Zip-Codes API
Deployment
Overview
About Zip-Codes API
Production REST API for US and Canadian postal-code data. Capabilities: address validation and standardization with ZIP+4 append, radius search (centroid haversine to 500 mi, or true spatial polygon intersection to 250 mi with per-result percent-inside), point-to-point distance and bearing, multi-entity autocomplete (cities, ZIPs, counties, metros, FSAs, school districts), per-ZIP enrichments — Census ACS demographics across 14 years (542 fields), congressional, state legislative, and school district lookups.
Six endpoints accept US ZIP, ZIP+4, Canadian FSA, Canadian postal, or lat/lon coordinates. Batch processes up to 100 inputs. REST/JSON over HTTPS, API-key auth, CORS, OpenAPI 3 spec, public Postman collection.
Free tier: 2,500 requests/day, no credit card, no expiration. Paid: Developer $49/mo, Professional $149/mo, Business $499/mo. Credit packs $19–$799.
At a glance
Software information
Industries served, licensing and the support Zip-Codes API provides.
Industries
- Banking
- Commercial-real-estate
- Consumer-goods
- Facilities-services
- Import-export
- Information-services
Licensing
- Proprietary
- Monthly Payment
- Free version
Support
- Phone
- Support daysMondayTuesdayWednesdayThursdayFridaySupport time08:00 to 19:00 (EST)
Training
- Documentation
Capabilities
Zip-Codes API features
The full feature set, grouped by module.
Plans
Zip-Codes API pricing
- 60 requests per minute - 1 API key
- All single-call endpoints - no batch processing
- Radius search capped at 100 mi centroid - 50 mi spatial mode
- 100000 credits per month
- 300 requests per minute
- 5 API keys with individual IP and CORS rules
- All endpoints including batch up to 100 inputs per request
- Full radius range - 500 mi centroid - 250 mi spatial
- All enrichments - Census ACS - demographics - timezone
- Self-service plan changes. No sales call
- 350000 credits per month
- 300 requests per minute
- 10 API keys with individual IP and CORS rules
- All endpoints including batch up to 100 inputs per request
- Full radius range - 500 mi centroid - 250 mi spatial
- All enrichments - Census ACS - demographics - timezone
- Self-service plan changes. No sales call
- 1500000 credits per month
- 600 requests per minute
- 25 API keys with individual IP and CORS rules
- All endpoints including batch up to 100 inputs per request
- Full radius range - 500 mi centroid - 250 mi spatial
- All enrichments - Census ACS - demographics - timezone
- Self-service plan changes. No sales call
Media
Screenshots & video
