# Kausate, top-up, Self-serve, POST /v2/companies/search/sync: Business verification API

> Search for companies synchronously. Blocks for up to 300 seconds.

Kausate's business verification API on its Self-serve plan. It returns 4 of the 11 key fields we check: Registered name, Entity number, Status, Principal address.
We rank 654 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 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. Scoris's €19 pack costs less to start than Scoris's €99 monthly plan.
[INSEE](https://datacircle.dev/business-verification-apis/insee/free/llms.txt), [CZ Agents](https://datacircle.dev/business-verification-apis/cz-agents/free/llms.txt) and [ARES](https://datacircle.dev/business-verification-apis/ares/free/llms.txt) are the best business verification API providers in our benchmark.

- This page: https://datacircle.dev/business-verification-apis/kausate/top-up-self-serve-post-v2-companies-search-sync
- [Best business verification API in 2026: pricing compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://www.kausate.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://api.kausate.com/v2/companies/search/sync`
- API key: with the plan, on https://www.kausate.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://docs.kausate.com/api-reference/search/liveSearchCompaniesSync?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: Kausate (https://www.kausate.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-01

## In the answer

- Completeness: 36%
- Registered name: ✓
- Entity number: ✓
- Status: ✓
- Principal address: ✓

## Price

- Billing: pay first

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Search for companies synchronously. Blocks for up to 300 seconds.

## Data

- Freshness: live
- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: companyName, companyNumber, advancedQuery, jurisdictionCode, customerReference, metadata, batch, X-Customer-Id header
- Method: POST
- Path: /v2/companies/search/sync

## About the plan

- Plan: Self-serve
- Who can get it: anyone who creates an account at kausate.com/signup

## The 26 fields the plan's answer can hold

order ID, customer reference, metadata, order status, request time, response time, result type, Kausate ID, jurisdiction code, entity name, entity number, identifier type, identifier source, identifier jurisdiction, identifier description, address type, address source, original address, road, house number, postcode, city, country code, status, normalized status, active

## Kausate's plans (2)

- [Kausate, top-up, Self-serve, POST /v2/companies/search/sync](https://datacircle.dev/business-verification-apis/kausate/top-up-self-serve-post-v2-companies-search-sync/llms.txt): 36% complete, live
- [Kausate, contact us, Enterprise, POST /v2/companies/search/sync](https://datacircle.dev/business-verification-apis/kausate/contact-us-enterprise-post-v2-companies-search-sync/llms.txt): 36% complete, live

## Kausate's calls for this API (2)

- `POST /v2/companies/search`: [Kausate, top-up, Self-serve, POST /v2/companies/search](https://datacircle.dev/business-verification-apis/kausate/top-up-self-serve-post-v2-companies-search/llms.txt)
- `POST /v2/companies/search/sync`: [Kausate, top-up, Self-serve, POST /v2/companies/search/sync](https://datacircle.dev/business-verification-apis/kausate/top-up-self-serve-post-v2-companies-search-sync/llms.txt)

## Kausate's APIs (2)

- [Kausate: company enrichment API pricing, 2 plans, POST /v2/companies/report](https://datacircle.dev/company-enrichment-apis/kausate/top-up-self-serve-post-v2-companies-report/llms.txt)
- [Kausate: company enrichment API pricing, 2 plans, POST /v2/companies/report/sync](https://datacircle.dev/company-enrichment-apis/kausate/top-up-self-serve-post-v2-companies-report-sync/llms.txt)
- [Kausate: business verification API pricing, 2 plans, POST /v2/companies/search/sync](https://datacircle.dev/business-verification-apis/kausate/top-up-self-serve-post-v2-companies-search-sync/llms.txt)

## Kausate: business verification API alternatives

- [Shufti Pro, top-up from $100](https://datacircle.dev/business-verification-apis/shufti-pro/top-up-from-100/llms.txt): 82% 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 2026-11-01.

- https://docs.kausate.com/api-reference/search/liveSearchCompanies?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/api-reference/search/liveSearchCompaniesSync?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/features/errors?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/features/sandbox?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/getting-started?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/jurisdictions?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/jurisdictions/us-de?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.kausate.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.kausate.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing