NOWPayments

Pricing model: Pay-as-you-go Service fees: 0.5% for payments without exchange (merchant receives same crypto as payer); 1% for multi-currency payments, Fixed Rate payments, and when "fee paid by user" option is enabled. (Service fee is charged from the final payment amount before payout.) Network (blockchain) fees: Variable; charged per blockchain transaction and depend on blockchain/workload/speed. Non-custodial flow may incur network fees for deposit and payout; Custody incurs one network fee when sending to custody balance. Conversions / Custody: Conversions inside Custody are charged 0.5% service fee per conversion; mass payouts are not subject to NOWPayments service fees (only network fees). Setup / monthly fees: No setup or monthly subscription fees stated on the official pricing/docs pages. Example costs: For a $100 single-currency payment, service fee = $0.50 (0.5%). For a $100 payment requiring exchange, total service+exchange = $1.00 (1%). Notes: Fixed Rate Exchange option rounds total transaction fee to 1% when enabled; fiat conversion / on-ramp fees are documented separately on the site.

Source pages used: NOWPayments official Pricing and Help (Fees) pages.