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SET DocsAPI reference and complianceUpdated 2026-11-10
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Paying an exact amount to the bank

SET Direct Deposit API · Live since 2026-11-09

The problem

SET's fee is the payee's, taken from what you send. If you promised a payee $100.00 and send 100.00 USDC to their Cash-Out Address, the bank receives less: 97.00 on the 3% plan.

Working out the gross amount yourself is easy to get wrong by a cent:

  • the fee is rounded to whole cents, half up;
  • the bank amount is whole cents;
  • dividing 100.00 by 0.97 gives 103.0927…, and rounding it to 103.09 happens to work at 3%, but other percentages and amounts do not always round the right way.

At 3%, 103.08 USDC arrives as 99.99.

The answer: netUsd

Ask for the net instead of the gross:

GET /api/partner/quote?netUsd=100.00

Each plan line gives amountUsdc: the least whole-cent amount to send so the bank receives at least netUsd after SET's fee.

PlanFeeamountUsdc for netUsd=100.00
payg3%103.09
pro1.5%101.52

For one payee, add their address: GET /api/partner/quote?netUsd=100.00&chain=base&address=0x…. The answer then uses that address's own fee and rail.

Rules

  • Send amountUsdc or netUsd, not both.
  • The minimum is checked on the amount you send. belowMinimum: true means that line would not reach the bank; see Amounts below the minimum.
  • It is an estimate. The provider's receipt for the payout is final, and payout.payment_processed carries what was paid.
  • SET checked the rule against 1,716 amounts at four fee percentages: each answer is the least amount that reaches the net.

What it is not

The payee still pays the fee. A platform cannot pay SET's fee for a payee instead: each payee has one Cash-Out Address per network and bank, carrying one fee. To make a payee whole, send the netUsd amount.