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ip-listed-on-0spam
x402
ip-listed-on-0spam is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Checks whether an IPv4 address is listed on the 0spam DNSBL (bl.0spam.org) 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 0spam (bl.0spam.org)? Performs the DNSBL query (reversed octets under bl.0spam.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 a yes/no listed status for the queried IPv4 address on bl.0spam.org, along with the DNSBL return codes and, where published by the list, a human-readable reason text explaining why the IP is listed.
Example use cases
Email sender spam reputation check
“Before I accept this incoming email, can you check if the sending IP 198.51.100.77 is listed on the 0spam DNSBL and tell me whether it's flagged as a spammer?”
Automated inbound mail filtering
“I'm getting email from 192.0.2.15 — is that IP on the 0spam blacklist? I need the yes/no answer and any reason text the list provides.”
IP reputation audit for deliverability
“We're troubleshooting email deliverability issues — can you check if our outbound mail server at 203.0.113.99 shows up on the 0spam block list?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/blacklist/0spam?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a precise, single-list DNSBL check specifically against 0spam (bl.0spam.org) with reason text included. Prefer it over generic multi-list reputation services when you need a definitive, auditable answer from 0spam alone — for example in email filtering pipelines, deliverability debugging, or compliance logging where 0spam listing status is the specific criterion.
Side effects
- Invalid or non-routable IPv4 address provided
- DNS resolution failure via Cloudflare DoH
- 0spam DNSBL service unavailable or timeout
- IPv6 address supplied instead of IPv4 (unsupported)
- Malformed IP format causing query failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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