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IP Listed on Truncate DNSBL
x402
IP Listed on Truncate DNSBL is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Checks whether a given IPv4 address is listed on the Truncate DNSBL (truncate.gbudb.net) via Cloudflare DoH and returns listed status, return codes, and reason text.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is this IPv4 address listed on truncate (truncate.gbudb.net)? Performs the DNSBL query (reversed octets under truncate.gbudb.net, via Cloudflare DoH) and returns listed yes/no with the return codes and, where the list publishes one, the reason text. One list, one precise answer. $0.01 per lookup.
Output
Returns a yes/no listed flag indicating whether the IPv4 address appears on the Truncate DNSBL, along with any DNS return codes from the blocklist and, where published, a human-readable reason text explaining why the IP is listed.
Example use cases
Pre-send email deliverability check
“Before I send this marketing campaign, can you check if our outbound mail server IP 203.0.113.12 is listed on the Truncate DNSBL? I need to know the listing status and any reason code.”
Investigating spam complaint source
“We got a spam complaint and suspect the sending IP 198.51.100.77 is blacklisted — can you check if it's on the Truncate blocklist and give me the return codes and reason?”
New server IP vetting
“I'm about to configure a new email server at 192.0.2.100 — can you verify it's not listed on Truncate's DNSBL before I go live, including any reason text if it shows up?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/blacklist/truncate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a precise, single-list check against the Truncate DNSBL specifically (truncate.gbudb.net), rather than a broad multi-list reputation scan. It is ideal when you want an authoritative yes/no answer with return codes and reason text from that specific list, and when cost-efficiency ($0.01 per lookup) matters for high-volume checks.
Side effects
- Invalid or non-public IPv4 address provided — no meaningful DNSBL result
- DNS resolution failure via Cloudflare DoH — service may return an error or timeout
- IP not listed — returns listed=false with no return codes or reason
- Temporary upstream DNSBL unavailability — may result in lookup failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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