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NOWPayments alternative
NOWPayments is a merchant gateway: APIs, plugins, auto-conversion, and multi-coin acceptance for stores. Pemfy is a pay-link URL plus a swap desk — enough for getting paid in crypto, nowhere near a gateway stack. This page is for the technical buyer: how gateway integration actually works, where conversion happens, and what breaks at volume.
What NOWPayments is
NOWPayments lets merchants accept crypto through hosted invoices, APIs, and e-commerce plugins, with conversion and payout options behind a merchant account. Its depth is in the business plumbing: many coins, integrations, and reporting. It is a merchant product, not a consumer swap desk: to our knowledge it does not offer general wallet-to-wallet swapping.
The account is load-bearing, not decorative. It holds API keys, webhook endpoints, payout addresses, conversion preferences, and history. Everything a store needs to operate — and everything a casual peer payment does not. That account boundary is the cleanest line in this comparison: if you need machine-readable payment events, you need the gateway category.
Integration mechanics: invoices, webhooks, confirmations
A gateway sale flows through stages a bare link never sees. The store creates an invoice (amount, currency, expiry), the customer pays to a generated address, the gateway watches the chain, and on sufficient confirmations it fires a signed callback (IPN/webhook) to the store, which then fulfills the order. Each stage has engineering content: invoice expiry bounds volatility exposure; confirmation thresholds trade speed against reorg safety per chain (fast chains fewer, slow chains more); webhook signatures must be verified server-side because callbacks are forgeable HTTP like any other. Our pay link compresses all of this into "did coins arrive at the address" — adequate for a human watching one payment, unusable for a storefront fulfilling hundreds. If your checkout needs to mark orders paid without a human staring at a screen, the webhook is non-negotiable.
Auto-conversion and who holds volatility
Accepting ten coins while accounting in one requires conversion somewhere. Gateway auto-conversion swaps incoming payments to the merchant's settlement asset, moving volatility risk onto the conversion moment (plus spread). The alternative — receive everything raw — leaves the merchant running a multi-asset treasury with reconciliation per coin. Both are legitimate; the choice depends on accounting tolerance, not ideology. Our links do no conversion at all: the named token arrives as named, and any conversion is a separate manual swap. At peer scale that is fine. At store scale it is a bookkeeping job nobody wants.
Underpayments, overpayments, and expiry
Real customers underpay (fees deducted wrong), overpay (round numbers), and pay late (after invoice expiry moved the rate). Gateway machinery exists largely to classify these cases: tolerance bands for small underpayments, credit for overpayments, expiry with re-quote. A bare pay link has no policy — the coins either arrived or did not, and the human sorts it out. This is the scaling wall stated plainly: links work while a human can afford to inspect every payment. Past that volume, policy must be code, and code lives in gateways.
Overlap: peer scale only
One paragraph: Pemfy is pay links plus a swap desk, no account, wallet as session. Links name chain, token, wallet, amount; payer signs; embed snippet available. Named chains span EVM majors plus Solana, Tron, Bitcoin. No API, no webhooks, no conversion engine, no reporting, no mass payouts. Chat-scale payments, not commerce infrastructure.
Gateway against link
Audience: NOWPayments serves stores with volume. Pemfy serves one person asking another person for a specific coin.
Integration: NOWPayments has APIs, plugins, and signed callbacks. Pemfy has a URL and an embed snippet.
Order lifecycle: invoices, expiry, tolerance bands, fulfillment events on the gateway side. Arrival-or-not on ours.
Conversion: gateway auto-conversion to settlement assets. Our links settle in the named token, period.
Swap desk: Pemfy pairs pay links with a consumer swap desk. NOWPayments has no equivalent we know of.
Custody: both avoid holding your keys; the payer signs in both. Merchant-side custody and payout mechanics are their documented flow — read it, we do not summarize it here.
Fees and coins: not verified here — check their pricing page and our pay-link support per chain before committing.
When to pick NOWPayments instead
If you run a store — real volume, reporting needs, plugins, auto-conversion, machine-readable payment events — a gateway is the correct category and Pemfy is not in it. A pay-link URL does not replace settlement tooling, and pretending otherwise would cost you reconciliation weekends.
