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Buyers pay in crypto on a NOWPayments hosted invoice page. Gamecart needs two values from your NOWPayments account: an API key and an IPN secret key. Gamecart sends the notification URL with every invoice, so you don’t configure one in NOWPayments.

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Get the API key in NOWPayments

  1. Open the NOWPayments dashboard and sign in.
  2. Go to Store Settings > API keys.
  3. Create a key and copy it.

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Get the IPN secret key

  1. In the same Store Settings area, open Instant payment notifications.
  2. Generate an IPN secret key and copy it.
Gamecart uses this secret to verify that each payment notification really comes from NOWPayments. To test first, create the keys in the NOWPayments sandbox instead.

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Add it in Gamecart

  1. Open Settings > Gateways and click Add gateway.
  2. Click Add on Crypto (NOWPayments).
  3. Paste the values in API key and IPN secret.
  4. Turn on Sandbox mode only if the keys come from the NOWPayments sandbox.
  5. Click Save Configuration.
  6. Turn on the switch in the gateway list when you are ready to take payments.
If you later replace a key, paste the new value and save again. See Payment gateways to reorder or remove the gateway.