Private key definition

Private key is a secret cryptographic value that authorizes wallet spending and must never be shared with a gateway plugin.

Why it matters

Merchants evaluating CoinPayments, CoinPayments Legacy, CoinPayments v2, or another crypto payment gateway should understand this term before mapping checkout, fulfillment, refunds, and support processes.

Related reading

Start with our CoinPayments review or the CoinPayments integration guide.