WHOISJSON vs WhoisXML API - Domain API Comparison

Overview

WHOISJSON

WHOIS, DNS, SSL, and availability API with a lightweight free plan

WHOISJSON packages WHOIS, DNS, SSL certificate, and availability lookups into a lightweight API for teams that need practical lookup coverage without enterprise overhead.

Free plan available

WhoisXML API

Enterprise Domain, IP & DNS Intelligence

WhoisXML API offers product-specific WHOIS, DNS, IP, and threat data packages plus annual enterprise bundles for research, fraud, and security teams.

Complimentary credits after signup

Pricing Comparison

Pricing	WHOISJSON	WhoisXML API
Free Tier	Free plan available	Complimentary credits after signup
Paid Plans	From $10/month	Product-specific subscriptions
Enterprise	Higher-volume plans available	Enterprise annual subscriptions
TLD Coverage	1,500+ TLDs	7,500+ TLDs

Feature Comparison

Feature	WHOISJSON	WhoisXML API
Free Tier	Included	Limited
API Access	Included	Included
Bulk Operations	Limited	Included
Real-time Data	Included	Included
WHOIS Data	Included	Included
DNS Lookup	Included	Included
Domain Valuation	Not Included	Not Included
Brand Monitoring	Not Included	Premium Only
MCP/AI Integration	Not Included	Not Included

Which is Better?

Choose WHOISJSON if you need

Covers WHOIS, DNS, SSL, and availability in one API
Simple entry pricing and low-friction onboarding
Useful free tier for early testing and prototypes

Choose WhoisXML API if you need

Very broad domain and infrastructure coverage
Historical WHOIS, DNS, and threat data
Enterprise packages for security workflows

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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