{"uid":"cap_4WtNsucRTXDx6JHYEAoET","slug":"autopulse-vehicle-side-by-side-comparison-6e1745bd","name":"AutoPulse Vehicle Side-by-Side Comparison","description":"Car comparison / vehicle comparison / which car should I buy. Compares 2-4 vehicles side-by-side on reliability, EPA MPG/fuel economy, and total ownership cost to settle a purchase decision. For car-buyer, car-shopping, and auto agents.","url":"https://autopulse.theaslangroupllc.com/api/auto/compare?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["vehicles"],"properties":{"lang":{"type":"string","description":"lang"},"year":{"type":"integer","description":"year"},"vehicles":{"type":"string","description":"Comma-separated vehicles (e.g. Toyota RAV4,Honda CR-V,Mazda CX-5)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"errors":{"type":"object","description":"Documented error responses, keyed by HTTP status code","additionalProperties":{"type":"object","required":["description"],"properties":{"example":{"type":"object"},"description":{"type":"string"}}}},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","errors":{"400":{"example":{"error":"vehicles parameter required"},"description":"Invalid or missing parameter(s) — required: vehicles. Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."},"402":{"description":"Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."},"500":{"example":{"error":"upstream_failed"},"description":"Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":{"p10Cents":"10.0000","medianCents":"10.0000","p90Cents":"10.0000","minCents":"10.0000","maxCents":"10.0000","p95Cents":"10.0000","sampleCount":1,"varies":false,"failureChargeRate":1},"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nKnJzXat-_qeWNScHGQrH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Compares 2–4 vehicles side-by-side on reliability, EPA MPG/fuel economy, and total ownership cost to help buyers make a purchase decision","exampleAgentPrompt":"Compare the 2023 Toyota RAV4, 2023 Honda CR-V, and 2023 Mazda CX-5 side by side — I want to see reliability ratings, EPA MPG, and total 5-year ownership cost for each so I can decide which one to buy.","exampleUseCases":null,"resultDescription":"Returns a structured side-by-side comparison of 2–4 vehicles including reliability ratings, EPA MPG and fuel economy figures, and total ownership cost estimates, enabling a data-driven car purchase decision.","failureModes":["Unrecognized make/model/year returns an error or empty result","Fewer than 2 vehicles specified causes a validation error","More than 4 vehicles specified may return an error","Rare or exotic vehicles not in dataset return partial or no data","Malformed query parameters return a 400 bad request"],"whenToPreferThis":"Use this endpoint when a user is actively deciding between 2–4 specific vehicles and needs a structured multi-dimensional comparison covering reliability, fuel economy, and total cost of ownership. Prefer this over the total-cost-of-ownership single-car endpoint when the user is comparing options, and over the reliability-only endpoint when a holistic purchasing comparison is needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T18:35:52.920Z","isFirstParty":false,"canonicalSlug":"autopulse-vehicle-side-by-side-comparison-6e1745bd"}