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

# Connection & Usage

> Troubleshoot connection and usage issues with APIMart

## Q1: Unable to connect to APIMart service?

If you cannot connect to APIMart service, please check the following:

* Verify your API Key is correctly configured
* Check your network connection
* Confirm the API endpoint address is correct: `https://api.apimart.ai`
* Check if firewall or proxy settings are blocking the connection

## Q2: No response or errors after selecting a model?

This could be due to:

* API Key not properly configured or expired
* Selected model may be temporarily unavailable
* Incorrect request format
* Insufficient account balance

Please visit the [APIMart Dashboard](https://apimart.ai) to check your account status and API key.

## Q3: What to do when encountering dialogue errors or interruptions?

When encountering dialogue errors:

* Check the specific information in the error message
* Verify request parameters comply with API specifications
* Review API documentation for correct request format
* Contact technical support if the issue persists