AbuseIPDB API
Crowdsourced IP address reputation database for checking and reporting abusive IPs. Aggregates abuse reports from thousands of contributors for spam, DDoS, brute force, and malicious activity.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security-focused service with HTTPS enforced. API key via header (good practice). GDPR compliant. No scope granularity - one key has full read/write access to the account.
⚡ Reliability
Best When
An agent needs fast, simple IP reputation scoring to filter out known-bad actors, especially for abuse categories like spam, scanning, or brute force.
Avoid When
You need file or URL scanning, domain reputation, or very high throughput real-time checks.
Use Cases
- • Checking IP reputation before allowing access in security-aware agent workflows
- • Enriching security incidents with IP abuse history and confidence scores
- • Automated firewall rule generation based on IP abuse scores
- • Reporting abusive IPs back to the community database
- • Blocking known malicious IPs in web application security layers
Not For
- • File or URL malware scanning (use VirusTotal instead)
- • Domain reputation (limited to IP addresses)
- • Definitive blocking - crowdsourced data has false positives
- • High-frequency real-time blocking at network speeds
Interface
Authentication
API key passed via Key header. Simple single-key model. Free and paid tiers use same authentication mechanism.
Pricing
Agent Metadata
Known Gotchas
- ⚠ Confidence score of 100 doesn't mean definitely malicious - just high community report volume
- ⚠ Private IPs (RFC1918) return errors - agents must filter these before querying
- ⚠ Daily limits reset at midnight UTC - agents need to track usage across calls
- ⚠ Bulk endpoint (CIDR ranges) only available on paid tiers
- ⚠ Report endpoint requires specifying abuse categories from a fixed enum - agents must know the category codes
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for AbuseIPDB API.
Scores are editorial opinions as of 2026-03-06.