# [Behavioral] Cloudflare: 503 is now documented on /accounts/{account_id}/ai-gateway/billing/topup

> Source: <https://driftwatch.et/changes/cloudflare-2026-11-05-dc7819a4>
> Published: 2026-11-05 23:55:32+00:00

## What changed

An unhandled branch in your error handling.

Affects `POST /accounts/{account_id}/ai-gateway/billing/topup`.

503 is now documented

## Who is affected

Code that reads POST /accounts/{account_id}/ai-gateway/billing/topup.

## Before and after

| Where | Before | After | 
|---|---|---|
| POST /accounts/{account_id}/ai-gateway/billing/topup | absent | 503 | 
| POST /accounts/{account_id}/ai-gateway/billing/topup/config | absent | 503 | 

Based on Cloudflare’s published API specification. [How severity is decided](https://driftwatch.et/method).