---
url: /relyai-acellemail/guides/quotas-limits-and-credits.md
description: >-
  Cap AI usage with per-task rate limits and an optional per-customer daily cap,
  understand AI Credits on the subscription page, and move usage onto customers'
  own keys.
---

# Quotas, limits and credits

AI costs money, so RelyAI gives you three levers to keep it in check: rate caps that throttle bursts,
an optional daily cap per customer, and the option to move usage onto customers' own provider keys.
This guide walks through each.

## Per-task rate caps

Open **RelyAI → Settings → Quotas & Limits**. Each AI task has a rate cap so no one can hammer your
provider. The defaults are **20 per minute** and **500 per hour**. Lower them if you want a tighter
leash; raise them if legitimate use is being throttled.

![The Quotas & Limits settings tab](/relyai-acellemail/img/relyai-quotas-limits-and-credits-tab.png)
*RelyAI → Settings → Quotas & Limits*

On top of your own caps, RelyAI respects your provider's rate limits: if the provider returns a
"too many requests" response (a 429), RelyAI backs off rather than pushing through.

## Per-customer daily cap

You can also set an optional **per-customer daily cap** — the maximum AI requests a single customer
can make in a day. The default is **0, which means uncapped**. Set a number to stop any one customer
from consuming a disproportionate share.

## AI Credits

If your plan meters AI, customers see an **AI Credits** card on their **subscription** page, sitting
alongside the Sending and Verification credit cards. It shows how much is **remaining this cycle**.
On plans without metering, the card reads **No AI metering on this plan**. These credits come from
AcelleMail's own AI-generation credit type, so they follow the plan you've already configured there.

## Moving usage onto customers' own keys

If you'd rather not spend your own provider budget on customer activity, let customers bring their own
key. Enable that option when you [connect an engine](/relyai-acellemail/guides/connect-an-engine);
customers then enter a key under **Account → AI**, and their AI usage runs on *their* provider quota
instead of your system key. This is the cleanest way to make heavy users cover their own cost.

## Related pages

* [Connect an engine](/relyai-acellemail/guides/connect-an-engine)
* [Settings reference](/relyai-acellemail/settings)