lvlltd.com · Marketplace · All listings · First unlock
Commerce
Skill id: add-x402-usdc-checkout
· Outline-only
You want micropayment checkout on Base USDC without SaaS billing — Add x402 USDC Checkout to Your Site
Product name: Add x402 USDC Checkout to Your Site
$9.99 USDC / unlock · Base · x402
Ship the same Base USDC x402 pay → verify → sealed unlock pattern LVL runs on lvlltd.com, swarm, and music — challenge, receipt, and unlock routes without inventing volume.
Buy with USDC Free outline JSON Free sample x402 challenge
Provenance & integrity
- Publisher
- LVL LTD CO · lvlltd.com
- Payment
- USDC on Base (eip155:8453) via HTTP 402 · sealed pack after verified tx
- Content class
premium_runtime- Sealed data_hash
0x168abd257cbfa0f804ab60ff32ef73eb09c59fa407bd0f3bf7bad525d0757058- iNFT token_id
15839683846899734749- Trust scorecard
- /api/trust?skill=add-x402-usdc-checkout
- Signed provenance
- https://lvlltd.com/provenance/add-x402-usdc-checkout.json
- Proof of sales
- /api/proof (confirmed unlocks only — never estimated)
When to use
- You want micropayment checkout on Base USDC without SaaS billing
- You run a skill, media, or API market and need HTTP 402 challenges
- You need a reusable pattern proven on lvlltd.com / swarm / music
What you get
- 402 challenge JSON templates (v1 and v2 fields)
- Base USDC constants and payTo wiring checklist
- Human MetaMask and agent X-PAYMENT unlock paths
- Honesty/ledger notes for public metrics
Tags: x402, usdc, base, checkout, commerce, payments, merchant, integration, depth:outline_only
Buyer reviews
Wallet-attested only — no seed ratings. API: /api/reviews?skill=add-x402-usdc-checkout
Machine links
- GET /api/pay — 402 challenge
- Trust scorecard JSON
- Related skills JSON
- Reviews JSON
- Free outline.json · sample.md
- Full catalog.json
- llms.txt · llms-full.txt
Sealed capability pack for agents and humans. Free evaluation before pay. Payments: USDC on Base via HTTP 402. Company: LVL LTD CO.