Why
Gasless UX is table stakes for consumer on-chain apps, and it has a precise accounting meaning: gas moved from the user's cost line to yours. Cloud spend taught this lesson already — an unmetered resource that users can trigger is a bill someone else writes. The difference on-chain is that the trigger is permissionless: anyone can generate wallets and click.
So the sponsor needs what every payments company runs internally: attribution (which user, which action, how much), budgets (per-user daily caps, a global kill line), and pricing awareness (an action costing 40 cents of gas to earn 2 cents of revenue is a business decision someone should see). None of this exists at the protocol layer — ERC-4337 defines how a paymaster pays, not when it should refuse. The refusal policy is the product.
How it works
Attribution on every UserOp, a budget with a kill line, and a bot that proves why.
PoC
On a 4337 stack (thirdweb or self-relay on anvil): wrap sponsorship so every sponsored UserOp records { user, action, gasUsed, costWei, timestamp }. Dashboard: cost per user, per action, cumulative against a daily budget; a global pause when the budget line is crossed and a per-user cap (say 20 sponsored ops/day) that degrades that user to pay-your-own-gas instead of blocking them. Then the red team: a script generating 200 fresh wallets hammering the cheapest sponsored action against the unmetered build — chart minutes-to-budget-death — and again against the metered build, where the caps hold and the burn flatlines.
What it proves
Sponsorship policy is spend control over a permissionless trigger, and the three pieces — attribution, budget, degrade-not-block — are the whole mechanism. It also surfaces the honest unit economics per action, which is the number that decides whether gasless is a growth cost or a slow leak. Extends bundler-paymaster-dependencies from whom you depend on to what it costs you.
Where it lands in Jayverse
- Rabbit: attribute every sponsored UserOp before shipping gasless UX. Record
{user, action, gasUsed, costWei, timestamp}on each sponsored operation from day one, not as a retrofit once the paymaster is already live. - gitboard: add sponsored gas as a live COGS tile against a daily budget. The service dashboard should show cumulative sponsorship spend per service with a kill line, since an unmetered paymaster is a bill someone else writes.
- Wallet: cap and degrade instead of block, then red-team it. Ship a per-user daily sponsored-op cap that drops the user to pay-your-own-gas, and test it with a bot spinning up fresh wallets to chart minutes-to-budget-death before launch.
Key expressions
| Expression | 뜻 · 쓰이는 자리 |
|---|---|
| COGS | 매출원가 · 상품이나 서비스 제공에 직접 드는 비용을 회계에서 부르는 말. "Sponsored gas is a COGS line" |
| bleed | 돈이 새다, 출혈이 계속되다 · 계량 없이 비용이 계속 빠져나갈 때. "meter it or bleed" |
| a faucet with your logo on it | 당신 로고가 붙은 수도꼭지, 공짜로 계속 흘러나가는 것 · 무제한으로 낭비되는 자원을 비유. "a faucet with your logo on it" |
| table stakes | 경쟁에 참여하기 위한 기본 조건 · 안 하면 명함도 못 내미는 필수 요소. "Gasless UX is table stakes for consumer on-chain apps" |
| kill line | 지출을 강제로 끊는 차단선 · 예산 초과 시 전체를 정지시키는 기준선. "a global pause when the budget line is crossed" |
| degrade, not block | 차단이 아니라 성능을 낮추는 방식으로 · 사용자를 막지 않고 조건만 낮출 때. "degrades that user to pay-your-own-gas instead of blocking" |
| red team | 공격자 관점에서 시험하는 레드팀 · 시스템을 실제 공격처럼 테스트하는 팀이나 절차. "Then the red team: a script generating 200 fresh wallets" |
| hammer (an action) | ~을 무차별적으로 연타하다 · 같은 요청을 계속 반복해서 공격할 때. "hammering the cheapest sponsored action against the unmetered build" |
| flatline | 그래프가 평평해지다, 멈추다 · 지출이나 활동이 완전히 멎을 때. "the caps hold and the burn flatlines" |
| a slow leak | 서서히 새는 손실 · 눈에 띄지 않게 계속 손해가 누적될 때. "a growth cost or a slow leak" |
| UserOp | 사용자 오퍼레이션(ERC-4337의 User Operation, 계정 추상화 트랜잭션 단위) · 페이마스터가 대신 가스비를 내는 단위 요청. "Attribution on every UserOp, a budget with a kill line" |