# Dataprovider.com, contact us: Similar companies API

> Enter a single website and instantly find lookalike domains with vector search. This language-independent approach uncovers relevant prospects and competitors you’d otherwise miss.

Dataprovider.com's similar companies API on its API plan. It returns 5 of the 13 key fields we check: Description, Industry and type, Images, Headquarters, Domain.
We haven't run Dataprovider.com through [our similar companies API benchmark](https://datacircle.dev/best-similar-companies-api.txt) yet.
Dataprovider.com gives this plan's price on request. We rank 119 plans for similar companies APIs by price. Half the plans cost $1.20 per 1,000 companies or less.
[PublicWWW's $499 monthly plan](https://datacircle.dev/similar-company-apis/publicwww/499-monthly/llms.txt) costs the least per 1,000 companies: $0.000055. PublicWWW charges for each page of results. We count 1,000,000 companies on each page to get the $0.000055 price.
[ZoomInfo's $45 pack](https://datacircle.dev/similar-company-apis/zoominfo/45-pack/llms.txt) covers any number of companies. ZoomInfo's $45 pack costs less up front than PublicWWW's $499 monthly plan.
[LeadMagic](https://datacircle.dev/similar-company-apis/leadmagic/499-monthly-professional-post-v3-companies-lookalike/llms.txt), [Tomba](https://datacircle.dev/similar-company-apis/tomba/pay-as-you-go/llms.txt) and [Social Fetch](https://datacircle.dev/similar-company-apis/social-fetch/14-pack/llms.txt) are the best similar companies API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/similar-company-apis/dataprovider-com/contact-us
- [Similar companies API: 9 providers compared](https://datacircle.dev/best-similar-companies-api.txt)
- Get it: https://www.dataprovider.com/contact/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- Request: `POST https://api.dataprovider.com/v2/similar-websites/{hostname}`
- API key: with the plan, on https://www.dataprovider.com/contact/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- Its API docs: https://api.dataprovider.com/v2/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing#tag/Similar-Websites
- Sold by: Dataprovider.com (https://www.dataprovider.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 38%
- Description: ✓
- Industry and type: ✓
- Images: ✓
- Headquarters: ✓
- Domain: ✓

## Price

- Per: result
- Billing: contact

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Enter a single website and instantly find lookalike domains with vector search. This language-independent approach uncovers relevant prospects and competitors you’d otherwise miss.

## Data

- Freshness: 1 month
- Countries: Worldwide
- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Per second: 2
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: hostname. Optional: offset, limit, country, region, city, realtime, fields
- Method: POST
- Path: /similar-websites/{hostname}

## About the plan

- Plan: API
- Who can get it: anyone who contacts sales

## The 31 fields the plan's answer can hold

hostname, domain, company name, address, city, region, ZIP code, country, continent, headquarter, chamber of commerce number, tax number, DUNS available, business, business model, category, description, title, keywords, language, logo, SIC code, SIC division, SIC major group, NAICS code, email addresses, activity, company quality, website age, date added, total results

## Dataprovider.com's plans (1)

- [Dataprovider.com, contact us](https://datacircle.dev/similar-company-apis/dataprovider-com/contact-us/llms.txt): 38% complete, 1 month

## Dataprovider.com's calls for this API (1)

- `POST /similar-websites/{hostname}`: [Dataprovider.com, contact us](https://datacircle.dev/similar-company-apis/dataprovider-com/contact-us/llms.txt)

## Dataprovider.com's APIs (5)

- [Dataprovider.com: company discovery API pricing, 1 plan](https://datacircle.dev/company-discovery-apis/dataprovider-com/contact-us/llms.txt)
- [Dataprovider.com: similar companies API pricing, 1 plan](https://datacircle.dev/similar-company-apis/dataprovider-com/contact-us/llms.txt)
- [Dataprovider.com: tech stack API pricing, 1 plan](https://datacircle.dev/company-technology-apis/dataprovider-com/contact-us/llms.txt)
- [Dataprovider.com: company enrichment API pricing, 1 plan, POST /kyc/enrich](https://datacircle.dev/company-enrichment-apis/dataprovider-com/contact-us-api-post-kyc-enrich/llms.txt)
- [Dataprovider.com: company enrichment API pricing, 1 plan, POST /kyc/enrich/batch](https://datacircle.dev/company-enrichment-apis/dataprovider-com/contact-us-api-post-kyc-enrich-batch/llms.txt)
- [Dataprovider.com: company enrichment API pricing, 1 plan, POST /search-engine/query](https://datacircle.dev/company-enrichment-apis/dataprovider-com/contact-us-api-post-search-engine-query/llms.txt)
- [Dataprovider.com: backlink API pricing, 1 plan, GET /links/incoming/anchor-texts](https://datacircle.dev/backlink-apis/dataprovider-com/contact-us-api-get-links-incoming-anchor-texts/llms.txt)
- [Dataprovider.com: backlink API pricing, 1 plan, GET /links/incoming/domains/{domain}](https://datacircle.dev/backlink-apis/dataprovider-com/contact-us-api-get-links-incoming-domains-domain/llms.txt)
- [Dataprovider.com: backlink API pricing, 1 plan, GET /links/incoming/hostnames/{hostname}](https://datacircle.dev/backlink-apis/dataprovider-com/contact-us-api-get-links-incoming-hostnames-hostname/llms.txt)

## Dataprovider.com: similar companies API alternatives

- [Social Fetch, contact us](https://datacircle.dev/similar-company-apis/social-fetch/contact-us/llms.txt): 46% complete, live
- [ZenRows, contact us, Enterprise, GET /v1/](https://datacircle.dev/similar-company-apis/zenrows/contact-us-enterprise-get-v1/llms.txt): 23% complete, live
- [Bytemine, contact us](https://datacircle.dev/similar-company-apis/bytemine/contact-us/llms.txt): 38% complete, 1 day
- [gtm-api.com, contact us](https://datacircle.dev/similar-company-apis/gtm-api-com/contact-us/llms.txt): 31% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://api.dataprovider.com/v2/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://www.dataprovider.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://www.dataprovider.com/contact/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://www.dataprovider.com/data-access/search-engine/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing
- https://www.dataprovider.com/our-data/business/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=similar-companies-api-pricing