{"uid":"cap_m4X9zGI4PIIjMVgPa8wGp","slug":"via-router-find-cheapest-api-84f26bde","name":"VIA Router — Find Cheapest API","description":"VIA is a paid buyer-side router for AI agents and humans. Compare APIs, services, products and sourced research with x402 USDC payments on Base.","url":"https://via-router.floot.app/_api/find_cheapest_api?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"intent":{"type":"string","maxLength":500,"minLength":2,"description":"Plain-language request to route"},"market":{"enum":["auto","services","commerce","information","travel"],"type":"string"},"country":{"type":"string","pattern":"^[A-Z]{2}$"},"language":{"enum":["en","pt"],"type":"string"}}},"responseSchema":{"type":"json","example":{"paid":true,"intent":"Find a PDF text extractor","settlement":{"network":"eip155:8453","transaction":"0x..."},"viaTollUsd":0.001,"alternatives":[],"recommendation":{"title":"PDF Text Extractor","source":"Apify Store"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_d9CQerinOfjw8ltec-s9I","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Routes a plain-language intent to the cheapest recommended API, service, or product match, paid via x402 USDC microtransaction on Base.","exampleAgentPrompt":"Use VIA Router to find me the cheapest API for extracting text from PDFs — search in the services market, in English, for the US.","exampleUseCases":[{"title":"Cheapest SMS API for agent","prompt":"I need to send SMS messages from my agent — use VIA Router to find and recommend the cheapest API for that in the services market for the US."},{"title":"Best travel booking service lookup","prompt":"Find me the best and cheapest travel booking service or API I can use for flight searches — check the travel market in English for the US."},{"title":"Commerce product search API","prompt":"My agent needs to search for products to buy — use VIA Router to find the cheapest commerce API or service for product search, in English for Brazil (BR)."}],"resultDescription":"Returns a JSON object containing a recommended API or service (title and source), whether payment was successful, the settlement transaction hash on Base, the toll cost in USD (0.001 USDC), and any alternatives found.","failureModes":["Intent string too short or too long (must be 2–500 characters) — validation error","Invalid country code (must be ISO 3166-1 alpha-2 uppercase) — schema validation failure","No matching service found for the given intent — empty or null recommendation","Payment settlement failure on Base network — transaction not confirmed","Unsupported market enum value — request rejected","Rate limiting or service unavailability — HTTP 5xx error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover and select the cheapest available API or service for a given task at runtime, especially when cost optimization matters and the agent does not already have a hardcoded integration. Ideal for agentic workflows that need to resolve tool selection on-the-fly using natural language, and where micropayment via x402/USDC on Base is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:35:14.803Z","isFirstParty":false,"canonicalSlug":"via-router-find-cheapest-api-84f26bde"}