Driftwatch

Clerk / Clerk Backend API (2026-05-12) /

Behavioral

429 is now documented on /phone_numbers/{phone_number_id}/attempt_verification

What changed

An unhandled branch in your error handling.

Affects POST /phone_numbers/{phone_number_id}/attempt_verification.

429 is now documented

Who is affected

Code that reads POST /phone_numbers/{phone_number_id}/attempt_verification.

Before and after

WhereBeforeAfter
POST /phone_numbers/{phone_number_id}/attempt_verificationabsent429

Based on Clerk’s published API specification. How severity is decided.