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Reclack has two environments. They share one API host, one set of endpoints and one object model. The key you present decides which one you are in.
Sandbox on the left with test tokens from a faucet, live on the right settling real money to your address.Sandbox on the left with test tokens from a faucet, live on the right settling real money to your address.

The same objects and the same events, on test chains or on mainnet

Because the two environments share their shapes, the code you write against sandbox is the code you ship. Going live is a key swap, not a rewrite.

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Working in sandbox

Create a sandbox key, point your integration at it, and build the whole flow: catalog, checkout, subscription, usage, invoice, webhook. Nothing in sandbox can move real value, so you can be as rough with it as you like. Payments in sandbox still need test funds in the wallet that is paying. The hosted checkout tells the payer which network it expects.

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Moving to live

1

Register a settlement address

Each network you accept needs an address you control. Add them in the dashboard under Settings, then Settlement, or through the settlement accounts API.
Check the address twice. A payment sent to the wrong address is gone, and neither Reclack nor the network can recover it.
2

Mint a live key

Create a key with only the permissions your integration uses, and store it where your sandbox key is not.
3

Point your webhooks at production

Endpoints are configured per environment. The live endpoint should be the one your production service listens on, with its own signing secret.
4

Run one real payment

Take a small payment through the live path before you send customers to it. It confirms the settlement address, the webhook endpoint and your handler in one go.

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Telling environments apart in your code

The key prefix is the simplest signal, and it is the one Reclack itself uses:
Objects also carry their environment, so a record that reaches your database can say which book it belongs to without you inferring it from the key that fetched it.