Domain API Reviews

From $49.99/month for 250,000 credits on Freelance

ScrapingBee →

Request-oriented collection with JavaScript rendering, proxies, geography, screenshots, and extraction rules.

From $49/month for 100,000 credits on Hobby

ScraperAPI →

Configurable HTML retrieval with rendering, proxies, sessions, geotargeting, parsing, and crawler-oriented requests.

From Pay as you go with target-specific HTTP and browser response tiers

Zyte →

HTTP retrieval, browser rendering, actions, sessions, downloads, screenshots, and extraction.

From $29/month Starter plan plus usage, with $29 of spend included

Apify →

Programmable Actors, browser automation, crawlers, schedules, APIs, and structured Store solutions.

From $1.50 per 1,000 successful records on pay as you go

Bright Data →

Structured site scrapers, raw web access, rendering, batch jobs, schedules, and JSON or CSV delivery.

From $16/month for 45,000 credits on Build

ZenRows →

Fetch, Extract, Batch, browser sessions, and API, SDK, CLI, and MCP interfaces.

From $25/month billed yearly for 20,000 units on Prototyping

Browserless →

Managed Chrome, WebKit, and Firefox sessions with BrowserQL, Puppeteer, Playwright, REST, and proxy options.

URL intelligence APIs

BuiltWith →

Website technology intelligence and historical stack data API

From $295/month for the Basic plan

From $450/month Business plan with 20,000 API credits

Wappalyzer →

Technology lookup, company enrichment, and alerts API

From $5,000/year Automate plan

urlscan.io →

URL scanning, phishing analysis, and brand monitoring API

From $16/month billed yearly for 5,000 pages on Hobby

Firecrawl →

Scrape, crawl, map, search, extraction, parsing, and agent-oriented public web workflows.

From $1.50 per 1,000 successful records on pay as you go

Bright Data →

Structured site scrapers, raw web access, rendering, batch jobs, schedules, and JSON or CSV delivery.

