{"uid":"cap_cQaOr2xJBYJ0jKsDK9E-K","slug":"apexapi-speed-converter-92930b75","name":"ApexAPI Speed Converter","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://apex-api-gamma.vercel.app/api/tools/convert/speed","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.125741","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.125741/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.125741","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.125741","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hXzLNOpCeuLQEaXn_RNCp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.125741","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts speed values between different units (e.g. mph, km/h, m/s, knots)","exampleAgentPrompt":"Convert 75 mph to kilometers per hour for me.","exampleUseCases":null,"resultDescription":"Returns the converted speed value in the requested target unit, along with the original value and units for reference.","failureModes":["Invalid or unrecognized speed unit returns an error or null result","Missing query parameter causes a 400 bad request","Unsupported unit combination returns no conversion","Payment failure (402) if USDC not provided or insufficient","Non-numeric speed value in query causes parsing error"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call speed unit conversion without managing API keys; ideal for agents needing one-off conversions between common speed units like mph, km/h, m/s, knots, or ft/s within automated workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:43:33.327Z","isFirstParty":false}