Get Started with Outpay USDC Payments on Base

Choose a merchant or developer path, understand Outpay's non-custodial checkout model, and make your first crypto payment integration.

Who this is for

This section is for anyone setting up Outpay for the first time: a developer integrating the public API, or a merchant administrator using only the Outpay Dashboard.

Outpay has two entry points today:

Outpay Dashboard — create hosted checkouts and shareable payment links without writing any code.
Public v1 API — create and read checkouts, and list payments, using a scoped bearer API key from your own server.

Both paths produce the same non-custodial checkout: a customer pays native USDC directly to the merchant's registered Base wallet.

Quickstart

Go from an API key to a hosted checkout in one integration.

Authentication

Choose Dashboard sessions or a scoped public API key.

Core concepts

Learn how checkout, detection, confirmation, and settlement fit together.

Environments

Separate test and live credentials and configuration.

Only Base USDC is verified

The checked-in seed data and payment matcher support native USDC on Base only. Do not send another asset, or use another network, for a checkout created by this release.

Merchant onboarding — create a store and verify a payout wallet from the Dashboard.
API reference — the full public v1 endpoint contract.
Core concepts — the terms used throughout this documentation.