Get Your API Key
Sign up on RapidAPI to get your free API key. The free tier includes 100 requests per month.
Make Your First Request
Once you have your key, try a simple DNS lookup:
curl -H "X-API-Key: YOUR_KEY" "https://api.dns-toolkit.com/dns/lookup?domain=example.com&type=A"Python
import httpx
resp = httpx.get(
"https://api.dns-toolkit.com/dns/lookup",
params={"domain": "example.com", "type": "A"},
headers={"X-API-Key": "YOUR_KEY"},
)
print(resp.json())JavaScript
const resp = await fetch(
"https://api.dns-toolkit.com/dns/lookup?domain=example.com&type=A",
{ headers: { "X-API-Key": "YOUR_KEY" } }
);
const data = await resp.json();
console.log(data);Response Format
All endpoints return JSON by default. Add format=markdown to any request for human-readable Markdown output:
curl -H "X-API-Key: YOUR_KEY" "https://api.dns-toolkit.com/dns/lookup?domain=example.com&type=A&format=markdown"Explore Endpoints
The API has 36 endpoints across 7 categories:
- DNS — Lookups, propagation, bulk queries, resolver comparison
- Domain — WHOIS, availability, subdomains, TLD search
- Email — Security audit, validation, authentication
- Security — DNSSEC, certificates, headers, blacklists
- IP — Reverse DNS, ASN, geolocation
- Web — Tech stack, port scanning, redirects
- Tools — Record generators, NS benchmarks
Rate Limits
| Plan | Requests/Month | Price |
|---|---|---|
| Free | 100 | \/bin/bash |
| Pro | 10,000 | \.99/mo |
| Enterprise | 100,000 | \9.99/mo |
Need Help?
Check the full API reference for detailed docs on every endpoint, or visit the blog for tutorials and guides.