> ## Documentation Index
> Fetch the complete documentation index at: https://manifest.build/llm-gateway/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# M200: Usage limit exceeded

> M200 is returned when a harness exceeds a cost or token limit configured in the dashboard.

## What you saw

```text theme={"theme":{"light":"github-light","dark":"github-dark"}}
[🦚 Manifest M200] You hit your cost limit: $12.50 used, $10.00/day allowed. Adjust it here: https://app.manifest.build/...
See https://manifest.build/llm-gateway/docs/errors/M200
```

The metric (cost or tokens), used amount, threshold, and period vary based on the rule you tripped.

The response arrives as HTTP 200 with this text in the assistant message content, not as a 429. A client branching on the HTTP status sees a normal completion.

## Why it happened

You set a limit on the harness's [Limits](/llm-gateway/docs/llm-gateway/docs/observability#spend-alerts) page (say, "\$10/day" or "500k tokens/hour"), and the current period's usage just crossed it. The gateway blocks every following request until the period resets or you raise the cap.

This is different from [M204](/llm-gateway/docs/llm-gateway/docs/errors/M204), which is the LLM Gateway Cloud Free plan monthly request quota, and different from provider 402 errors such as "insufficient credits" from OpenRouter.

## How to fix it

1. Open the dashboard link in the error message. It goes straight to the harness's **Limits** page.
2. Raise the threshold, change the period, or wait for it to reset. The error message tells you which period was hit.
3. Retry the request.

## Related

* [Spend alerts](/llm-gateway/docs/llm-gateway/docs/observability#spend-alerts)
* [Hard limits](/llm-gateway/docs/llm-gateway/docs/llm-gateway#hard-limits)
* [M201: Per-user rate limit](/llm-gateway/docs/llm-gateway/docs/errors/M201)
* [M202: Per-IP rate limit](/llm-gateway/docs/llm-gateway/docs/errors/M202)
* [M203: Concurrency limit](/llm-gateway/docs/llm-gateway/docs/errors/M203)
* [M204: Monthly request limit reached](/llm-gateway/docs/llm-gateway/docs/errors/M204)
* [All error codes](/llm-gateway/docs/llm-gateway/docs/errors)