API Documentation

Domain Similar API

Find similar companies and competitor domains based on any website domain via our RESTful API.

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Domain Similar API
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Real API data — no signup required

cURL 
curl --request GET \
  --url 'https://api.tomba.io/v1/domain-similar?domain=stripe.com' \
  --header 'X-Tomba-Key: ta_xxxxxxxxxxxx' \
  --header 'X-Tomba-Secret: ts_xxxxxxxxxxxx'
200400424500
{
  "data": [
    {
      "domain": "square.com",
      "company": "Square",
      "industry": "Financial Technology",
      "headcount": "5001-10000"
    },
    {
      "domain": "adyen.com",
      "company": "Adyen",
      "industry": "Payment Processing",
      "headcount": "1001-5000"
    }
  ]
}
CapterraCapterra
4.7/5
G2G2
4.7/5
Chrome Web StoreChrome Web Store
4.7/5

Based on verified reviews

The Most Reliable Domain Similar API API

Tomba has the largest B2B email crawler on the web. We process billions of pages monthly so you always get the freshest, most accurate data.

2B+
Pages crawled monthly
450M+
Verified B2B emails
70M+
Domains indexed
#1
Ranked in benchmark
81%
Email coverage
<5%
Bounce rate
<200ms
API response
99.9%
Uptime SLA
42M+
Tech-indexed sites
150K+
Professionals

Independent 5,000-Lead Benchmark

Same input file, same conditions, every provider. Raw results, no spin.

View raw data Data updates Robots policy
1Tomba.ioTomba.io
4,015
2AnymailfinderAnymailfinder
3,875
3FindymailFindymail
3,757
4GetProspectGetProspect
3,096
5SkrappSkrapp
2,142
6HunterHunter
1,882
7VoilaNorbertVoilaNorbert
1,800
8SnovSnov
1,007
9ProspeoProspeo
846

More Data, Less Money — No One Comes Close

Every plan includes free verification credits, phone data, and credits that never expire.

Basic
$49 /mo
5,000 total credits
2,500 finder + 2,500 Free Verification
Most Popular
Growth
$89 /mo
10,000 total credits
5,000 finder + 5,000 Free Verification
Pro
$199 /mo
40,000 total credits
20,000 finder + 20,000 Free Verification
$0 for invalid emails
Monthly or one-time
Phone data included
See Full Pricing

Integrate Domain Similar API in Your Language

Install Tomba in your language. 10 official SDKs, all open-source on GitHub.

Python
pip install tomba
Node.js
npm install tomba
PHP
composer require tomba-io/php
Ruby
gem install tomba
Go
go get github.com/tomba-io/go
Java
Maven / Gradle
Dart
dart pub add tomba
Lua
luarocks install tomba
R
install.packages("tomba")
Elixir
{:tomba, "~> 1.0"}
Full API documentation View on GitHub MCP Server

Domain Similar API API Features

Similar Domains

Find companies with similar products, services, and target markets to any given domain.

Company Data

Each similar domain includes company name, industry, size, and location.

Website Info

Domain URL, description, and technology overlap for each match.

Relevance Score

Similarity scoring based on industry, content, technology, and audience overlap.

Competitor Discovery

Discover direct competitors and adjacent companies in the same market.

Bulk Available

Find similar domains for multiple queries via Bulk Similar Domain API.

Account-Based Marketing

Build lookalike audiences by finding companies similar to your best customers.

Real-Time Results

Fresh similarity analysis from our continuously updated 70M+ domain database.

Related API Endpoints

Domain Search/v1/domain-search
GET
Email Finder/v1/email-finder
GET
Email Verifier/v1/email-verifier
GET
Author Finder/v1/author-finder
GET
Email Enrichment/v1/email-enrichment
GET
LinkedIn Finder/v1/linkedin-finder
GET
Phone Finder/v1/phone-finder
GET
Phone Validator/v1/phone-validator
GET
Company Enrichment/v1/company-enrichment
GET

Start using the Domain Similar API API

Get your API key and start making requests in minutes. 25 free credits — no credit card required.

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FAQs

Domain Similar API API Questions

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