Flux card processing accepts Visa, Mastercard, American Express, and Discover through one integration. Card data is captured in origin-isolated hosted fields, so it never touches your own servers, and payments settle in one to two business days.
Why businesses use it
Every major card
Accept Visa, Mastercard, American Express, and Discover through a single integration, online or in person.
Fast settlement
Card payments settle in one to two business days, so cash is not stuck for a week.
Volume discounts as you scale
Higher-volume merchants can move to custom interchange-plus pricing as monthly volume grows.
How it works
You drop Flux hosted fields into your checkout or take payments from the dashboard. Cards are authorized in real time, funds settle to your account in one to two business days, and every transaction lands in your dashboard and books automatically.
Simple, transparent pricing
Flux charges a flat 2.9% plus 30 cents per transaction, with volume discounts for higher-volume merchants and no setup fees or contracts. Accounts processing under $100,000 a year in card volume may be subject to a $20 monthly account fee. You can also pass the processing fee to the customer at checkout where local surcharging rules allow.
Frequently asked questions
Which cards can I accept?
Visa, Mastercard, American Express, and Discover, credit and debit, through one Flux integration.
How fast do card payments settle?
Card payments settle in one to two business days to your linked account.
What does card processing cost?
Flux charges a flat 2.9% plus 30 cents per transaction, with volume discounts for higher-volume merchants and no setup fees or contracts. Accounts processing under $100,000 a year in card volume may be subject to a $20 monthly account fee. You can also pass the processing fee to the customer at checkout where local surcharging rules allow.