Sparelane Merchant Developer Help

Sparelane helps merchants demonstrate consumer-authorised payment preferences, mandates, bill submission and fictional payment outcomes in a controlled sandbox.

Availability: The external merchant sandbox API is live for approved controlled pilots at https://api.sandbox.sparelane.com.au/v1.

This portal is public-facing merchant documentation. It intentionally excludes internal architecture, staff administration, database operations, deployment runbooks and private sandbox data.

What You Can Build Against

Merchant API

Create customers, initiate link authorisations, submit bills, run fictional sandbox simulations and inspect payments.

Consumer Consent

Consumers control profile linking, mandates and payment method authorisation outside merchant API credentials.

Webhooks

Register HTTPS endpoints, rotate signing secrets and verify signed fictional payment events.

Start Here

1. Read the integration overview.
2. Follow the quickstart.
3. Download the Postman collection.
4. Review the API reference.