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Building Permits Multi-City Open Data Lookup
x402
Building Permits Multi-City Open Data Lookup is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).
Looks up and filters building permits across NYC, SF, Chicago, LA, Seattle, and Austin, normalizing each city's data to a common schema.
Price / call$0.03
Success—
StatusUnknown
How this service works
Building permits multi-city open-data lookup. NYC, SF, Chicago, LA, Seattle, Austin. Filter by address substring, status, type, recency. Each city normalized to a common shape. Real-estate / construction primitive.
Output
A list of normalized building permit records matching the query, each containing permit number, address, status, type, issue date, expiration date, contractor info, and description — consistently structured across all supported cities.
Example use cases
Example prompt
“Can you look up any active or recent building permits filed for 123 Main Street in San Francisco? I want to know the permit type, status, and issue date.”
Technical details
Endpoint
POSThttps://x402-deployer.x402-deployer.workers.dev/building-permitsWhen to prefer
Use this endpoint when you need to check building permit activity for a specific address or area across any of the six major supported US cities, especially for real estate due diligence, construction research, or property investigation. Prefer this over general web search when you need structured, normalized permit data that can be programmatically compared or filtered.
Side effects
- City not in supported set (NYC, SF, Chicago, LA, Seattle, Austin) returns an error or empty result
- Address substring too vague returns too many or too few results
- No permits found for the address returns empty array
- Invalid status or type filter returns validation error
- Service unavailable or rate-limited returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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