IP Blacklist Lookup API
IP Blacklist Lookup checks whether a given IP address appears on known malicious IP blocklists. Identifies both inbound threats (attackers, spammers) and outbound threats (C2 servers, malware hosts).
Live Test API
Try out the IP Blacklist Lookup with a live request and see the response in real-time.
API Request
API Response
12345678910111213141516171819202122232425262728293031{ "status": "ok", "error": null, "data": { "ipAddress": "185.220.101.1", "isIPBlacklisted": true, "inbound": { "found": true, "description": "IP is known for malicious inbound activity (spam, scanning, brute-force attacks)" }, "outbound": null, "threatLevel": "high", "ipDetails": { "ip": "185.220.101.1", "country": "DE", "region": "BY", "timezone": "Europe/Berlin", "city": "Nuremberg", "coordinates": [ 49.4478, 11.0683 ], "countryName": "Germany", "regionName": "Bavaria", "postalCode": "90403", "continent": "EU", "continentName": "Europe", "accuracyRadius": 20 } } }
Multiple Access Methods
REST API with multiple response formats, GraphQL, and MCP for AI agents
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YAML
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Comma-separated values
GraphQL
Query language for APIs
MCP
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Frequently Asked Questions
Get answers to common questions about the IP Blacklist Lookup API
Who built the IP Blacklist Lookup API?
The IP Blacklist Lookup API is built and maintained by APIVerve. All 300+ APIs on our platform are developed in-house by the APIVerve team, ensuring consistent quality, unified authentication, predictable pricing, and enterprise-grade reliability backed by our 99.9% uptime SLA. We handle the infrastructure, maintenance, and updates so you can focus on building your application.
What does the IP Blacklist Lookup API do?
IP Blacklist Lookup checks whether a given IP address appears on known malicious IP blocklists. Identifies both inbound threats (attackers, spammers) and outbound threats (C2 servers, malware hosts). The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.
How fast is the IP Blacklist Lookup API?
The IP Blacklist Lookup API has an average response time of 636ms, with a median (p50) of 594ms and 99th percentile of 916ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.
How much does the IP Blacklist Lookup API cost?
Each call to the IP Blacklist Lookup API uses 1 credit. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.
How do I authenticate IP Blacklist Lookup API requests?
Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.
What HTTP methods does IP Blacklist Lookup support?
The IP Blacklist Lookup API supports GET requests. Simply pass your parameters as query strings in the URL. Check our documentation for detailed parameter specifications.
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