Gateway API

Access and manage a unified USDC balance across multiple blockchains with instant transfers in under 500 ms.

Gateway is permissionless and built around non-custodial Gateway Wallet contracts on each supported blockchain. Deposit once, then call the API from your app.

Get started

Gateway documentation

Learn how Circle Gateway works.

Supported blockchains

See which blockchains Gateway supports.

Webhooks

Set up permissionless webhook subscriptions.

Endpoint categories

Gateway

Read balances, request attestations, and inspect transfers.

Gateway Batch

Submit batched transfer authorizations.

Gateway x402

Settle and verify x402 payments.