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

# Usage and Limits

> Understand Comfy Cloud credits, concurrent jobs, and the limits that apply when running workflows through the SDK.

Workflows submitted through the Comfy Cloud API use the same credits and concurrency limits as other Cloud workflows.

## Credits and usage

API requests draw from the same monthly credit allocation as the Comfy Cloud web UI. There is no separate API credit pool. Each tier's included credits, top-up options, and per-workflow runtime caps apply to API jobs in the same way as UI jobs.

See the [pricing page](https://www.comfy.org/cloud/pricing?utm_source=docs\&utm_campaign=cloud-api) for monthly credit amounts and top-up options. You can purchase top-ups from your account dashboard.

## Concurrent jobs

You can submit multiple workflows without waiting for previous jobs to complete. Jobs run in parallel up to your subscription tier's limit. Check [platform.comfy.org](https://platform.comfy.org) for your current concurrency limit. Additional jobs queue and run as slots become available.

If the queue is full, the SDKs retry within a bounded budget before raising `QueueFull`.

<Info>
  Parallel execution is available through the API. See the [pricing plans](https://www.comfy.org/cloud/pricing?utm_source=docs\&utm_campaign=cloud-api) for subscription details.
</Info>

## Existing v1 integrations

The deprecated [v1 Cloud API](/development/cloud/overview) also runs against Comfy Cloud. Use it for existing integrations or Cloud capabilities not yet available in [Comfy API v2](/api-reference/v2/overview). Runnable examples are in the deprecated [Cloud API Reference](/development/cloud/api-reference).

## Next steps

<Card title="Comfy Cloud Quickstart" icon="play" href="/development/deploy/cloud">
  Set up the SDK and run your first Cloud workflow.
</Card>