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Move your integration to production. This is the first page of Launch. First finish Payments, Enrollment, and Discovery in the sandbox. Do not make production your first test. See Test a payment. Production is a configuration change. If you followed Get started, your server reads its environment and its key from .env at startup. Ship the build that you tested.

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What changes

Only these three values change.
INFLOW_ENVIRONMENT and INFLOW_API_KEY must always change together. A key works only against the dashboard that issued it. If you change one alone, every seller call fails.

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Move to production

1

Register a production Seller account

Register at app.inflowpay.ai. This account is separate from your sandbox account.A Developer account cannot take payments. Seller calls from a Developer key fail with 403 SELLER_ACCOUNT_REQUIRED.
2

Create a production API key

Create the key in the production dashboard. Store it in your deployment secret manager. Never commit it.
3

Set a production MPP secret

This step applies to MPP only. Generate a new secret.
The secret must be at least 32 bytes. It must stay stable across deploys, because it signs and binds your 402 challenges. A change invalidates every challenge already in flight.
4

Set the production environment

.env
5

Deploy the build you tested

Do not edit server.ts. The same build reads the new values at startup.
Never set a baseUrl. The SDK resolves the correct host from environment alone. A baseUrl sends live traffic to an unexpected host.

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Check the live endpoint

1

Confirm the challenge

Call your live endpoint with no payment. Expect a 402 and the header of each protocol.
2

Confirm what you advertise

Confirm that the output reports MPP and x402.
3

Take one small live payment

Price one endpoint at your smallest amount. Pay it yourself with the CLI. This payment settles real money.
4

Confirm the settlement

For a stablecoin payment, open app.inflowpay.ai and confirm that the payment reached your InFlow balance. For a card payment, confirm the payment in your connected Stripe account. Confirm that the amount matches.

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After you are live

  • Publish your service to the directory. The directory has no sandbox, so this step needs your live origin. See Publish to the directory.
  • Rotate your production key if you ever paste it outside your secret manager.
  • Keep the sandbox deploy. Test every change there before you ship it.

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Troubleshooting

For other errors, see Errors.

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Next step

Check your integration

Test Payments, Enrollment, and Discovery against the live service.
Last modified on October 15, 2026