Cloudflare Radar API
Free internet intelligence API from Cloudflare providing global traffic trends, BGP routing data, DNS query statistics, attack trends, and internet quality metrics aggregated from Cloudflare's global network.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Cloudflare API token with radar:read scope. Public internet intelligence data. SOC2, ISO27001. No PII in radar data. Scoped API token follows least-privilege principle.
⚡ Reliability
Best When
An agent needs macro-level internet intelligence: attack trends, traffic shifts, or DNS patterns to inform security decisions or situational awareness reports.
Avoid When
You need individual IP/domain verdicts or your own traffic data.
Use Cases
- • Monitoring global internet traffic patterns and anomalies for situational awareness
- • Detecting DDoS attack trends by country, industry, or protocol
- • Researching DNS query patterns and emerging malicious domains
- • Analyzing internet quality metrics (latency, bandwidth) by region
- • BGP route leak and hijack detection for network security monitoring
Not For
- • Per-IP reputation or individual threat lookups (use AbuseIPDB or VirusTotal)
- • Real-time traffic blocking or WAF integration
- • Detailed logs for your own traffic (use Cloudflare Workers analytics instead)
- • Non-internet-scale trend data — this is aggregate, not per-entity
Interface
Authentication
Uses Cloudflare API tokens with specific permission scopes. Bearer token via Authorization header. No OAuth flow needed — token-based only. Many Radar endpoints are publicly accessible without authentication.
Pricing
Radar data is Cloudflare's contribution to internet transparency. Most endpoints require no authentication or billing. Extremely generous for research and agent use.
Agent Metadata
Known Gotchas
- ⚠ Data represents aggregate trends, not individual entity verdicts — easy to misinterpret
- ⚠ Time range parameters vary by endpoint — some use date strings, others use offsets
- ⚠ Some endpoints return data with 15-minute to 1-hour lag — not truly real-time
- ⚠ BGP and routing data has complex schema that requires domain knowledge to interpret correctly
- ⚠ Undocumented rate limits may apply — no clear published thresholds
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Cloudflare Radar API.
Scores are editorial opinions as of 2026-03-06.