{"machine":"vat-calc","slot":"S55","title":"VAT / sales tax calculator","how_to_call":"POST https://innernetcorp.com/machines/vat-calc with Content-Type: application/json","price_usd":"$0.003","currencies":["USDC","EURC"],"payment":"x402: send the POST without payment to receive a 402 with signed requirements; pay any option and retry.","input_example":{"amount":118,"rate":18,"mode":"extract"},"input_schema":{"type":"object"},"summary":"Add tax to a net amount or extract tax from a gross amount, at any VAT or sales-tax rate.","catalog":"/catalog"}