Jobs · head-to-head
Adzuna vs USAJOBS
Adzuna
Adzuna's job-search API exposes its aggregated listings, salary histograms, and regional/company vacancy trends across dozens of countries. Access requires a free app_id/app_key pair from its developer portal, with results returned as JSON, JSONP, or XML.
USAJOBS
USAJOBS is the official job board for the U.S. federal government, and its Search API returns current vacancy announcements plus dozens of reference code lists (agencies, pay plans, hiring paths). Every request needs a free registered email/API-key pair sent as custom headers, confirmed live by a genuine 401 challenge that also carried a wildcard CORS header.
| Adzuna | USAJOBS | |
|---|---|---|
| Authentication | API Key | API Key |
| Pricing | free | free |
| Formats | JSON, XML | JSON |
| CORS | no | yes |
| HTTPS | Yes | Yes |
USAJOBS supports CORS, while Adzuna doesn't — pick USAJOBS for direct browser calls.