Square API
POST /mobile/authorization-code endpoint removal
Stopped workingSubscribe to Square APIShare
Calls to POST /mobile/authorization-code on Square API stopped working on December 31, 2025.
Calls it hits
POST /mobile/authorization-code
What to use instead of these calls
Move the app from the Reader SDK to the Mobile Payments SDK, which authorizes with an OAuth access token and a location ID instead of a mobile authorization code. This transition requires more than updating an identifier, as replacing the Reader SDK with the Mobile Payments SDK is a rewrite of the app's payment flow.
Replacing the Reader SDK with the Mobile Payments SDK is a rewrite of the app's payment flow.
In Square API's words
The Mobile Authorization API is used by the Reader SDK, which is now deprecated. This API will be retired along with the Reader SDK on December 31, 2025.
Facts
- API
- Square API
connect.squareup.com - Kind
- Endpoint removal
- Announced
- February 20, 2025
- Takes effect
- December 31, 2025
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against Square API's own pages
Questions
When does this change take effect?
Calls to POST /mobile/authorization-code on Square API stopped working on December 31, 2025.
What happens to calls after December 31, 2025?
They have failed since December 31, 2025.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.