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

# Limits & Quotas

> Plan limits, API rate limits, and platform quotas

## Platform

* **Availability terms:** Plan- and contract-dependent
* **Response latency:** Depends on model, voice provider, transcriber, network path, and enabled tools
* **Voices:** Hundreds across 50+ languages
* **Agents:** Unlimited — no cap on the number of agents

## Plan Limits

Some limits are commercial and plan-dependent (for example: included minutes, concurrent calls, and knowledge bases).

Use these as source of truth for your account's current values:

* [Plans](/billing/plans)
* [Usage & Pricing](/billing/overview)

<Note>
  Plan packaging and pricing can change over time. This page focuses on technical limits enforced by the API/runtime.
</Note>

***

## API Rate Limits

API requests are rate-limited to protect platform stability. Contact [support@itellico.ai](mailto:support@itellico.ai) if you need specific rate limit details for your integration.

When you exceed a limit, the API returns HTTP `429 Too Many Requests` with error code `rate_limit_exceeded`.

Recommended client behavior:

1. Retry with exponential backoff.
2. Add jitter to avoid synchronized retries.
3. Reduce burst traffic (batch where possible).

***

## Selected File Limits

Several upload flows enforce hard file-size caps. Common limits include:

| Resource type              | Limit                              |
| -------------------------- | ---------------------------------- |
| Knowledge base file upload | 10 MB per file                     |
| Conversation attachments   | 10 MB per file                     |
| Many audio/media uploads   | 10 MB per file (endpoint-specific) |

For commercial pricing/overage details, see [Usage & Pricing](/billing/overview).

***

## Next Steps

<CardGroup cols={2}>
  <Card title="Plans" icon="credit-card" href="/billing/plans">
    Compare plans and features
  </Card>

  <Card title="Usage & Pricing" icon="calculator" href="/billing/overview">
    Understand per-minute costs and billing
  </Card>

  <Card title="API Reference" icon="brackets-curly" href="/api-reference/introduction">
    View full API documentation
  </Card>

  <Card title="Supported Providers" icon="microchip" href="/reference/supported-providers">
    Browse AI models, voices, and transcription engines
  </Card>
</CardGroup>