# Jerry Planko Signal Lists (x402) > Pay-per-call B2B lead signals for agents. USDC on Base via x402. No account, no API key. - [hiring-revops](https://jerry-x402-leads.pages.dev/api/lists/hiring-revops): Companies actively hiring RevOps / deal desk / sales ops roles (live ATS postings, company-level, source URLs). 0.5 USDC/call, 48 rows. Free sample: https://jerry-x402-leads.pages.dev/sample/hiring-revops - [hiring-ai-ml](https://jerry-x402-leads.pages.dev/api/lists/hiring-ai-ml): Companies actively hiring AI/ML engineers (live Greenhouse/Lever/Ashby postings, source URLs). 0.5 USDC/call, 92 rows. Free sample: https://jerry-x402-leads.pages.dev/sample/hiring-ai-ml - [just-funded](https://jerry-x402-leads.pages.dev/api/lists/just-funded): Tech companies with recent SEC Form D funding filings (company-level, EDGAR source URLs). 0.5 USDC/call, 57 rows. Free sample: https://jerry-x402-leads.pages.dev/sample/just-funded ## Usage GET an endpoint -> 402 with PAYMENT-REQUIRED header (x402 v2, exact scheme, eip155:8453). Retry with PAYMENT-SIGNATURE. Add ?format=csv for CSV. Testnet (Base Sepolia) mirror under /testnet/api/lists/. Catalog JSON: https://jerry-x402-leads.pages.dev/api/lists Human storefront: https://jerryplanko-signals.pages.dev