Overview
Dynadot API
Registrar API for Bulk Investors and Resellers
Dynadot offers REST and legacy APIs with 120+ actions covering registration, transfers, DNS, aftermarket workflows, and bulk investor tooling.
Regular tier: free API accessSecurityTrails
DNS & Domain Intelligence for Security Research
SecurityTrails provides comprehensive DNS intelligence, passive DNS data, subdomain enumeration, and WHOIS history for security researchers and threat intelligence teams.
50 queries/month freePricing Comparison
| Pricing | Dynadot API | SecurityTrails |
|---|---|---|
| Free Tier | Regular tier: free API access | 50 queries/month free |
| Paid Plans | Bulk: $500+/year spend | Usage-based plans via sales |
| Enterprise | Super bulk: $5,000+/year spend | Custom enterprise plans |
| TLD Coverage | 500+ TLDs | 320M+ domains indexed |
Feature Comparison
| Feature | Dynadot API | SecurityTrails |
|---|---|---|
| Free Tier | Not Included | Limited |
| API Access | Limited | Included |
| Bulk Operations | Included | Included |
| Real-time Data | Included | Included |
| WHOIS Data | Included | Included |
| DNS Lookup | Limited | Included |
| Domain Valuation | Included | Not Included |
| Brand Monitoring | Not Included | Limited |
| MCP/AI Integration | Not Included | Not Included |
Which is Better?
Choose Dynadot API if you need
- Excellent for domain investors
- Low-cost domain pricing
- 120+ domain and aftermarket actions
Choose SecurityTrails if you need
- Massive passive DNS database
- Excellent subdomain enumeration
- Historical WHOIS and DNS data
Consider DomScan Instead
DomScan offers the best of both worlds with comprehensive features and developer-friendly pricing.
- ✓ Free tier: 10,000 credits/month (no credit card)
- ✓ 1,500+ TLDs supported
- ✓ MCP integration for AI assistants
- ✓ Domain valuation, brand monitoring, OSINT
Related Comparisons
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