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Source-linked reports: Amounts and outcomes come from the original reports and linked replies.

Containersbu7emba-sandbox-agent-loop-1000

burak emre: an agent loop on sandboxes, a $1,000 bill, and support said to pay.

burak emre (@bu7emba) says his agent got into an infinite loop using the AI binding with sandboxes, and within an hour the bill reached about a thousand dollars because new sandboxes spin up fast with no way to rate limit. He says support called it his fault, and later that they had to pay the bill.

What happened

Reported cause
Unbounded loop
Incident date
Date not recorded
First reported
2026-01-29 18:26 UTC
Billing outcome
Request declinedAuthor-reported
Case progress
ResolvedAuthor-reported
Public Cloudflare reply
Not linked

Latest reported outcome

The author says support said it was his fault for using an agent, and in August that Cloudflare made them pay the bill while telling them spending limits were coming.

View this update in the timeline

Original sources

Each entry links to the report or reply it describes.

Case timeline

  1. Author warns about agent bills

    Read on 𝕏

    Replying to Cloudflare, the author writes: “Wait until you have thousand dollar bill because you can’t rate limit your agent with Cloudflare.”

    burak emre

    @bu7emba · Original 𝕏 post

    @Cloudflare Wait until you have thousand dollar bill because you can’t rate limit your agent with Cloudflare
  2. Author describes the loop

    Read on 𝕏

    The author says his agent got into an infinite loop using the AI binding with sandboxes; he stopped after an hour with about a thousand dollars billed, and support said it was his fault to use an agent.

    burak emre

    @bu7emba · Original 𝕏 post

    I had this first hand experience. My agent got in an infinite loop to use AI binding with sandbox. I stopped after an hour and got a thousand dollar bill already because Cloudflare is very scalable an fast to spin up new sandboxes but have no way to apply rate limiting. Support said it was my fault to use agent, hope that doesn’t happen to you!
  3. Author says they had to pay

    Read on 𝕏

    Replying to Justin Schroeder’s $8,846 report, the author says they were in the same situation, argued there were no spending limits, and were told limits were coming but they had to pay because it was their fault.

    burak emre

    @bu7emba · Original 𝕏 post

    @jpschroeder I hope they resolve your issue and cancel the bill! We were exactly in the same situation and they made us pay the bill. I argued that there is no spending limits but they told it's coming but we have to pay the bill because it's our fault.
  4. Author moves off Cloudflare

    Read on 𝕏

    The author writes that it was their fault but it made him stop using Cloudflare products and move to Kubernetes, keeping Cloudflare only as a CDN.

    burak emre

    @bu7emba · Original 𝕏 post

    @jpschroeder Yeah it’s our fault but that made me stop using all the Cloudflare products and move out to Kubernetes. It’s just my CDN now :(
D1

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Community resourceWorkers +8

Cloudflare Medivh: a self-hosted near-real-time bill estimator

An open-source, self-hosted monitor that adds today’s estimated usage cost to Cloudflare’s daily-updated billable usage, sends summaries, and calls a webhook when the current cycle crosses a budget.

Other

hfcorriez: $100+ of AI-driven extra usage over two months, reported cancelled after emails.

@hfcorriez says AI caused over $100 of extra consumption over two months. He says that after two rounds of email explaining the situation to Cloudflare, the charges were cancelled, and posts a screenshot of two negative line items (-$31.92 and -$75.42) marked Fully Applied.