{"uid":"cap_AeO7pehqiHB-v8ddwXoiu","slug":"us-zip-code-lookup-a3dd5cc2","name":"US ZIP Code Lookup","description":"Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.","url":"https://anibalb.duckdns.org/x402/us-zipcode?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","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"places":[{"state":"New York","latitude":"40.7484","longitude":"-73.9967","place name":"New York City","state abbreviation":"NY"}],"country":"United States","post code":"10001"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DVbFMx6ft3DZCoJz0ZcAY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns city, state, and geographic coordinates for a given US ZIP code","exampleAgentPrompt":"What city and state does ZIP code 10001 belong to, and what are its coordinates?","exampleUseCases":[{"title":"Address validation for e-commerce checkout","prompt":"A customer just entered ZIP code 94103 — can you look up what city and state that is so I can auto-fill the address form?"},{"title":"Delivery zone mapping by ZIP","prompt":"I need to know whether ZIP code 30301 is in Georgia so I can confirm it falls within our Southeast delivery region."},{"title":"Enriching user signup data with location","prompt":"A new user signed up with ZIP code 60614 — what city and state should I tag their profile with, and what are the coordinates?"}],"resultDescription":"Returns a JSON object with the post code, country name, and a list of matching places each containing city/place name, state name, state abbreviation, latitude, and longitude.","failureModes":["Invalid or non-existent ZIP code returns empty places array or error","Non-US postal codes may not be supported by this endpoint","Missing or malformed query parameter returns 400 error","Payment failure or insufficient USDC balance returns 402 error"],"whenToPreferThis":"Use this endpoint when you need a fast, no-account-required ZIP code to city/state/coordinates lookup paid per call in USDC on Base — ideal for AI agents that need location enrichment without managing API keys or subscriptions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:41:54.793Z","isFirstParty":false,"canonicalSlug":"us-zip-code-lookup-a3dd5cc2"}