RIPE Atlas NTP Measurement
atlas_measure_ntpCreate NTP measurements across distributed probes to measure clock offset and delay from any NTP server.
Instructions
Create an NTP measurement on the RIPE Atlas network.
Queries NTP time servers from distributed probes to measure clock offset and delay.
Args:
target (string): NTP server hostname or IP
packets (1-16): Number of packets (default: 3)
timeout: Timeout per packet in ms
probe_count, from_country, etc.: Probe selection
Returns: Measurement ID(s).
Requires: RIPE_ATLAS_API_KEY with 'create measurement' permission.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| target | Yes | Target hostname or IP address | |
| af | No | Address family: 4 for IPv4, 6 for IPv6 | |
| description | No | Human-readable description of the measurement | |
| is_oneoff | No | If true (default), run once. If false, run periodically at 'interval' | |
| interval | No | Interval in seconds between measurements (only used when is_oneoff=false) | |
| resolve_on_probe | No | Resolve DNS names on probe instead of RIPE servers | |
| tags | No | Tags to apply to the measurement | |
| response_format | No | Output format: 'json' for structured data or 'markdown' for human-readable | json |
| probe_count | No | Number of probes to use (1-1000, default: 5) | |
| from_country | No | Two-letter ISO country code to select probes from (e.g. 'DE', 'US') | |
| from_asn | No | ASN number to select probes from | |
| from_prefix | No | IP prefix to select probes from (e.g. '193.0.0.0/21') | |
| from_area | No | Geographic area to select probes from | |
| from_probes | No | Comma-separated list of specific probe IDs to use | |
| include_tags | No | Only include probes with these tags (e.g. ['system-ipv6-works']) | |
| exclude_tags | No | Exclude probes with these tags | |
| packets | No | Number of packets (1-16, default: 3) | |
| timeout | No | Timeout per packet in ms |