| zc_error_codes | ZENTRA device and sensor error codes |
| zc_get_readings | Download sensor readings for a device |
| zc_has_key | Check whether an API key is available |
| zc_label_errors | Add human-readable error labels to readings |
| zc_list_devices | List the devices your API key can access |
| zc_pivot_wider | Reshape tidy readings into wide format |
| zc_set_key | Set your ZENTRA Cloud API key |
| zc_store_access | Read, write, and inspect a zentraR store |
| zc_store_csv | Store readings as CSV files |
| zc_store_last_time | Read, write, and inspect a zentraR store |
| zc_store_memory | Store readings in memory (session only) |
| zc_store_rds | Store readings as RDS files |
| zc_store_read | Read, write, and inspect a zentraR store |
| zc_store_write | Read, write, and inspect a zentraR store |
| zc_sync | Incrementally fetch and store readings |