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BGP Route Leak Risk Detector
x402
BGP Route Leak Risk Detector is a paid API for AI agents from netz.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).
Analyzes all observed AS paths for a given IP prefix and flags anomalous patterns indicative of route leaks, including path loops and unusually long paths relative to the prefix's median path length.
Price / call$0.006
Success—
StatusUnknown
How this service works
Looks at every AS path observed for a prefix and reports the ones that do not fit. Four patterns are checked. A path loop, where an AS appears twice with other ASes in between, which prepending does not produce and a leak does. An unusually long path, measured against the median length of all paths to the same prefix rather than a fixed number, because path length is a property of where you sit in the network.
Output
Returns a structured risk report per observed AS path, including which of the two anomaly patterns were detected (AS path loop where an AS appears non-consecutively, or statistically long path measured against the median for that prefix), the flagged paths themselves, and overall risk indicators for the prefix.
Example use cases
ISP prefix hijack early warning
“Can you check 203.0.113.0/24 for route leak risk? I want to know if there are any AS path loops or paths that are way longer than usual, which might indicate someone is leaking our routes.”
CDN prefix integrity monitoring
“Run a route leak check on 198.51.100.0/22 for me — flag any anomalous AS paths, especially loops where an AS appears twice with other ASes in between, and any paths that are statistically longer than the median.”
Enterprise security posture audit
“I need to audit our announced prefix 10.0.0.0/8 for BGP route leak indicators — specifically check for AS path loops and any paths that are unusually long compared to the typical length other observers see for this prefix.”
Technical details
Endpoint
POSThttps://netz.halowerk.com/v1/route-leak-riskWhen to prefer
Use this endpoint when you need to detect BGP route leaks specifically through AS path structural analysis — particularly path loops and statistically anomalous path lengths — rather than origin-based hijack detection or RPKI validation. It is more nuanced than simple hop-count thresholds because it normalizes path length against the actual median for that prefix rather than a fixed global number, making it appropriate for prefixes in diverse topological positions in the network.
Side effects
- Prefix not found in RIS observation data — no paths available to analyze
- Invalid or malformed CIDR prefix input
- Prefix too specific or unadvertised — insufficient path data for median calculation
- Transient BGP data feed unavailability causing incomplete results
- False positives on legitimate traffic engineering multi-homing configurations
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| prefix | string | |
| max_paths | integer | How many observed paths to examine. |
Tags
x402
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