blockwallets offers a NOWPayments-compatible API (change the base URL and keys) with a public rate of 1% per payment dropping automatically to 0.5%; NOWPayments charges 1% without exchange and 1.5% for multi-currency or fixed-rate payments, and supports 300+ coins, far more than blockwallets’ 17.
Data checked 2026-11-03 · Markdown
Side by side
Their figures come from their own website and official docs, linked at the bottom of the page. Prices change; their site is authoritative.
| blockwallets | NOWPayments | |
|---|---|---|
| Fee per payment | 1% per payment, lowered automatically by last month’s volume down to 0.5% (a public tier table, nothing to negotiate); no monthly or setup fee, free withdrawals | 1% for payments without exchange; 1.5% for multi-currency, fixed-rate and “fee paid by user” payments; plus blockchain network fees |
| Coins and networks | 17 coins (USDT, USDC, USD1, FDUSD, DAI, BTC, LTC, DOGE, BCH, TRX, BNB, ETH, POL, AVAX, OKB, SOL and TON) on 15 networks; USDT, USDC and other stablecoins are credited 1:1 in US dollars | 300+ cryptocurrencies |
| Where the money sits | Payments are credited in US dollars to your blockwallets balance; you request withdrawals to your own wallet whenever you like, or set them to be requested automatically (minimum $10.00; each is reviewed by a person, and a new payout address waits 24 hours before its first payout). Online servers hold only a read-only public key (xpub); the keys that move funds are used only in a signing environment isolated from the online services. Sweeps only go to fixed cold-wallet addresses; payouts to merchants are approved by a person and only go to the merchant’s registered withdrawal address | Two options: non-custodial (forwarded to your wallet after the service fee, with an extra network fee) or a custody balance |
| Switching cost | Point the base URL at https://blockwallets.io/nowpayments/v1 and use the new API key and IPN secret; payments, invoices, status and list endpoints work as before | — |
| Testing | Separate test credentials on public testnets; the payment page has a “simulate payment” button, so the whole flow costs nothing | — |
| Webhooks | The same x-nowpayments-sig (HMAC-SHA512) signature, so your existing verification code works; final states and partially_paid are sent, delivered up to 8 times in all (7 retries over about two and a half days) | IPN header x-nowpayments-sig: HMAC-SHA512 with the IPN secret over the alphabetically sorted parameters |
Which to pick
Switching
ipn_callback_url and redirect URLs only accept thesehttps://api.nowpayments.io/v1 with https://blockwallets.io/nowpayments/v1 and use the new keysDifferences: price_currency must be usd; a payment is valid for up to 12 hours (7 days at NOWPayments); no IPN for waiting or confirming. Full details in the migration guide.
blockwallets has compatible APIs for Cryptomus, NOWPayments and Coinbase Commerce, plus a native REST API and no-code payment links: every way to integrate.
FAQ
For receiving payments, yes: our NOWPayments-compatible API covers creating payments and invoices, status lookups, lists and IPN callbacks. Change the base URL and keys. Payouts, conversion and subscriptions are not available.
No. Our x-nowpayments-sig is the same HMAC-SHA512 of the sorted JSON with your IPN secret, exactly as in NOWPayments’ docs.
blockwallets charges 1% per payment, lowered by last month’s volume to 0.9% from $50,000, 0.8% from $100,000, 0.7% from $250,000, 0.6% from $500,000 and 0.5% from $1,000,000. NOWPayments lists 1% without exchange and 1.5% for multi-currency and fixed-rate payments (checked 2026-11-03).
We only list coins we scan ourselves and confirm with two independent data sources: currently USDT, USDC, USD1, FDUSD, DAI, BTC, LTC, DOGE, BCH, TRX, BNB, ETH, POL, AVAX, OKB, SOL and TON, on 15 networks. If you need a long tail of coins, NOWPayments is the better fit.
Yes. Compatible credentials come in test and live sets; test runs on public testnets and costs nothing.
Sources
Checked on 2026-11-03 against their website and official docs. Our figures are the defaults in blockwallets’ code (the published fee tiers and network list).
Test mode is free, with one-click simulated payments.