aqs_is_available
Check if the EPA Air Quality System API is operational to verify connectivity before querying air quality data, using optional authentication or environment variables.
Instructions
Check if the EPA Air Quality System (AQS) API is operational. This is a health check endpoint that verifies the API is responding. Credentials are optional - uses environment variables (AQS_EMAIL, AQS_API_KEY) as fallback.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| No | Email address for API authentication (optional, falls back to AQS_EMAIL env var) | ||
| key | No | API key for authentication (optional, falls back to AQS_API_KEY env var) |