> One integration, one API: tokenize cards, charge any channel with the token, unified webhook callbacks. Full docs and sandbox provided at onboarding.

Developers

# One integration, one unified API

Tokenize cards, charge any channel with the token, unified webhook callbacks — this page explains the overall integration approach. Full API docs, sandbox, and SDKs are provided at onboarding.

## Integration overview (3 steps)

### ① Tokenize on capture

Embed the secure capture element; the card is tokenized in the user’s browser, plaintext never hits your servers.

### ② Charge a channel with the token

Your backend charges via neutral forwarding using the token; smart routing/cascade/retry are handled by Flow (coming soon).

### ③ Webhook callbacks

Token, forward, and 3DS events call back in real time; unified transaction / refund / chargeback callbacks ship with Flow.

## Modules

### Vault API

Tokenization, network tokens, account updater, capture elements, charge by forwarding a token.

### Flow APIsoon

Smart routing, failure cascade, smart retries, 3DS orchestration, unified transaction ledger.

### Webhooks

Real-time token / forward / 3DS event callbacks (transaction callbacks ship with Flow).

### Sandbox & SDKssoon

Test environment and multi-language SDKs.

Full API reference, sandbox credentials, and SDKs are provided at onboarding. Want the integration docs first? Book a demo and we’ll walk your engineers through it.

## Ready to integrate?

Book a demo — we'll provide integration docs, a sandbox, and technical support.