{"service":"Base Token Check","endpoint":"POST /check","body":{"token":"0x..."},"price":"$0.01 USDC per request (x402 v2, scheme exact)","payment_network":"eip155:8453","data_source":"Base mainnet public RPC","disclaimer":"Raw on-chain facts read from Base mainnet at the given block. Not an opinion, rating, audit or investment advice. Selector matches only show that a 4-byte function selector appears as a PUSH4 constant in the scanned bytecode (proxy and, if found, its implementation); they do not prove who can call the function or that it works, and selectors with a leading zero byte or unusual proxy patterns may be missed.","other_services":{"Business Days & Holidays":{"endpoint":"POST /business-days","body":{"country":"DE","start":"2026-12-21","end":"2027-01-08"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"IBAN & BIC Check":{"endpoint":"POST /iban","body":{"iban":"DE89 3704 0044 0532 0130 00"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"Phone Number Check":{"endpoint":"POST /phone","body":{"number":"+44 20 7946 0018"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"Email Address Check":{"endpoint":"POST /email","body":{"email":"support@github.com"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"ECB FX Rates":{"endpoint":"POST /fx","body":{"amount":100.0,"from":"USD","to":"JPY"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"EU VAT Number Check":{"endpoint":"POST /vat","body":{"vat_number":"IE6388047V"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"Weather Forecast":{"endpoint":"POST /weather","body":{"lat":42.6977,"lon":23.3219,"days":2},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"Sunrise & Sunset Times":{"endpoint":"POST /sun","body":{"lat":41.9029,"lon":12.4534,"date":"2026-12-21"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"Domain Age & RDAP Check":{"endpoint":"POST /domain","body":{"domain":"www.github.com"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"LEI Company Lookup":{"endpoint":"POST /lei","body":{"lei":"7LTWFZYICNSX8D621K86"},"price":"$0.01 USDC per request (x402 v2, scheme exact)"},"OFAC Sanctions Screening":{"endpoint":"POST /sanctions","body":{"name":"Banco Nacional de Cuba","min_score":88},"price":"$0.01 USDC per request (x402 v2, scheme exact)"}}}