# API-FNS, free: Business verification API

> Позволяет получить список компаний по указанному запросу.

API-FNS's business verification API on its Старт plan. It costs $0.00 per 1,000 companies. It returns 7 of the 11 key fields we check: Registered name, Entity number, Tax ID, Entity type, Status, Formation date, Principal address.
We rank 683 plans by price. [Scoris's €99 monthly plan](https://datacircle.dev/business-verification-apis/scoris/99-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: as little as $0.021. Scoris's €99 monthly plan covers companies in 8 countries only. Scoris's €99 monthly plan covers up to 5,184,000 companies a month at no extra cost.
[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 Scoris's €99 monthly plan.
[GovFiles](https://datacircle.dev/business-verification-apis/govfiles/top-up/llms.txt), [CompanyData.com](https://datacircle.dev/business-verification-apis/companydata-com/249-monthly/llms.txt) and [Didit](https://datacircle.dev/business-verification-apis/didit/top-up-from-50/llms.txt) are the best business verification API providers in our benchmark for companies in any country.

- This page: https://datacircle.dev/business-verification-apis/api-fns/free
- [Best business verification API in 2026: providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://api-fns.ru
- Request: `GET https://api-fns.ru/api/search`
- API key: with the plan, on https://api-fns.ru
- Its API docs: https://api-fns.ru/api_help
- Sold by: API-FNS (https://api-fns.ru)
- Checked: 2026-11-02

## In the answer

- Completeness: 64%
- Registered name: ✓
- 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: egr · check · changes · bo

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Позволяет получить список компаний по указанному запросу.

## Data

- Countries: Russia
- Keep data: no limit
- Use data: Пользователь вправе использовать (в том числе повторно) данные сайта свободно, без ограничения территории использования, в том числе имеет право копировать, публиковать, распространять эти данные, видоизменять или объединять их с другой информацией, также разрешено использовать данные в коммерческих целях, использовать для создания программ для ЭВМ и приложений. [...] При использовании данных Сервиса Пользователь обязан соблюдать следующие условия: использовать данные только в законных целях, убедиться, что он не искажает данные при их использовании, сохранять ссылку на источник информации при использовании данных и, по возможности, дать ссылку на соглашение, в соответствии с которым используются данные, [...] использовать данные в соответствии с параметрами приобретенного тарифного плана.

## Plan

- Pay: $0
- You get: 100 requests
- Enough for: 100 calls
- Expires: 1 year

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: q. Optional: page, filter
- Method: GET
- Path: /api/search

## About the plan

- Plan: Старт
- Who can get it: anyone who registers with real details (full name, phone, organization, email)

## The 16 fields the plan's answer can hold

company type, tax number, registration number, name, short name, individual entrepreneur name, registration number issue date, registration date, status, termination date, address, main activity, matched on, next page, filter, total results

## API-FNS's plans (5)

- [API-FNS, free](https://datacircle.dev/business-verification-apis/api-fns/free/llms.txt): $0.00 per 1,000, 64% complete
- [API-FNS, ₽10,000 yearly](https://datacircle.dev/business-verification-apis/api-fns/10000-yearly/llms.txt): 64% complete
- [API-FNS, ₽20,000 yearly](https://datacircle.dev/business-verification-apis/api-fns/20000-yearly/llms.txt): 64% complete
- [API-FNS, ₽40,000 yearly](https://datacircle.dev/business-verification-apis/api-fns/40000-yearly/llms.txt): 64% complete
- [API-FNS, contact us](https://datacircle.dev/business-verification-apis/api-fns/contact-us/llms.txt): $1.194 per 1,000, 64% complete

## API-FNS's calls for this API (1)

- `GET /api/search`: [API-FNS, free](https://datacircle.dev/business-verification-apis/api-fns/free/llms.txt)

## API-FNS's APIs (2)

- [API-FNS: business verification API pricing, 5 plans](https://datacircle.dev/business-verification-apis/api-fns/free/llms.txt)
- [API-FNS: company enrichment API pricing, 6 plans, GET /api/egr](https://datacircle.dev/company-enrichment-apis/api-fns/free-get-api-egr/llms.txt)
- [API-FNS: company enrichment API pricing, 6 plans, GET /api/multinfo](https://datacircle.dev/company-enrichment-apis/api-fns/free-get-api-multinfo/llms.txt)

## API-FNS: business verification API alternatives

- [Infyner, ₹10,000 pack](https://datacircle.dev/business-verification-apis/infyner/10000-pack/llms.txt): $1.053 per 1,000, 27% complete, stored
- [Societe.com, €1,990 pack](https://datacircle.dev/business-verification-apis/societe-com/1990-pack/llms.txt): $1.12 per 1,000, 18% complete, 1 day
- [OFData, top-up from ₽25,000](https://datacircle.dev/business-verification-apis/ofdata/top-up-from-25000/llms.txt): $1.194 per 1,000, 27% complete
- [Anysite, $549 monthly, Pro, POST /api/acra/companies/search](https://datacircle.dev/business-verification-apis/anysite/549-monthly-pro-post-api-acra-companies-search/llms.txt): $1.292 per 1,000, 64% 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 2026-11-02.

- https://api-fns.ru
- https://api-fns.ru/api_help
- https://api-fns.ru/user?accept&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api-fns.ru/user?register&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing