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.

Agentic payments

Claude commerce agents ship without a wallet — payments just became the seller's job

On September 2, 2026, Anthropic open-sourced Claude Commerce Agents: an Apache-2.0 blueprint with two reference agents — a shopping agent that searches the catalog, compares options and builds the cart, and a merchant agent that handles inventory, pricing and marketing — plus implementations for retail, travel, telecom and ticketing. Visa, Mastercard, Shopify and Accenture signed on as partners; Shopify and Priceline already run customer-facing agents on Claude. The most important part of the release is what it does not contain: no payment protocol, no checkout, no wallet. Anthropic states that no transaction routes through it — payment stays with the seller, through an existing checkout or an agentic payments provider. Read next to OpenAI retiring in-chat checkout in March after conversion ran roughly three times below the retailer's own site, the industry has converged on a division of labor: the AI vendor supplies the shopping brain, and the seller supplies the rail the buyer — human or agent — actually pays on. This analysis walks through what the blueprint includes, why the missing wallet is the real announcement, and what a seller can do about it today: a stablecoin checkout an agent can hand to its human, and x402 endpoints an agent can pay by itself, non-custodial in both cases.

12 min read
Flight schools

Accept crypto payments at your flight school

A flight school sells the most expensive tuition a private business collects, burns it down hour by hour against a prepaid account, and increasingly sells it to cadets whose money lives in another banking system. When the wire is late, the aircraft is on the ramp, the instructor is rostered and the cadet is grounded — over a payment, not the weather. Tuition instalments and hour-block top-ups as stablecoin invoices referenced to the student, links for checkride fees a parent pays from abroad, a QR at the front desk, subscriptions for sim clubs, and one CSV for freelance instructors — non-custodial, straight to a wallet the school controls.

22 min read
Stablecoins

Solana Transaction V1 lands September 9 — and every upgrade in it is aimed at someone other than the merchant

On September 9, 2026, Solana activates Transaction V1 on mainnet: the maximum serialized transaction grows from 1,232 to 4,096 bytes, config values move into the message header, and address lookup tables disappear from the new format. It arrives in the middle of a six-week rebuild of the rail — a phased rent reduction targeting a 90% cut to token account storage costs began the week of August 31, and Alpenglow, which replaces Solana's consensus and takes finality from 12.8 seconds to roughly 150 milliseconds, is targeted for October. Solana already carries a large share of real stablecoin payment volume, so this is not abstract infrastructure news: it is the rail a growing number of businesses get paid on being rebuilt underneath them. This analysis reads what each upgrade actually unlocks — zero-knowledge proofs for confidential balances, BLS aggregation for bridge attestations, nested multisig — asks who each one is for, and lands on the uncomfortable answer: the payer, the developer, the bridge and the institution, in that order. Nothing in Transaction V1 changes the one question a business has to answer before it accepts a single stablecoin, which is who holds the money between the customer's payment and the merchant's wallet. That question is not a protocol problem, and no upgrade on the roadmap solves it.

18 min read
Self-storage

Accept crypto payments at your self-storage facility

Nobody cancels a storage unit on purpose. They cancel because a card expired, a debit bounced, or the tenant moved to another country and their bank stopped cooperating — and then you are running an overlock and a lien process over a payment that was never actually refused. Recurring stablecoin subscriptions for the monthly rent, invoices referenced to the unit number, payment links for prepaid months and move-in fees, a QR at the counter for locks and boxes, and one CSV for the cleaning crew and the security patrol — non-custodial, straight to a wallet you control.

25 min read
Stablecoins

Singapore's stablecoin rules for merchants: MAS defined the label, not the checkout

On September 1, 2026, the Monetary Authority of Singapore published draft legislation to write its single-currency stablecoin framework into the Payment Services Act 2019 — a standalone stablecoin issuance licence, a protected "MAS-regulated stablecoin" label with criminal penalties for misuse, 100% segregated reserves with independent attestation, par redemption, a flat prohibition on paying interest, quarterly stress testing, board-approved wind-down plans, and AML rules that expect issuers to trace, freeze and burn. Consultation closes October 16, 2026. It is the most complete stablecoin rulebook in Asia and it is worth reading closely, because three of its provisions land directly on businesses that get paid in stablecoins even though not one line of the draft is addressed to them: the freeze-and-burn expectation, the permanent end of the float argument, and a new power to designate any stablecoin — including foreign ones like USDT and USDC — as systemic and have Singapore venues delist it. This analysis takes the draft apart provision by provision, explains what each one changes for a business that accepts stablecoins, and sets out the merchant-side answer: token-agnostic, chain-agnostic acceptance settling non-custodially into a wallet the business controls.

