{"uid":"cap_VaUBxbuDZsXW-2VkgPxJn","slug":"building-permit-records-api-chicago-nyc-seattle-sf-34a51cf7","name":"Building Permit Records API (Chicago, NYC, Seattle, SF)","description":"Building permit records. Construction and building permits across Chicago, NYC, Seattle, and San Francisco — type, status, address, cost, and issue date.","url":"https://api.kadec0.xyz/v1/permits","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":["city"],"properties":{"city":{"enum":["chicago","nyc","seattle","sf"],"type":"string"},"address":{"type":"string","description":"full-text match on address"},"maxItems":{"type":"string","default":"25"},"date_range":{"type":"string","description":"YYYY-MM-DD,YYYY-MM-DD (from,to)"},"permit_type":{"type":"string","description":"full-text match on permit type/description"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_L4i_Av7Fmn-B1REaG3Gei","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves building and construction permit records—including type, status, address, cost, and issue date—across Chicago, NYC, Seattle, and San Francisco.","exampleAgentPrompt":"Can you pull building permit records in Chicago for the address 123 N Michigan Ave — show me any permits from the last year, up to 25 results?","exampleUseCases":null,"resultDescription":"A list of building/construction permit records for the queried city, filtered by address, permit type, and/or date range, with fields including permit type, status, address, cost, and issue date.","failureModes":["Missing required 'city' parameter returns a validation error","City value outside the supported enum (chicago, nyc, seattle, sf) returns an error","Invalid date_range format (not YYYY-MM-DD,YYYY-MM-DD) causes a parsing error","No matching permits found returns an empty result set","Payment failure (x402) blocks the request if USDC balance is insufficient"],"whenToPreferThis":"Use this endpoint when you need structured building permit records for Chicago, NYC, Seattle, or San Francisco—particularly for real estate research, construction activity monitoring, or property due diligence. It supports filtering by address, permit type, and date range, making it ideal for targeted lookups rather than bulk municipal data ingestion.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:48:36.656Z","isFirstParty":false}