Crypto Payments APIs
Crypto payment APIs let a site or app accept coins instead of reading market data. CryptAPI and Coinremitter are free: CryptAPI generates payment addresses with webhook callbacks and needs no key, while Coinremitter adds invoices and withdrawals. NOWPayments supports 350+ currencies with auto-conversion and subscriptions, BlockBee forwards funds to your own wallet, and OpenNode handles Bitcoin and Lightning with fiat conversion.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
BlockBeeAccepts payments in 100+ cryptocurrencies and forwards funds directly to your own wallet. Crypto › Crypto Payments | Paid | API key | JSON | — | Live |
CoinremitterCrypto payment gateway: create invoices, wallet addresses and withdrawals, and accept Bitcoin and altcoins. Crypto › Crypto Payments | Free | API key | JSON | — | Untested |
CryptAPIGenerates payment addresses and webhook callbacks to accept cryptocurrency payments across 60+ coins. Crypto › Crypto Payments | Free | None | JSON | Unlimited | Live |
NOWPaymentsAccept payments in 350+ cryptocurrencies with invoices, auto-conversion, subscriptions and mass payouts. Crypto › Crypto Payments | Paid | API key | JSON | — | Live |
OpenNodeAccept Bitcoin and Lightning payments via hosted checkout or charges, with auto-conversion to fiat. Crypto › Crypto Payments | API key | JSON | — | Live |
BlockBeePaidLive
Accepts payments in 100+ cryptocurrencies and forwards funds directly to your own wallet.
API key · JSON
—
OpenAPI spec · llms.txt
CoinremitterFreeUntested
Crypto payment gateway: create invoices, wallet addresses and withdrawals, and accept Bitcoin and altcoins.
API key · JSON
—
no machine-readable spec
CryptAPIFreeLive
Generates payment addresses and webhook callbacks to accept cryptocurrency payments across 60+ coins.
None · JSON
Unlimited
llms.txt
NOWPaymentsPaidLive
Accept payments in 350+ cryptocurrencies with invoices, auto-conversion, subscriptions and mass payouts.
API key · JSON
—
no machine-readable spec
OpenNodeLive
Accept Bitcoin and Lightning payments via hosted checkout or charges, with auto-conversion to fiat.
API key · JSON
—
no machine-readable spec
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Choosing a Crypto Payments API
Is there a free Crypto Payments API?
Yes. CryptAPI and Coinremitter are free to use.
Which Crypto Payments APIs work without an API key?
CryptAPI needs no key or sign-up, so you can try it with a plain request.
Can I call a Crypto Payments API from front-end JavaScript?
CryptAPI allows cross-origin requests and needs no key, so it works straight from the browser. For the others, call them from your server so your key stays private.
Can I use Crypto Payments APIs in a commercial project?
NOWPayments, CryptAPI, OpenNode and BlockBee permit commercial use.
Which Crypto Payments APIs work with AI agents?
BlockBee publishes an OpenAPI spec for generating clients and tools.
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Related: Payments APIs