Technology detection APIs

Host.io →

Domain Intelligence and Technology Detection API

From $99/month for 10,000 requests

Technology detection APIs

BuiltWith →

Website technology intelligence and historical stack data API

From $295/month for the Basic plan

Technology detection APIs

Wappalyzer →

Technology lookup, company enrichment, and alerts API

From $450/month Business plan with 20,000 API credits

Technology detection APIs

urlscan.io →

URL scanning, phishing analysis, and brand monitoring API

From $5,000/year Automate plan

Domain availability APIs

WhoAPI →

Established Domain Availability & WHOIS API

From $52/month for 40,000 requests

From Status from $0.0005/request after the free allowance

Domainr (Fastly) →

Fastly-backed Domain Search API

From From $0.50/hosted zone/month plus DNS query usage

DNSimple →

Registrar API with DNS Hosting & Automation

From WHOIS from $0.0085/call after the free allowance

JsonWhois →

Simple WHOIS API

From $75/month for 50,000 credits

WhoisFreaks →

WHOIS & DNS Intelligence API

From $2 one-time for 1,000 WHOIS lookups

Whoxy →

WHOIS history, reverse WHOIS, and bulk lookup API

From $10/month for 30,000 requests

WHOISJSON →

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

Atom Connect →

Domain valuation, trademark screening, and discovery APIs

From Custom pricing

From $9/month Starter plan

RDAP API →

RDAP-first domain, IP, and ASN lookup API

From €79 one-time for 10,000 credits

DNSlytics →

Reverse DNS Analytics and Tracking Code Discovery

From Live per-domain registration, renewal, and transfer pricing

GoDaddy API →

Domain Registrar API

From Production requires 20 domains, a $50 balance, or $50 recent spend

Namecheap API →

Domain Registrar API

From Variable per-domain and TLD transaction pricing

Name.com API →

Domain Registrar REST API

From Variable per-TLD domain transaction pricing

Dynadot API →

Registrar API for Bulk Investors and Resellers

From Variable per-TLD pricing at Rate A

Gandi API →

European Registrar API with LiveDNS

From Registry wholesale domain cost with no markup

Cloudflare Registrar →

At-Cost Registrar with Beta API Workflows

From Variable per-domain transaction pricing

Porkbun API →

Low-cost registrar API with DNS and SSL automation

From Essential reseller tier with variable domain pricing

OpenSRS →

Reseller-focused domain API for large portfolios

WHOIS and RDAP APIs

WhoAPI →

Established Domain Availability & WHOIS API

From $52/month for 40,000 requests

From $30/month for 2,000 WHOIS queries

WhoisXML API →

Enterprise Domain, IP & DNS Intelligence

From $99/month individual membership, web access only

DomainTools →

Enterprise Domain Intelligence & Threat Research

From WHOIS from $0.0085/call after the free allowance

JsonWhois →

Simple WHOIS API

From $75/month for 50,000 credits

WhoisFreaks →

WHOIS & DNS Intelligence API

From $49/month for 5,000 Domain WHOIS queries

IP2WHOIS →

WHOIS API with IP2Location Integration

From $2 one-time for 1,000 WHOIS lookups

Whoxy →

WHOIS history, reverse WHOIS, and bulk lookup API

From $10/month for 30,000 requests

WHOISJSON →

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

From $9/month Starter plan

RDAP API →

RDAP-first domain, IP, and ASN lookup API

SecurityTrails →

DNS & Domain Intelligence for Security Research

From Contact sales

From $29/month for 1,000 queries

ViewDNS →

DNS, WHOIS, and Reverse Lookup Toolkit

DNS and infrastructure APIs

DNSimple →

Registrar API with DNS Hosting & Automation

From From $0.50/hosted zone/month plus DNS query usage

From $30/month for 2,000 WHOIS queries

WhoisXML API →

Enterprise Domain, IP & DNS Intelligence

From $99/month for 10,000 requests

Host.io →

Domain Intelligence and Technology Detection API

From $149/month Builder plan

FullHunt →

External attack surface, subdomain, and typo-monitoring API

From $49/month Freelancer plan

Netlas →

Internet-wide scanning, DNS, SSL, and WHOIS datasets

Robtex →

Passive DNS, domain reputation, and infrastructure lookup API

From $19/month Pro plan

SecurityTrails →

DNS & Domain Intelligence for Security Research

From Contact sales

From $29/month for 1,000 queries

ViewDNS →

DNS, WHOIS, and Reverse Lookup Toolkit

From $129/month Delivery Center

MxToolBox →

Email Security & DNS Diagnostic Tools

From $10/month Starter, billed annually

HackerTarget →

Security Testing & DNS Reconnaissance

From €79 one-time for 10,000 credits

DNSlytics →

Reverse DNS Analytics and Tracking Code Discovery

From Live per-domain registration, renewal, and transfer pricing

GoDaddy API →

Domain Registrar API

From Production requires 20 domains, a $50 balance, or $50 recent spend

Namecheap API →

Domain Registrar API

From Variable per-domain and TLD transaction pricing

Name.com API →

Domain Registrar REST API

From Variable per-TLD pricing at Rate A

Gandi API →

European Registrar API with LiveDNS

From Registry wholesale domain cost with no markup

Cloudflare Registrar →

At-Cost Registrar with Beta API Workflows

From Variable per-domain transaction pricing

Porkbun API →

Low-cost registrar API with DNS and SSL automation

From Essential reseller tier with variable domain pricing

OpenSRS →

Reseller-focused domain API for large portfolios

Domain valuation and pricing APIs

Domainr (Fastly) →

Fastly-backed Domain Search API

From Status from $0.0005/request after the free allowance

From $99/month individual membership, web access only

DomainTools →

Enterprise Domain Intelligence & Threat Research

Atom Connect →

Domain valuation, trademark screening, and discovery APIs

From Custom pricing

From Live per-domain registration, renewal, and transfer pricing

GoDaddy API →

Domain Registrar API

From Variable per-TLD domain transaction pricing

Dynadot API →

Registrar API for Bulk Investors and Resellers

Email verification and security APIs

MxToolBox →

Email Security & DNS Diagnostic Tools

From $129/month Delivery Center

IP intelligence and reputation APIs

IP2WHOIS →

WHOIS API with IP2Location Integration

From $49/month for 5,000 Domain WHOIS queries

From $99/month for 10,000 requests

Host.io →

Domain Intelligence and Technology Detection API

From $49/month Freelancer plan

Netlas →

Internet-wide scanning, DNS, SSL, and WHOIS datasets

Robtex →

Passive DNS, domain reputation, and infrastructure lookup API

From $19/month Pro plan

From Prepaid credits from $100

Censys →

Internet Intelligence and Attack Surface Platform

From $49 one-time Membership or $69/month Freelancer

Shodan →

Internet Exposure Search for Devices and Services

From $75,000/year Google Threat Intelligence Standard

VirusTotal →

Domain & URL Threat Intelligence

From $29/month for 1,000 queries

ViewDNS →

DNS, WHOIS, and Reverse Lookup Toolkit

Threat and vulnerability intelligence APIs

DomainTools →

Enterprise Domain Intelligence & Threat Research

From $99/month individual membership, web access only

From $5,000/year Automate plan

urlscan.io →

URL scanning, phishing analysis, and brand monitoring API

From $149/month Builder plan

FullHunt →

External attack surface, subdomain, and typo-monitoring API

From $49/month Freelancer plan

Netlas →

Internet-wide scanning, DNS, SSL, and WHOIS datasets

SecurityTrails →

DNS & Domain Intelligence for Security Research

From Contact sales

From Prepaid credits from $100

Censys →

Internet Intelligence and Attack Surface Platform

From $49 one-time Membership or $69/month Freelancer

Shodan →

Internet Exposure Search for Devices and Services

From $75,000/year Google Threat Intelligence Standard

VirusTotal →

Domain & URL Threat Intelligence