20 min read
Senior care

Accept crypto payments at your senior care home

The resident lives here. The person who pays lives four thousand kilometres away, and has to send the same fee on the first of every month for years. Recurring subscriptions for the monthly fee, invoices with a resident reference and overpayment detection when three siblings split it, payment links for the admission fee and the extras, a QR at reception on visiting day, and one CSV that pays the night cover, the physio and the visiting hairdresser — non-custodial, straight to your own wallet.

28 min read
Stablecoins

The bank consortium stablecoin: 21 banks committed to a dollar, none to acceptance

On September 1, 2026, twenty-one of the largest financial institutions in the world — Bank of America, Citi, Goldman Sachs, Wells Fargo, UBS, Deutsche Bank, Santander, BBVA, MUFG, Standard Bank and eleven others — committed to forming a company in the second half of 2026 that will issue a US dollar stablecoin in the first half of 2027, with a euro token named as the next priority. It is the largest single commitment to public-blockchain dollars ever made by incumbent banking, and it settles an argument: dollars on public chains are now the default assumption at the top of finance, not a fringe position. But read what was actually decided versus what was left blank. Decided: the consortium, the currency, the regulatory posture, the timeline. Undecided: the company name, the token name, the blockchain networks, the reserve custodian, the governance structure and the redemption terms. And nowhere in the announcement is there a single sentence about merchant acceptance — who takes the token at a checkout, what accepting it costs, whether a payment made with it can be reversed, or where the money lands when a business gets paid. This analysis reads the September 1 commitment line by line, puts it next to the state of actual stablecoin merchant acceptance (4% of top-50 US merchants, 8% in Europe, 12% in Latin America), and explains why the number of dollar tokens a merchant is asked to support is going up while the number of businesses able to accept any of them is barely moving.

20 min read
Home services & trades

Accept crypto payments as a home services company

A plumbing, HVAC or electrical company is the rare business whose cash register is a van in someone else's driveway, operated by someone who is not the owner, at the moment the customer is least happy to be spending money. The emergency call-out is the highest-margin job of the year and the most disputed: a price agreed verbally at 11pm on a Sunday, re-read on Monday morning, and reversible for months. Meanwhile the parts float is financed on the company card, the membership plans that fill the shoulder season die silently on reissued cards, and the Friday run to subcontracted techs is a stack of transfers. POS with a fresh QR per job and PIN cashiers per technician, links and invoices for quoted installs, subscriptions for maintenance plans, CSV batches for the crew — non-custodial, straight to a wallet you control.

26 min read
Stablecoins

Self-custodial stablecoin wallets reached the payer — and stopped at your counter

On September 1, 2026, Ethena launched the beta of Ethena Pay — a self-custodial stablecoin wallet built exclusively on Avalanche, holding user balances in USDe, paying 5–6% on those balances, and shipping in 48 countries that pointedly exclude the US, the EU and South Korea. The customer holds their own keys. And then they spend through a Visa card at 130 million merchants, which means the business on the other side of that transaction experiences an entirely ordinary card sale: interchange, an acquirer holding the money, a settlement delay, and 120 days of chargeback exposure. Self-custody, in other words, is currently a property of one side of the transaction. This analysis takes the launch apart — the yield tiers and what funds them, the country list and why it is the tell, the fact that USDe is a synthetic delta-hedged dollar and not a T-bill-backed one — and then asks the question the press release doesn't: what would have to change for the payer's non-custodial dollars to arrive as the merchant's non-custodial dollars, with no card, no acquirer and no reversal window in between.

21 min read