Compare
Flint Pay, compared with the tools you are choosing between.
Flint Pay is a payments API for US businesses that runs on Stripe's processing and includes the commerce system around the payment: orders, catalog and variants, inventory, promotions, sales tax, shipping, returns, invoices, subscriptions, and a hosted checkout and buyer account. Compare it with Stripe and the other tools US businesses weigh against it, need by need. Every outside claim links its source and the date it was checked.
3.79% + 35¢ on cards · no monthly fee · free sandbox · no credit card
Flint vs
Flint against one product, need by need.
Each page puts the other product's documented behavior beside what a Flint account does, row by row, and shows the code you would write to close the gap.
Flint vs StripeFlint runs on Stripe's processing and adds the orders, variants, inventory, promotions, tax, shipping, and returns you would otherwise build on Stripe yourself./compare/flint-vs-stripeFlint vs SquareFor businesses and developers selling online or in an app: Square's per-location plans, its Orders API fee with another processor, and the item refunds its API leaves to you, beside what a Flint account includes./compare/flint-vs-squareSquare vs Stripe for restaurantsFor teams building online ordering and QR pay-at-table: what Square's and Stripe's APIs leave to you, and the order that already carries modifiers, tabs, tips, and split checks./compare/square-vs-stripe-for-restaurant-softwareFlint vs PaddleFor US sellers weighing Paddle: its 5% + 50¢ and its ban on physical products, beside Flint's lower card rate, orders, inventory, shipping, and subscriptions that ship, with your business as the seller./compare/flint-vs-paddleFlint vs ShopifyFor stores on their own site: Shopify's monthly plans and third-party payment fee beside Flint's commerce API, with a worked cost example and its breakeven./compare/flint-vs-shopifyFlint vs MedusaFor teams weighing Medusa: the Stripe provider, webhooks, tax module, and servers you run on Medusa, beside a hosted commerce API with payments included and automatic US tax built in./compare/flint-vs-medusaMedusa vs Saleor vs VendureMedusa, Saleor, and Vendure compared on stack, hosting, price, and license, and what all three leave to you: the Stripe account, its webhooks on Medusa and Vendure, and US sales tax./compare/medusa-vs-saleor-vs-vendure
Alternatives
Ranked alternatives, with the numbers that decide.
Each page ranks the options for one job, Flint first, with who each one fits and its published prices.
Toast API alternativesToast's order and card APIs are for certified partners. Ranked alternatives for teams building restaurant software that creates checks and takes payments online, Flint first./alternatives/toast-apiStripe alternativesThe common Stripe alternatives ranked for US businesses selling online, each with its published price, and the one that keeps Stripe's processing and adds the commerce system./alternatives/stripeLemon Squeezy alternativesLemon Squeezy's 2026 update, its physical goods ban, and the alternatives ranked for US sellers, Flint first, with subscription import that never charges a period twice./alternatives/lemon-squeezyStripe Connect alternativesFor US vertical SaaS embedding payments: Connect's fees when your platform handles pricing and its liability choices, payfac-as-a-service providers ranked by published pricing, and the option with no platform fees./alternatives/stripe-connectSnipcart alternativesFor developers adding a cart to their own site: Snipcart's 2% on top of the gateway's fees beside Flint's card rate, with inventory and returns included and automatic tax as an add-on./alternatives/snipcartShopify Starter alternativesFor sellers who wanted Shopify Starter or the Buy Button: payment links and hosted checkout from any site or bio, with no monthly plan, and the Basic breakeven./alternatives/shopify-starterGumroad alternativesFor US sellers leaving Gumroad's 10% + 50¢ or selling physical goods: a card rate with processing included, shipping and inventory, and a plain note on tax./alternatives/gumroadSellfy alternativesFor US sellers paying Sellfy's monthly plan or nearing its yearly sales cap: no plan, no cap, processing included, automatic US sales tax as an add-on, and the cost math./alternatives/sellfySaleor alternativesSaleor Cloud's $1,599 Select plan, its Stripe and tax apps, and the alternatives ranked for US businesses, Flint first, with the cost math and its breakeven./alternatives/saleorBigCommerce alternativesFor stores facing BigCommerce's June 2026 caps, automatic upgrades, and Open Payment Provider Fee: the alternatives ranked, Flint first, with cost math and breakeven./alternatives/bigcommerceShopify Hydrogen alternativesFor headless storefronts on Hydrogen or Next.js Commerce: what still runs on Shopify, and the backend with payments that doesn't need a Shopify plan, Flint first./alternatives/shopify-hydrogenEcwid alternativesFor US sellers with a developer: Ecwid's paid plans, its paid-plan API, and the commerce API with no plan, with coupons, US sales tax, and subscriptions in every account and the breakeven./alternatives/ecwidHeadless commerce platformsThe best-known headless commerce platforms ranked for US businesses, each with how payments work and its starting price or quote-only terms, Flint first as the one with processing built in./alternatives/headless-commerce-platformscommercetools alternativesFor US teams pricing a commerce API: commercetools' unpublished, order-based pricing and its payment connectors and tax modes, beside a hosted API with Stripe processing and US sales tax at a published rate./alternatives/commercetoolsBest payment API for developersStripe, Square, PayPal and Braintree, Adyen, and Helcim ranked for developers building a US website or app, each with its published price, and the API with the commerce system and agent tooling built in./alternatives/best-payment-api-for-developers
Start
Try the commerce system on a free sandbox.
No credit card and no sales call. Create an order, take a test payment, and refund one line with its share of the tax.