Stripe

Payment processing, subscriptions, invoicing and checkout APIs.

Best for: Taking card payments and subscriptions in an AI-built app.
Open source: no
Pricing: 2.9% + 30¢ per successful domestic card transaction; +1.5% international cards; +1% currency conversion; no monthly fee (US standard pricing). (source: official page, checked 2026-10-21)
Other Paymentss: Paddle
Last checked: 2026-10-21 (pricing 2026-10-21 · licence not checked)

See real apps built with AI: AI build tools · The Vibe Shipped 50

Pricing is copied from each tool's official page on the date shown and left out where we couldn't read it; prices change. Licences were checked on GitHub; 'unconfirmed' means not verified. No affiliate links.