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Lumière Paycheck

Check an x402 endpoint before your AI agent pays it

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Lumière PayCheck checks an x402 endpoint before your AI agent pays it. It grades every endpoint in the x402 Bazaar from monitoring every 30 minutes and real paid tests, then answers allow or deny before each payment, with the reasons: a wrong price, a changed payout wallet, a failing endpoint. Free checks with no account, an MCP server for Claude and Cursor, and an npm package. Teams get scoped agent keys, spend limits, signed receipts and an audit trail. Payments on Base and Solana.

PH · launched Nov 2, 2026 · 1 upvote (top 65%) · 0 views

Niche: ai agent security and monitoring tools · 297 launches, 14 in the last 7 days ▼ -44% · Explore this niche →

Category and tags

  • Fintech
  • Compliance & governance
  • Developer
  • AI-native
  • Commercial product
  • Fintech
  • Developer Tools
  • Artificial Intelligence
  • GitHub

Visit website ↗ Source listing ↗

Could you build this?

Yes The core is a monitoring service that polls public x402 endpoints, runs paid test calls, stores scores, and serves an allow/deny check API. That is standard backend work plus a dashboard, with the protocol details learnable from public docs.

Competitors

Other products that read as similar to this one : 141 launches clear the similarity bar, closest 8 shown.

Attention rank: #63 of 142 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 258 days after the earliest competitor.

  • Factline · ph · 2026-10-20 · 1 upvotes · similarity 0.54
  • x402 List · ph · 2026-10-12 · 1 upvotes · similarity 0.52
  • HIVE402 · ph · 2026-11-11 · 2 upvotes · similarity 0.46
  • SpendVeto · ph · 2026-09-16 · 2 upvotes · similarity 0.46
  • x402 Toolbox · ph · 2026-10-07 · 2 upvotes · similarity 0.45
  • x402Shield · ph · 2026-09-22 · 2 upvotes · similarity 0.45
  • spendctl · ph · 2026-10-26 · 3 upvotes · similarity 0.44
  • Lumière Agents · ph · 2026-10-19 · 1 upvotes · similarity 0.43

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