Circle Payments Network API

Route and settle stablecoin payments across Circle’s network with support for quotes, payments, transactions, and managed payments.

Use CPN if you’re a bank, fintech, or crypto platform connecting to a shared onchain settlement rail. Pick the integration pattern that fits your stack: direct API access where you operate your own wallets, or a fully Circle-run flow where Circle handles the underlying sub-accounts for you.

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API keys

Authenticate your requests with an API key.

Postman collection

Try the CPN API with Circle’s Postman collection.

Webhooks

Set up webhook subscriptions for CPN events.

Endpoint categories

Circle Payments Network

Operate your own wallets and settlement: configurations, quotes, payments, and transactions.

Managed Payments

Use Circle-managed sub-accounts for stablecoin payins and payouts.