{"machine":"midpoint","slot":"S81","title":"Geographic midpoint","how_to_call":"POST https://innernetcorp.com/machines/midpoint 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":{"lat1":31.5204,"lon1":74.3587,"lat2":24.8607,"lon2":67.0011},"input_schema":{"type":"object"},"summary":"The geographic midpoint between two lat/lon coordinates along the great circle.","catalog":"/catalog"}