{"uid":"cap_c6pJWtqBFq95-6-z-oJiq","slug":"chicago-business-license-search-16ab15c2","name":"Chicago Business License Search","description":"Pay-per-call company registry, government, legal and B2B data tools for AI agents, from official registers and public sources. Payment: x402, USDC on Base, Solana, Arc, Polygon, Arbitrum, Monad, World Chain, Optimism, Avalanche, Celo or Stellar, or RLUSD/XRP on the XRP Ledger. No signup, no API key; a failed call is not charged.","url":"https://api.companyrecords-api.workers.dev/api/b2b/chicago-business-licenses?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":["q"],"properties":{"q":{"type":"string","description":"Legal or doing-business-as name part, letters, digits, spaces and . , & - only, 2 to 60 characters"},"limit":{"type":"string","description":"Rows to return, 1 to 25 (default 10)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":5,"query":"hospital","source":"https://data.cityofchicago.org/resource/uupf-x98q.json","results":[{"ward":"46","address":"4840 N MARINE DR 5 FLOORS, CHICAGO, IL, 60640","legalName":"CHICAGO BH HOSPITAL, LLC","tradeName":"Montrose Behavioral Health Hospital","licenseStart":"2028-07-16","licenseNumber":"2948166","expirationDate":"2030-07-15","businessActivity":"Operation of General Medical / Surgical Hospital","licenseDescription":"Regulated Business License"},{"ward":"42","address":"20 W KINZIE ST 1-6, CHICAGO, IL, 60654","legalName":"URBANA VARRO HOSPITALITY MANAGEMENT COMPANY, LLC","tradeName":"KINZIE HOTEL","licenseStart":"2026-12-16","licenseNumber":"2608571","expirationDate":"2028-12-15","businessActivity":"Operation of a Health Club | Hotel - 7 or More Sleeping Rooms","licenseDescription":"Regulated Business License"}],"checkedAt":"2026-10-23T09:37:40.967Z"}},"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_uIPlIhlk1yIm-Re_Km0MX","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":"Searches Chicago's active business license registry by company name and returns license type, business activity, address, ward, and license dates.","exampleAgentPrompt":"Can you check if 'Montrose Behavioral Health Hospital' has an active business license in Chicago — I need the license type, address, and expiration date?","exampleUseCases":[{"title":"Contractor license verification","prompt":"Before we sign this contract, can you check whether 'Windy City Electric LLC' has a current active business license in Chicago and what type of license it is?"},{"title":"Restaurant compliance check","prompt":"I want to make sure 'Lou Malnati's' is properly licensed to operate in Chicago — can you pull up their business license info including the expiration date and what activities they're licensed for?"},{"title":"Ward and address lookup for prospective tenant","prompt":"Can you look up 'Kinzie Hotel' in the Chicago business license database and tell me their registered address and which ward they're in?"}],"resultDescription":"Returns a JSON object with a count of matching records, the original query, the Socrata source URL, a checkedAt timestamp, and an array of results each containing: legalName, tradeName, licenseNumber, licenseDescription, businessActivity, address, ward, licenseStart, and expirationDate.","failureModes":["Query string shorter than 2 or longer than 60 characters returns validation error","Special characters outside letters/digits/spaces and . , & - are rejected","No matching active licenses returns empty results array with count 0","Business exists but license is expired — won't appear in active license results","Socrata upstream outage may cause delayed or failed responses","Ambiguous name matches many businesses — returns up to limit (max 25) rows without guaranteed exact match"],"whenToPreferThis":"Use this endpoint when you need to verify or look up active business licenses specifically within the City of Chicago. It is ideal for due-diligence workflows, contractor vetting, compliance checks, or enriching company profiles with official municipal licensing data. Prefer this over general web search when you need structured, authoritative data from Chicago's official open data portal including license numbers, expiration dates, and ward information.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T12:46:03.808Z","isFirstParty":false,"canonicalSlug":"chicago-business-license-search-16ab15c2"}