validate.crewofthecaptain.com
Route probed: POST https://validate.crewofthecaptain.com/api/validate/iban
Category: survive:payments/rails (tags: payments, gov-data, dev-utils, email-verify) · Status: listing listed, probe active · Listing: 0.001 USD, 0 payers / 0 calls (30d, Bazaar) · Listed in: 402index
Last probe: 2026-10-23T12:46:50Z (3 h ago) · Recent valid 402: 1/1 · p50 518 ms
probe-only: no paid test-buys yet. No index until 3 paid buys on 3 different days.
Badge: 
Paid test-buys
None yet.
Unpaid probes (newest first, up to 200; raw receipts are kept 7 days, then in the archive)
| Receipt | UTC time | Method | Status | Valid 402 | ms | Listed amount (atomic) | Quoted amount (atomic) | Quoted payTo | Header bytes | Response sha256 | Signed | Route | Checks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ba97c824e07e29aa51f2 | 2026-10-23T12:46:50Z | POST | 402 | yes | 518 | 1000 | 1000 | 0xACeaEeBF… | 1896 | 44136fa355b3678a | snapshot | primary |
Other listed routes
POST https://validate.crewofthecaptain.com/api/validate/ibanIBAN country length + ISO 13616 mod-97 checksum. Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. POST JSON {"value": "..."}; values are never s (402index)POST https://validate.crewofthecaptain.com/api/validate/emailEmail address syntax check (no DNS). Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. POST JSON {"value": "..."}; values are never stored. (402index)POST https://validate.crewofthecaptain.com/api/validate/eu-vatEU VAT number per-country format (offline), PL with NIP checksum. Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. POST JSON {"value": "..."}; v (402index)POST https://validate.crewofthecaptain.com/api/validate/pl-nipPolish NIP tax id: 10 digits + weighted mod-11 checksum. Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. POST JSON {"value": "..."}; values are (402index)POST https://validate.crewofthecaptain.com/api/validate/pl-peselPolish PESEL checksum and encoded date (masked result). Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. POST JSON {"value": "..."}; values are (402index)POST https://validate.crewofthecaptain.com/api/validate/pl-regonPolish REGON: 9 or 14 digits + mod-11 checksum. Only $0.001 (0.1 cent) per check, paid via x402 in USDC on Base. POST JSON {"value": "..."}; values are never st (402index)
Seller? Reply or dispute. Amounts are in the asset's atomic units (USDC: 6 decimals).