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Use the public Merchant API when your backend needs to read commerce records, confirm order and payment status, or automate fulfillment. The Business app remains the place to create API keys, configure webhook endpoints, manage products, and operate Finance.
Endpoint pages are generated from the published OpenAPI contract. Use those pages as the source of truth for paths, parameters, response fields, and status codes.

Open the complete API Reference

Choose the correct public API surface, credential, and integration contract.

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Business integration paths

Merchant API

Understand the organization-scoped, server-side commerce API.

Authentication

Create and use a Merchant API key without exposing it to browser code.

Orders

Confirm payment status and build idempotent fulfillment.

Products and access

Work with products, subscriptions, customers, and entitlements.

Payment webhooks

Verify signed events and process retries safely.

Choose the right API

Distinguish Merchant API, webhooks, agent runtime, SuperAPI, and telemetry.
Use only the customer-facing contracts linked from this page. Undocumented services and routes are not public integration surfaces.