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ip-listed-on-spamhaus-pbl
x402
ip-listed-on-spamhaus-pbl is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-09).
Checks whether a given IPv4 address is listed on the Spamhaus PBL (Policy Block List) via DNSBL lookup, returning listed status, return codes, and reason text.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is this IPv4 address listed on spamhaus pbl (pbl.spamhaus.org)? Performs the DNSBL query (reversed octets under pbl.spamhaus.org, 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 whether the IPv4 address is listed on the Spamhaus PBL (yes/no), the specific DNSBL return codes from pbl.spamhaus.org, and where available, the reason text that Spamhaus publishes for the listing.
Example use cases
Email deliverability troubleshooting
“My emails keep getting rejected — can you check if 203.0.113.15 is on the Spamhaus PBL list and show me the return code and any reason they give?”
Pre-send IP reputation check
“Before I send this email campaign, can you verify whether our sending IP 192.0.2.87 is blacklisted on the Spamhaus PBL?”
ISP dynamic IP audit
“I suspect this customer's IP 198.51.100.200 is a dynamic residential address blocked by Spamhaus PBL — can you look it up and tell me if it's listed and why?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/blacklist/spamhaus-pbl?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a precise, single-list answer specifically for the Spamhaus PBL (Policy Block List), which covers dynamic and end-user IP ranges. Prefer this over the Spamhaus ZEN composite list when you want to isolate PBL-specific listings (e.g. diagnosing residential/dynamic IP blocks) rather than a combined spam/exploit/policy result.
Side effects
- Invalid or non-routable IPv4 address provided — returns error or not-listed result
- DNS resolution failure via Cloudflare DoH — may return an error or timeout
- IPv6 addresses are not supported — endpoint is IPv4-only
- Spamhaus PBL service temporarily unavailable — upstream DNS query fails
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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