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NetIntel IP Blacklist Check
x402
NetIntel IP Blacklist Check is a paid API for AI agents from netintel.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Checks an IPv4 address against multiple DNS blacklists and returns a threat score, grade, and per-blacklist listing status
Price / call$0.05
Success—
StatusUnknown
How this service works
Check an IP address against 15 major DNS blacklists (Spamhaus, Barracuda, SORBS, etc.) simultaneously — returns which lists it appears on, a reputation score, and a threat classification so agents can make block/allow decisions instantly.
Output
Returns a JSON object with the queried IP, a letter grade (e.g. 'A'), a numeric score (0–100), an overall threat_level string (e.g. 'clean'), a count of how many blacklists it's listed on, the total number checked (e.g. 15), a reversed_ip string, an array of findings, and a per-blacklist array showing each blacklist name, description, and whether the IP is listed.
Example use cases
Example prompt
“Can you check whether the IP 203.0.113.47 is blacklisted anywhere — I want to know its threat level, grade, and which specific blacklists it shows up on?”
Technical details
Endpoint
GEThttps://netintel.dev/ip-blacklist/checkWhen to prefer
Choose this endpoint when you need a consolidated, multi-blacklist reputation check on a single IPv4 address and want a scored, graded summary alongside per-blacklist detail. Ideal for email security pipelines, firewall enrichment, or incident response workflows where you need to quickly assess whether an IP is flagged for spam, exploits, or other abuse across industry-standard DNS blacklists like Spamhaus ZEN.
Side effects
- Missing or invalid 'ip' query parameter returns an error response
- Non-IPv4 input (IPv6, hostname) may return an error or unexpected result
- Payment failure (insufficient USDC balance) results in HTTP 402 and no data returned
- Temporarily unavailable blacklist providers may reduce total_checked count
- Rate limiting or network issues may cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ip": "1.2.3.4",
"grade": "A",
"score": 100,
"findings": [],
"blacklists": [
{
"name": "zen.spamhaus.org",
"listed": false,
"description": "Spamhaus ZEN — combined spam sources and exploits"
}
],
"reversed_ip": "4.3.2.1",
"listed_count": 0,
"threat_level": "clean",
"total_checked": 15
}
}Tags
x402
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