Tracking · head-to-head
UPS vs WeCanTrack
UPS's REST APIs cover package tracking, rating, address validation, and label creation, authenticated via OAuth 2.0 client-credentials bearer tokens issued by the developer portal — the legacy Access Key scheme was retired for all UPS REST APIs in 2024. Calls carry no separate API fee: access is free for UPS account holders, who instead pay UPS directly for the shipments and services the calls represent.
WeCanTrack is an affiliate-marketing attribution service whose Public Clickout API rewrites an outbound affiliate link with a tracking sub-ID before redirecting the shopper, letting merchants tie clicks back to conversions across 450+ affiliate networks. Every call carries a per-account API key (via header or query string), and the public clickout endpoint is IP-throttled to 30 requests/minute to keep redirect latency low. There's no ongoing free tier — plans start at $69/month after a 15-day trial.
| UPS | WeCanTrack | |
|---|---|---|
| Authentication | OAuth | API Key |
| Pricing | free | paid |
| Formats | JSON | JSON |
| CORS | no | yes |
| HTTPS | Yes | Yes |
UPS is free, while WeCanTrack is paid — UPS is the cheaper way in.