Yes: a separate test environment with sk_test_ keys, test payment providers and its own data. Switch to it from the dashboard.

Yes. It's open source under AGPL-3.0 and runs with one docker compose command.

Subscription and usage billing for SaaS

Plans, trials, metering and invoices behind one API, with checkouts that take mobile money and cards in your customers' currencies.

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Pricing models

Flat, graduated, volume, package and percentage pricing
Usage events metered and billed at the period end
Trials, upgrades and downgrades now or at period end
Coupons, add-ons, taxes, credit notes and prepaid wallets

Developer first

A REST API with an OpenAPI spec, SDKs for TypeScript, Python and PHP, signed webhooks, idempotency keys and a sandbox with its own test keys. Everything the dashboard does, your code can do.

Questions

Is there a sandbox?: Yes: a separate test environment with sk_test_ keys, test payment providers and its own data. Switch to it from the dashboard.
Can I self-host it?: Yes. It's open source under AGPL-3.0 and runs with one docker compose command.