Mass payouts: payroll, affiliates, and batch mechanics
Gateways often serve the reverse flow too: one treasury paying many recipients — payroll, affiliate rewards, marketplace seller payouts. Batch mechanics differ sharply from single payments: transaction batching amortizes fees, per-recipient status tracking replaces single-arrival watching, and failures need per-line retry rather than whole-batch redo. Compliance multiplies: every payee is a screening surface, thresholds aggregate across the batch, and record-keeping must survive audits. Our pay links have no batch concept — one URL, one payer, one arrival. If your "payments" problem is actually a "payouts" problem, neither a link page nor a checkout invoice is the tool; mass-payout machinery is its own category with its own custody and approval workflows (who authorizes the batch, what quorum, what limits). Naming the direction — collecting vs disbursing — before comparing products saves the most common category error in this space.
Fiat settlement: where crypto revenue becomes money
Merchants eventually convert: suppliers and taxes accept fiat. Settlement paths range from gateway-managed conversion with bank payout, to exchange off-ramps, to OTC desks for size. Each step adds spread, timing, and compliance surface — and the total cost from customer coin to bank balance routinely exceeds the headline gateway fee by multiples. Planning backwards from settlement clarifies product choice: if the endpoint is a bank account in a specific currency, optimize the whole chain (acceptance asset, conversion venue, payout rail) rather than the acceptance fee alone. Our links end at coin arrival; everything downstream is the recipient's operation. That boundary is honest for peer payments and disqualifying for businesses — stated here so the right buyers self-select out early.
Questions we get about this comparison
Can I use Pemfy links for my store? Technically yes for trickle volume with manual reconciliation. Past a handful of payments a day, get a gateway — the webhook alone justifies it.
What is IPN and why does it matter? Instant Payment Notification: the gateway's signed server-to-server callback that your store trusts to mark orders paid. Without it, fulfillment needs a human watching arrivals.
Who pays the conversion spread? Whoever the product places it on — gateway merchants via conversion settings, our link users via separate manual swaps. Somebody always pays it; the question is only transparency.
How many confirmations are enough? Chain-dependent and policy-dependent: fast-finality chains fewer, probabilistic chains more. Gateways encode this per coin; our links leave it to the payer's wallet display.
Plugin setup reality: sandbox, webhooks, go-live
Gateway plugins promise minutes; budget an afternoon. The real sequence: sandbox credentials, test invoices across coins, webhook endpoint with signature verification (log raw payloads first, trust nothing), confirmation-threshold tuning per chain, expiry and tolerance settings matched to your margins, then a live micro-transaction end to end before opening the gates. Common integration bugs cluster predictably: unverified webhook signatures accepted blindly, order fulfillment on unconfirmed payments, hardcoded confirmation counts across chains with different finality, and expiry windows shorter than the slowest supported chain. Test the failure paths deliberately — expire an invoice, underpay one, double-pay one — because production will exercise them without your permission. Our links need none of this and offer none of its power; the setup cost is the entrance fee to machine-scale payments, and skipping it is why manual links exist.
What we did not verify
NOWPayments' current fees, coins, confirmation policies, and plan terms — check their site and docs, and run a live micro transaction through the sandbox before pointing real checkout traffic at any gateway. Confirm the webhook reaches your server, the signature verifies, and the order marks paid without human help. Repeat the drill for an expired invoice and an underpayment so the failure paths are tested before customers find them. On our side, pay links only work where the named chain and token are supported, and the payer still needs a funded wallet.
What does a multi coin treasury cost to run? Every accepted coin adds a reconciliation line, a confirmation policy, and a conversion decision. Ten coins means ten learned behaviors, or one gateway abstracting them into a single settlement asset plus a fee schedule. Small stores often start multi coin for marketing and consolidate to one settlement asset within a year once the bookkeeping bill arrives. Our links skip the question entirely by settling in the named token, which is freedom at peer scale and a missing feature at store scale.