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SiteCheck Web Intel – Tor Exit Node Lookup
x402
SiteCheck Web Intel – Tor Exit Node Lookup is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Checks whether a given IPv4 address is a Tor exit node and returns relay metadata (nickname, flags, country, first/last seen) from Onionoo if it is.
Price / call$0.002
Success—
StatusUnknown
How this service works
Checks an IPv4 address against the Tor Project's bulk exit list (about 1,200 active exit IPs). If it is an exit, adds the relays for that address from Onionoo: nickname, flags, country, first and last seen. Only exit IPs are on the list; a relay's other IPs are not checked.
Output
Returns whether the IPv4 address is present on the Tor Project's bulk exit list (~1,200 active IPs). If it is a Tor exit node, also returns enriched relay details from Onionoo: relay nickname, flags (e.g. Exit, Guard, Stable), country code, and first/last seen timestamps. Non-exit IPs return a negative result with no relay metadata.
Example use cases
Fraud detection for suspicious login
“We just got a login attempt from 185.220.101.47 — can you tell me if that IP is a known Tor exit node so I can flag it as potentially anonymous traffic?”
Security audit of web traffic
“I'm reviewing our server logs and want to know if 94.230.208.147 is a Tor exit node. If it is, what country and relay flags does it have?”
Threat intel enrichment for SOC alert
“We have an alert on IP 199.87.154.255 — please check if it's on the Tor exit list and pull any Onionoo relay metadata like nickname and when it was active.”
Technical details
Endpoint
GEThttps://api.webintel-api.workers.dev/api/security/tor-exit-nodes?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, low-cost check of whether a specific IPv4 address is an active Tor exit node, with bonus relay metadata. Prefer it over generic IP reputation APIs when Tor-specific detection is the goal. Note it only covers exit nodes (~1,200 IPs), not all Tor relays or bridges, so pair with broader threat intel if full Tor relay coverage is needed.
Side effects
- IP not on exit list returns a negative/not-found result (not an error)
- Invalid or non-IPv4 input returns a 400 or validation error
- Relay's non-exit IPs are not checked and will always return negative
- Onionoo data may lag actual network state by hours
- API returns 402 if payment header is missing or invalid
- Cloudflare Worker timeout if upstream sources are slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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