Overview
RDAP API
RDAP-first domain, IP, and ASN lookup API
RDAP API centers on RDAP lookups for domains, IP ranges, and ASNs for teams that want structured registration data without buying a larger intelligence platform.
Trial accessViewDNS
DNS, WHOIS, and Reverse Lookup Toolkit
ViewDNS.info offers a broad toolbox of DNS, reverse IP, reverse MX, WHOIS, and IP history lookups for investigators and operators.
Free web UIPricing Comparison
| Pricing | RDAP API | ViewDNS |
|---|---|---|
| Free Tier | Trial access | Free web UI |
| Paid Plans | Usage-based API plans | API plans from $25/month |
| Enterprise | Higher-volume options | Professional and business API tiers |
| TLD Coverage | RDAP-enabled registries | All major TLDs supported |
Feature Comparison
| Feature | RDAP API | ViewDNS |
|---|---|---|
| Free Tier | Limited | Included |
| API Access | Included | Included |
| Bulk Operations | Limited | Limited |
| Real-time Data | Included | Included |
| WHOIS Data | Included | Included |
| DNS Lookup | Not Included | Included |
| Domain Valuation | Not Included | Not Included |
| Brand Monitoring | Not Included | Not Included |
| MCP/AI Integration | Not Included | Not Included |
Which is Better?
Choose RDAP API if you need
- Focused RDAP experience for domains, IPs, and ASNs
- Cleaner fit for modern registration-data workflows
- Good option for teams that do not need a huge platform
Choose ViewDNS if you need
- Free web-based tools
- Wide range of reverse lookup tools
- Fast to evaluate from the browser
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
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