> For the complete documentation index, see [llms.txt](https://docs.yetanotherapi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yetanotherapi.com/api-documentation/authentication.md).

# Authentication

### Overview

All requests to YetAnotherAPI services require authentication. This document outlines the authentication process and best practices for securing your API access.

### API Key Authentication

#### Obtaining an API Key

1. Sign up for an account at YetAnotherAPI platform
2. Navigate to the API Keys section in your dashboard
3. Generate a new API key for your application

#### Using Your API Key

Include your API key in the request header for all API calls:

```
x-api-key: YOUR_API_KEY
```

#### Example Request

```bash
curl --location 'https://api.yetanotherapi.com/v1/endpoint' \
--header 'x-api-key: YOUR_API_KEY_HERE' \
--header 'Content-Type: application/json'
```

### Security Best Practices

1. **Key Protection**
   * Never expose your API key in client-side code
   * Don't commit API keys to version control
   * Rotate keys periodically for enhanced security
2. **Environment Management**
   * Use different API keys for development and production
   * Store keys in secure environment variables
   * Implement key rotation procedures
3. **Access Control**
   * Monitor API key usage regularly
   * Revoke compromised keys immediately
   * Use the minimum required permissions for each key

### Error Responses

| Status Code | Description              | Solution                                 |
| ----------- | ------------------------ | ---------------------------------------- |
| 401         | Invalid API key          | Check if key is correct and active       |
| 403         | Insufficient permissions | Verify key has required access levels    |
| 429         | Rate limit exceeded      | Reduce request frequency or upgrade plan |

### Support

If you encounter authentication issues or need assistance, contact our support team through the support portal.