# ZaChestnyiBiznes API, free: Business verification API

> Получение списка компаний по строке запроса.

ZaChestnyiBiznes API's business verification API on its Тестовый доступ plan. It costs $0.00 per 1,000 companies. It returns 6 of the 11 key fields we check: Entity number, Tax ID, Entity type, Status, Formation date, Principal address.
We haven't run ZaChestnyiBiznes API through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
This plan is free. We rank 793 plans for business verification APIs by price. Half the plans cost $7.895 per 1,000 companies or less.
[EuroValidate's €149 monthly plan](https://datacircle.dev/business-verification-apis/eurovalidate/149-monthly-scale-post-v1-validate/llms.txt) is the cheapest paid plan per 1,000 companies: $0.017. EuroValidate's plan covers companies in 31 countries only.
[Scoris's €19 pack](https://datacircle.dev/business-verification-apis/scoris/19-pack/llms.txt) covers any number of companies in 8 countries only. Scoris's €19 pack costs less up front than EuroValidate's €149 monthly plan.
[GovFiles](https://datacircle.dev/business-verification-apis/govfiles/top-up/llms.txt), [Didit](https://datacircle.dev/business-verification-apis/didit/top-up-from-50/llms.txt) and [CompanyData.com](https://datacircle.dev/business-verification-apis/companydata-com/249-monthly/llms.txt) are the best business verification API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/business-verification-apis/zachestnyibiznes-api/free
- [Business verification API: 11 providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://zachestnyibiznesapi.ru/docs/basic_buy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `GET https://zachestnyibiznesapi.ru/paid/data/search`
- API key: with the plan, on https://zachestnyibiznesapi.ru/docs/basic_buy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://zachestnyibiznesapi.ru/docs/basic_method?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: ZaChestnyiBiznes API (https://zachestnyibiznesapi.ru?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 55%
- Entity number: ✓
- Tax ID: ✓
- Entity type: ✓
- Status: ✓
- Formation date: ✓
- Principal address: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: 48 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Получение списка компаний по строке запроса.

## Data

- Countries: Russia
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: string. Optional: filters, page
- Method: GET
- Path: /paid/data/search

## About the plan

- Plan: Тестовый доступ
- Who can get it: anyone who registers in the portal's personal account, sends a request for test access and confirms it when the portal's managers reply, issued once

## The 13 fields the plan's answer can hold

total results, entity ID, entity type, short name, full name, status, INN, KPP, formation date, address, OKVED code, OKVED description, director

## ZaChestnyiBiznes API's plans (2)

- [ZaChestnyiBiznes API, free](https://datacircle.dev/business-verification-apis/zachestnyibiznes-api/free/llms.txt): $0.00 per 1,000, 55% complete
- [ZaChestnyiBiznes API, contact us](https://datacircle.dev/business-verification-apis/zachestnyibiznes-api/contact-us/llms.txt): 55% complete

## ZaChestnyiBiznes API's calls for this API (1)

- `GET /paid/data/search`: [ZaChestnyiBiznes API, free](https://datacircle.dev/business-verification-apis/zachestnyibiznes-api/free/llms.txt)

## ZaChestnyiBiznes API's APIs (2)

- [ZaChestnyiBiznes API: business verification API pricing, 2 plans](https://datacircle.dev/business-verification-apis/zachestnyibiznes-api/free/llms.txt)
- [ZaChestnyiBiznes API: company enrichment API pricing, 2 plans](https://datacircle.dev/company-enrichment-apis/zachestnyibiznes-api/free/llms.txt)

## ZaChestnyiBiznes API: business verification API alternatives

- [INSEE, free](https://datacircle.dev/business-verification-apis/insee/free/llms.txt): $0.00 per 1,000, 45% complete, 24 hours
- [Hlidac statu, free, Zdarma, GET /api/v2/firmy/GetDetailInfo](https://datacircle.dev/business-verification-apis/hlidac-statu/free-zdarma-get-api-v2-firmy-getdetailinfo/llms.txt): $0.00 per 1,000, 27% complete
- [Scoris, free](https://datacircle.dev/business-verification-apis/scoris/free/llms.txt): $0.00 per 1,000, 18% complete, 1 week
- [Pushbuild, free, POST /uk-companies-house/run](https://datacircle.dev/business-verification-apis/pushbuild/free-post-uk-companies-house-run/llms.txt): $0.00 per 1,000, 64% complete
- [SAM.gov, free, Non-federal user with no Role in SAM.gov](https://datacircle.dev/business-verification-apis/sam-gov/free-non-federal-user-with-no-role-in-sam-gov/llms.txt): $0.00 per 1,000, 45% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

- https://zachestnyibiznesapi.ru/?oldDocs=1&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://zachestnyibiznesapi.ru/docs/basic_buy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://zachestnyibiznesapi.ru/docs/basic_description?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://zachestnyibiznesapi.ru/docs/basic_method?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://zachestnyibiznesapi.ru/docs/quick_start?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://zachestnyibiznesapi.ru/docs/tariffication?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing