> ## Documentation Index
> Fetch the complete documentation index at: https://help.opus.pro/llms.txt
> Use this file to discover all available pages before exploring further.

# Limitations

## Credits

Ensure your account has sufficient credits to process the video before submitting a new project. When posting clips to `X` (formerly Twitter) through the social posting APIs, each post consumes `1` credit. Learn more about credits [<u>here</u>](/docs/article/how-are-credits-consumed).

## Rate Limit

The standard OpusClip API rate limit is `30` requests per minute per API key for the core project and clip APIs. Exceeding this limit will result in a `429` status code response.

### Monthly API Cap

The **Pro Beta** and **Max** plans include **15 hours** / **900 credits** of API usage per calendar month, per workspace. **Business** plans follow your contract.

When you have used **900 credits**, the API returns **`403`** (not `429`) so agent frameworks do not retry in a loop. Your API access resumes on the **first day of the next month (UTC)**, or you can [contact sales](https://www.opus.pro/contact-api) to upgrade. The OpusClip **web app** stays fully usable while the API is capped.

**Cap-hit response**

```json theme={"dark"}
{
  "code": "API_MONTHLY_CAP_REACHED",
  "reset_at": "2026-06-01T00:00:00Z",
  "upgrade_url": "https://www.opus.pro/contact-api"
}
```

### Social Posting Rate Limits

Social posting APIs use their own per-endpoint rate limits.

Refer to [<u>Social Posting Rate Limits</u>](/api-reference/endpoints/social-posting/overview#rate-limits) for the current limits for:

* `GET /api/social-accounts`
* `POST /api/social-copy-jobs`
* `GET /api/social-copy-jobs/{jobId}`
* `POST /api/post-tasks`
* `POST /api/publish-schedules`
* `DELETE /api/publish-schedules/{scheduleId}`

## Video Duration & Size Limit

The maximum video duration is `10` hours, with a maximum file size of `30` GB.

## Storage Limit

By default, all projects expire in `30` days. If auto-save is enabled for your account, projects will be automatically saved to your storage. Learn more about storage [<u>here</u>](/docs/article/cloud-storage).

## Concurrency Limit

* **Pro Beta & Max:** up to **4** projects running simultaneously.
* **Business:** up to **50** projects running simultaneously.
* Exceeding your limit returns **`429`** with response header `X-Cap-Reason: concurrent`.
* The limit lifts as soon as any in-flight project finishes (usually within a minute or two for short clips).
* Retry-after-backoff is the correct pattern.

## API project minimum

API projects have a **10-credit minimum** (about **10 minutes** of clip time). Submissions through the OpusClip **web app** are not subject to this API-only minimum.

## Supported Languages

We support over 20 languages, please take a look at the list of supported languages [<u>here</u>](/docs/article/video-languages-supported).