RDAP API Alternatives

Why Switch from RDAP API?

RDAP API is a solid domain API provider, but it's not the only option. Whether you're looking for better pricing, more features, or simply want to explore what else is available - you've come to the right place.

We compare the key differences between RDAP API and its alternatives. DomScan is one option for teams that value a recurring free tier, a broad toolkit, and remote MCP access.

Common Reasons to Switch

You need a broader domain intelligence platform beyond RDAP
You want DNS, valuation, and monitoring in one API
You need a stronger free tier and more product surface area
You want a more mature platform for customer-facing domain tools

Who Should Stay with RDAP API

Stay with RDAP API if your product is primarily centered on clean RDAP retrieval and normalization.

Side-by-Side Comparison: DomScan vs RDAP API

DomScan

Modern Domain Intelligence API

DomScan is a developer-first domain intelligence platform offering real-time availability checks, RDAP data, domain valuation, and AI integration via MCP.

Free: 10,000 credits/month

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.

Seven-day free trial on every plan

Pricing Comparison

Pricing	DomScan	RDAP API
Free Tier	Free: 10,000 credits/month	Seven-day free trial on every plan
Paid Plans	Pay-as-you-go from $10	$9/month Starter plan
Enterprise	Custom pricing	$199/month Business plan
TLD Coverage	1,100+ TLDs	RDAP-enabled registries

Sources

Last updated: 2026-07-29

Feature Comparison

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

Where RDAP API Excels

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

DomScan Advantages

Free tier with 10,000 credits/month - no credit card required
1,100+ TLDs backed by live RDAP coverage
MCP integration for AI assistants like Claude
Domain valuation, brand monitoring, and OSINT tools
Modern REST API with JSON responses

Switching from RDAP API

Migrating from RDAP API to DomScan is straightforward. DomScan uses standard REST endpoints with JSON responses and predictable authentication.

Quick example:
# Check domain availability with DomScan
curl "https://domscan.net/v1/status?name=example&tlds=com,net,org" \
  -H "X-API-Key: your-api-key"

# Response
{
  "name": "example",
  "results": [
    { "domain": "example.com", "available": false, "source": "rdap" },
    { "domain": "example.net", "available": false, "source": "rdap" },
    { "domain": "example.org", "available": false, "source": "rdap" }
  ]
}

Frequently Asked Questions

How easy is it to switch from RDAP API to DomScan?

DomScan uses standard REST APIs with JSON responses, making migration straightforward. Most integrations can be updated in minutes by changing the endpoint URL and adjusting the response parsing.

Is DomScan cheaper than RDAP API?

DomScan offers a generous free tier of 10,000 credits/month with no credit card required. For most use cases, DomScan provides better value with transparent pay-as-you-go pricing.

Does DomScan have all the features of RDAP API?

DomScan covers availability, WHOIS/RDAP, DNS, valuation, monitoring, and security workflows. Feature depth differs by provider, so compare the endpoints and limits your integration needs.

What support options does DomScan offer?

DomScan provides public documentation and email support. Contact us before purchase if you need contractual support or service commitments.