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

# Error Codes FAQs

> Get answers to the most common error codes and troubleshooting steps for Helius API requests

## Common Error Codes

> [accordion] Why am I getting a 401 error?
>
> 401 errors indicate authentication issues. Check that your API key is correct, properly included in your request (as `?api-key=YOUR_API_KEY`), and that your account has access to the endpoint you're trying to use.

> [accordion] Why am I getting a 429 error?
>
> 429 errors mean you've exceeded your rate limits. Check your [rate limits](https://www.helius.dev/docs/billing/rate-limits.md) and consider upgrading your plan or implementing request throttling in your application.

> [accordion] Why am I getting a 500 error?
>
> 500 errors are internal server errors. Check our [status page](https://helius.statuspage.io/) for any ongoing incidents. If the issue persists, [contact support](https://www.helius.dev/docs/support) with your request details.

> [accordion] Why am I getting a 503 error?
>
> 503 errors indicate the service is temporarily unavailable, often due to high load or maintenance. Check our [status page](https://helius.statuspage.io/) for updates and try again after a brief delay.

> [accordion] Why am I getting a 504 error?
>
> 504 errors are gateway timeouts, typically caused by requests taking too long to process. Consider reducing the scope of your request, using pagination, or optimizing your query parameters.

***

## Need More Help?

> [card] [Contact Support](https://www.helius.dev/docs/support/contact-support)
>
> Get help from our team through Discord, chat, or email support.

> [card] [Status Page](https://www.helius.dev/docs/support/status-page)
>
> Check real-time service availability and performance information.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.