit the transaction hash so MAKO can bind that confirmed transfer to this order only.

Return to qualification

Load an operator-issued approval link to view the approved address set.

These addresses, their Base chain binding, and their set membership are authenticated by the authorization.
The exact-price rail uses this sender address to avoid a fractional matching surcharge.
This is a constrained operator-issued scope ID, not buyer-controlled notes.
No checkout authorization loaded.