What a crypto payment API does at checkout
A crypto payment API lets a business accept crypto at checkout, watch blockchain confirmations, and settle to dollars or coins. Refunds are manual.
Vahe HakobyanEditor-in-chief
Updated Oct 6, 20263 min readFact-checked
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- The API builds a payment address or link for each order.
- It watches confirmations and marks the invoice paid.
- Settlement can hold coins, convert to dollars, or use your wallet.
The API handles the address, the monitoring, and the confirmation count. Your store keeps the order logic and the pricing.
What is a crypto payment API?
A crypto payment API is software a business connects to a checkout so customers can pay in cryptocurrency. It creates the payment request and shows a wallet address or a hosted page. The provider connects to the blockchain, often through node infrastructure.
How does a payment API work?
For each order the API creates a fresh address and watches for a transfer. When the network reaches the provider's confirmation threshold, the invoice turns paid and a webhook tells your order system to release the goods.
What rules and taxes apply?
In the US, a processor that moves money for others usually registers with FinCEN as a money transmitter under the Bank Secrecy Act and screens its customers. The IRS treats crypto as property, so a customer paying with coins may owe capital gains tax.
What are its limits and differences?
A confirmed crypto payment cannot be reversed, so a refund is a new transfer you send back. An underpayment leaves the invoice short, and a busy network delays confirmation.
- A card gateway can reverse a charge; a crypto payment cannot be pulled back.
- A card gateway approves in seconds; a crypto payment waits for confirmations.
- An exchange API trades and manages balances; a payment API creates invoices and addresses.
Frequently asked questions
Not always. Many providers offer a hosted page or a plug-in for common store platforms, but linking the payment status to your order system usually takes a developer.
No. Each provider supports its own set of coins and networks, and that set changes over time.
Usually the provider, which runs the receiving wallets. Some providers let you set your own address so coins reach a wallet you control.
