Back to Browse
IP Listed on Blocklist.de (bl.blocklist.de) DNSBL Lookup
x402
IP Listed on Blocklist.de (bl.blocklist.de) DNSBL Lookup 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 bl.blocklist.de by performing a DNSBL query 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 blocklist de (bl.blocklist.de)? Performs the DNSBL query (reversed octets under bl.blocklist.de, 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 indicator for the queried IPv4 on bl.blocklist.de, along with the raw DNSBL return codes from the DNS response and, where blocklist.de publishes one, a human-readable reason text explaining why the IP was listed.
Example use cases
Email deliverability pre-send check
“Before we send out the newsletter campaign, can you check whether our mail server IP 203.0.113.15 is listed on blocklist.de? I need to know if we're blacklisted and why.”
Incoming connection abuse screening
“We just got a suspicious connection from 45.33.32.156 — can you check if that IP is on the blocklist.de blacklist and give me the return codes?”
Server IP reputation audit
“I want to know if my new VPS at 198.51.100.77 has a bad reputation — can you look it up on bl.blocklist.de and tell me if it's listed and for what reason?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/blacklist/blocklist-de?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, precise single-list DNSBL lookup against bl.blocklist.de specifically — ideal for checking IP reputation for abuse, spam, or attack history as tracked by blocklist.de. Prefer this over generic multi-list reputation APIs when you want a definitive yes/no answer with reason text from this particular list, or when you need to triage whether an IP appears on one of the most widely monitored abuse databases.
Side effects
- Invalid or non-routable IPv4 address supplied — query may return an error or no result
- IP not listed returns a negative result with no reason text
- DNSBL query failure due to transient DNS resolution issues via Cloudflare DoH
- IPv6 addresses are not supported — only IPv4 is accepted
- Rate limiting or payment failure resulting in HTTP 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"