ship·ment track·ing API
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Usage notes. One problem at a time.

Short guides to tracking USPS, UPS, FedEx and DHL packages from code. Every request works against the live API with your own key and numbers. Example responses are labeled.

batchn. Track 35 USPS packages in one request A USPS request carries up to 35 tracking numbers and still counts as one lookup. This note covers the request, the order of the results, partial failures and lists longer than 35. USPS
1 note so far.RSS
In preparation4 notes
  • formatGuess the carrier from a tracking numberAll four
  • statusWhat USPS tracking statuses mean in codeUSPS
  • reuseWhy a new tracking number can show an old packageUSPS
  • codeUPS tracking status codes, and which ones mean deliveredUPS
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