Crossmint takes care of
- PCI-compliant card vaulting and tokenization
- Visa VIC and Mastercard Agent Pay integrations
- Non-custodial wallet infrastructure and onramps
- Limit enforcement and user authorization flows
- Direct API checkout via Fast Checkout
Payment methods
How users fund agent payments, with controlled access to spending sources.Virtual cards for agents
Users securely save their card once, then derive virtual cards with scoped limits for their agents. Cards are tokenized via Visa VIC, Mastercard Agent Pay, and more.
Stablecoin wallets
Non-custodial, user-controlled wallets that grant agents scoped spending access.
Payment Flows
How agents execute payments across checkouts, APIs, and machine-to-machine paths.Browser Checkouts
Make your agent drive a browser and complete the checkout form using a virtual card. Works anywhere cards are accepted.
x402
HTTP-native micropayments where agents pay in stablecoins on a per-use basis.
Fast Checkout
A single API call for checkout at supported merchants in the US (Amazon and Shopify stores). No browser needed.
MPP
A protocol for agent-to-agent and service-to-service payments. Best for programmatic machine economies.
Pick your path
Use this table to choose the right integration:| If your agent needs to… | Use | Pay via |
|---|---|---|
| Buy from any website with a checkout | Card | Browser Checkout |
| Pay per API call or to another agent (micropayments) | Stablecoin | x402 or MPP |
| Buy from Amazon, any Shopify store, and other supported US merchants | Card or stablecoin | Fast Checkout |
Get started
How agents pay
The full mental model, payment methods, limits, and destinations.
Cards quickstart
Get an agent paying with virtual cards.
Wallets quickstart
Get an agent paying with stablecoins.