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httpthirdwebpayaiultravioletadaocdpx402-list

api.duoleads.com

Validate a national identity, tax or company registration number against its country's official checksum rule. Covers 23 countries including NL BSN, ES NIF/NIE/CIF, IT codice fiscale, FR SIREN/SIRET, DE Steuer-ID, BE/PL/CZ national numbers, SE/NO/DK/FI personal numbers, BR CPF/CNPJ, AU ABN/TFN, UK NINo, IE PPS, US NPI/EIN. Structure and check digit only — no registry lookup; the number itself is never stored (logs keep only its length and character types).

Resource URL

https://api.duoleads.com/v1/id/national

Payment options

exactBase (8453)

$0.05 USDC

Max amount

Pay to
0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39
Timeout
120s

Tags

deterministicno-api-keyididentifiersvalidation

For agents

Prompt snippet for AI agents

Find and pay for this x402 resource:
URL: https://api.duoleads.com/v1/id/national
Type: http
Sources: thirdweb, payai, ultravioletadao, cdp, x402-list

Developer