Payzum Blog

Crypto Payments Blog

Non-custodial, crypto-only payments — explained for the operators and developers who actually run the money. Pain, mechanics, and how Payzum solves it.

Private & international schools

Accept crypto payments as a private school — enrolment deposits, termly tuition and the families who pay from abroad

A school year is not one payment. It is an enrolment deposit in March, three or ten tuition instalments, a trip that has to be booked before half the parents have paid for it, and a front desk taking uniform and canteen money all day. A growing share of those families live in another country, pay in another currency, and send money on a rail that costs a percentage and arrives days later with the reference field mangled. Payzum is a non-custodial, crypto-only processor: every one of those moments is a payment link, an invoice, a recurring charge or a QR that settles USDC or USDT straight to a wallet the school controls, in seconds, with no acquirer in the middle and no chargebacks mid-year.

24 min read
Game studios & publishers

Accept crypto payments as a game studio

Studios opened direct web shops to keep the platform's commission — and inherited the platform's hardest job: fraud, global payment coverage and disputes on goods that are delivered in 400 milliseconds and spent the same evening. Top-ups, bundles, battle passes and founder packs in stablecoins, settled non-custodially to your own wallet, with one CSV batch for creators, modders and prize pools.

21 min read
Developers & APIs

Signed Webhooks for Crypto Payments: Verify Before You Ship

Your payment webhook endpoint is a public URL that moves money: anyone can POST to it, retries arrive twice, and on-chain payments are final. Here's how signed webhooks for crypto payments actually work — HMAC verification, idempotency, fast ACKs and reconciliation — and how Payzum's non-custodial flow means the funds are already in your wallet when the event lands.

17 min read
Non-custodial

A non-custodial stablecoin off-ramp shipped — and it exposes the half of the chain merchants never fixed

On September 18, 2026, Stable.com connected to Polygon's Open Money Stack so USDT and PYUSD holders can initiate a bank transfer straight from their own wallet, with no deposit into a platform account first. It is a small integration with a large implication: the exit from stablecoins was the last place merchants were still forced to hand over custody. Here's what it fixes, what it doesn't, and why the money-in side is the half you actually control.

19 min read
Payouts & Mass Payments

Mass Payouts: Polygon vs Arbitrum vs Base — Pick a Chain

All three settle stablecoins in seconds for cents, so speed and fees don't decide it. Gas token, finality semantics and where your recipients can actually off-ramp do. A practical guide to choosing the chain for your payout run.

16 min read
Agentic payments

Mastercard Agent Connect for merchants: they standardised your catalog, not your money

On September 9, 2026, Mastercard launched Agent Connect — one integration that makes a merchant's products, prices, availability and fulfillment readable by AI shopping agents. It is the first big agentic-commerce launch aimed at the seller. It also leaves the payment exactly where it was: a reversible card pull. Here's what that asymmetry costs, and the offer format that is already both.

18 min read
Solar & renewable installers

Accept crypto payments as a solar installer — the deposit, the equipment bill and the final balance

A solar job is not one payment. It is a deposit that has to clear before you can order modules, an equipment bill priced in dollars on net-30, a crew to pay on install week, and a five-figure final balance collected at commissioning — months after the customer's card was first charged and well inside the window in which they can still dispute it. Payzum is a non-custodial, crypto-only processor: every one of those moments is a payment link, an invoice or a QR that settles USDC or USDT straight to a wallet you control, in seconds, with no acquirer in the middle and no chargebacks.

24 min read