{"uid":"cap_d1QrMIcRlxD_y2m8pJwIO","slug":"the-stall-unit-converter-66f52b11","name":"The Stall Unit Converter","description":"Converts between 100+ units across 12 categories: length, weight, temperature, volume, speed, area, energy, pressure, data, time, angle, frequency. Handles mixed-case inputs (km, KM, Km all work). Returns the converted value plus all common units in the same category. Zero external calls — pure math.","url":"https://the-stall.intuitek.ai/cap/unit-converter","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"to":"c","from":"f","value":72}}},"response":{"to":"c","from":"f","value":"72","result":22.222222,"category":"temperature","generated_at":"2026-06-12T05:12:56.802Z"}},"exampleRequest":{"to":"c","from":"f","value":72},"tags":["x402"],"displayCostAmount":"0.034","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.034/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.034","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.034","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4aFe42VA4qg8i6wJHnYbV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.034","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts a numeric value from one unit of measurement to another (or returns all units in the same category if no target unit is specified)","exampleAgentPrompt":"Convert 72 degrees Fahrenheit to Celsius for me — I need the exact converted value.","exampleUseCases":null,"resultDescription":"Returns the numeric result of converting the given value from the source unit (e.g. 'f', 'kg', 'mi', 'kwh', 'mph', 'gb', 'psi') to the target unit, or if no target unit is provided, returns conversions to all units in the same measurement category.","failureModes":["Missing required 'value' or 'from' query parameters — returns 400 Bad Request","Unrecognized or misspelled unit abbreviation — returns error or empty result","Payment not provided or insufficient USDC on Base mainnet — returns 402 Payment Required","Invalid numeric value (non-numeric string) — returns 400 or validation error"],"whenToPreferThis":"Use this endpoint when an AI agent needs to perform on-demand, pay-per-call unit conversions across a wide range of measurement categories (mass, distance, temperature, energy, speed, digital storage, pressure, etc.) without requiring an API key or account. Ideal for agents that need occasional or low-volume conversions billed in micro-USDC via x402 on Base mainnet.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:42:45.188Z","isFirstParty":false}