{"uid":"cap_fV737lVW7iIDmQSoeRzNz","slug":"cook-county-property-records-by-pin-c85252f7","name":"Cook County Property Records by PIN","description":"Cook County (Illinois) assessor parcel records by 14-digit PIN from the Cook County Open Data portal: yearly assessment class, township, neighborhood code, property address and ZIP. Owner names are not returned. Yearly rows, newest first.","url":"https://api.jobsproperty-api.workers.dev/api/realestate/cook-county-property-records?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"],"type":"string"},"queryParams":{"type":"object","required":["pin"],"properties":{"pin":{"type":"string","description":"14-digit Cook County PIN, digits only (dashes allowed)"},"limit":{"type":"string","description":"How many years, 1 to 20 (default 5)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"pin":"15261120200000","count":3,"source":"https://datacatalog.cookcountyil.gov/resource/tx2p-k2g9.json","records":[{"zip":"60546","city":"NORTH RIVERSIDE","year":2023,"township":"Riverside","assessmentClass":"203","propertyAddress":"2336 S 4TH AVE","neighborhoodCode":"34010"},{"zip":"60546","city":"NORTH RIVERSIDE","year":2022,"township":"Riverside","assessmentClass":"203","propertyAddress":"2336 S 4TH AVE","neighborhoodCode":"34010"}],"checkedAt":"2026-10-23T09:36:59.045Z"}},"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_qzaaq8I8B16JjJijYp0DQ","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 yearly Cook County (Illinois) assessor parcel records — assessment class, township, neighborhood code, property address, and ZIP — for a 14-digit PIN, sourced from Cook County Open Data.","exampleAgentPrompt":"Can you pull up the Cook County assessor records for PIN 15261120200000 and show me the last 3 years of assessment data, including the address, township, and assessment class?","exampleUseCases":[{"title":"Verify property details before purchase","prompt":"I'm looking at a property in North Riverside, Illinois and the seller gave me PIN 14-digit number 15261120200000 — can you pull the Cook County assessor records so I can confirm the address, assessment class, and township for the last 5 years?"},{"title":"Enrich real estate portfolio with assessment data","prompt":"I have a list of Cook County PINs for properties I own — can you look up PIN 12345678901234 and get me the assessment class, neighborhood code, and property address for the past 5 years?"},{"title":"Audit neighborhood assessment classifications","prompt":"I'm researching assessment patterns in Riverside township — can you fetch the Cook County parcel records for PIN 15261120200000 and tell me if the assessment class has changed over the last 10 years?"}],"resultDescription":"A JSON object containing the 14-digit PIN, the number of records found, a source URL pointing to the Cook County data catalog, and an array of yearly records (newest first) each with ZIP, city, year, township, assessment class, property address, and neighborhood code, plus a checkedAt timestamp.","failureModes":["Invalid or malformed PIN (non-14-digit) returns an error or empty result","PIN not found in Cook County Open Data returns zero records","limit parameter out of range (outside 1–20) may cause validation error","Cook County Open Data portal downtime causes upstream fetch failure","Rate limiting or payment failure returns HTTP 402"],"whenToPreferThis":"Use this endpoint when you need official Cook County assessor parcel data (assessment class, township, neighborhood, address, ZIP) for a specific Illinois property identified by its 14-digit PIN. Prefer this over general property search APIs when you already have the PIN and need structured yearly assessment history directly from the Cook County Open Data portal. Not suitable for owner name lookups or properties outside Cook County, Illinois.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T00:34:28.696Z","isFirstParty":false,"canonicalSlug":"cook-county-property-records-by-pin-c85252f7"}