{"machine":"fuel-economy","slot":"S169","title":"Fuel economy converter","how_to_call":"POST https://innernetcorp.com/machines/fuel-economy 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":{"value":8.5,"from":"l_100km","to":"mpg_us"},"input_schema":{"type":"object"},"summary":"Convert between MPG (US and imperial), L/100km and km/L - the inverse-scale conversion everyone gets wrong.","catalog":"/catalog"}