# Fonoa, contact us, Contact sales, POST /lookup/v2/single-searches: Business verification API

> No tax ID on hand? Search by name and Fonoa Validate returns the registered tax ID and associated details.

Fonoa's Contact sales plan lets you call the business verification API. We check each provider's docs for 11 fields. Fonoa's docs list 6: Registered name, Entity number, Tax ID, Status, Formation date, Principal address.
We haven't run Fonoa through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
Fonoa gives this plan's price on request. We rank 1,422 plans for business verification APIs by price. Half the plans cost $7.895 or less per 1,000 companies.
[CharityAPI's $15 monthly plan](https://datacircle.dev/business-verification-apis/charityapi/15-monthly-paid-get-api-organizations-ein/llms.txt) is the cheapest paid plan per 1,000 companies. CharityAPI's plan covers companies in the United States only. CharityAPI's $15 monthly plan charges nothing per call. You get as many companies as CharityAPI's rate limit allows. [ApiZero's CNY 399 yearly plan](https://datacircle.dev/business-verification-apis/apizero/cny-399-yearly-diamond-membership-get-api-company-search/llms.txt) costs the least for 10,000 companies a month: about $4.97.
[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 more up front than CharityAPI's $15 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 the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-lookup-v2-single-searches
- [Business verification API: the 14 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://www.fonoa.com/contact-sales?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://api.fonoa.com/lookup/v2/single-searches`
- API key: with the plan, on https://www.fonoa.com/contact-sales?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://docs.fonoa.com/reference/requesttinsearch?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: Fonoa (https://www.fonoa.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-09

## In the answer

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

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: No tax ID on hand? Search by name and Fonoa Validate returns the registered tax ID and associated details.

## Data

- Countries: Argentina, Australia, Belgium, Bulgaria, Brazil, Canada, Switzerland, Chile, Colombia, Germany, Denmark, Dominican Republic, Ecuador, Estonia, Spain, Finland, France, United Kingdom, Greece, Croatia, Hungary, India, Italy, Lithuania, Latvia, Mexico, Norway, New Zealand, Peru, Poland, Portugal, Romania, Sweden, Singapore, Slovenia, Slovakia, Thailand, Vietnam, South Africa
- Keep data: no limit
- Use data: 2.2. [...] we hereby grant to you a non-exclusive, non-transferable right to use the Services solely for your internal business operations. 2.3. You shall not, and shall not permit the Authorized Users to: a) [...] i) attempt to copy, modify, duplicate, create derivative works from, frame, mirror, republish, download, display, transmit, or distribute all or any portion of the Software in any form or media or by any means, or ii) attempt to reverse compile, disassemble, reverse engineer or otherwise reduce to human-perceivable form all or any part of the Software, or b) access all or any part of the Services in order to build a product or service which competes with the Services, or c) use the Services to provide services to third parties, except where explicitly indicated on the Site, or d) license, sell, rent, lease, transfer, assign, distribute, display, disclose, or otherwise commercially exploit, or otherwise make the Services available to any third party except you or the Authorized Users, or e) attempt to obtain, or assist third parties in obtaining, access to the Services and/or Documentation, other than as provided under these Terms of Service. [...] you may not access the Services if you are our direct competitor, except with our prior written consent. In addition, you may not access the Services for purposes of monitoring their availability, performance or functionality, or for any other benchmarking or competitive purposes.

## Rate limit

- Per second: 100
- Batch: 1

## Speed

- Answer: by polling

## The call

- You send: country_iso_code, query. Optional: additional_parameters.address, external_id
- Method: POST
- Path: /lookup/v2/single-searches

## About the plan

- Plan: Contact sales
- Who can get it: businesses that contact Fonoa for an API subscription key, its terms bar a direct competitor of Fonoa

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

search ID, query, country code, requested at, external ID, result ID, registered name, tax registered, tax ID, registration type, business status, legal entity type, registration date, deregistration date, address, is business, name similarity score, address similarity score, business registration number, France SIRET, Italy codice fiscale, Italy PEC address, Brazil fantasy name, Colombia check digit, Colombia large taxpayer, Colombia TIN without check digit

## Fonoa's plans (1)

- [Fonoa, contact us, Contact sales, POST /lookup/v2/single-searches](https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-lookup-v2-single-searches/llms.txt): 55% complete

## Fonoa's calls (4)

- `POST /instant-lookup/v1/find`: [Fonoa, contact us, Contact sales, POST /instant-lookup/v1/find](https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-instant-lookup-v1-find/llms.txt)
- `POST /lookup/v2/batch-validations`: [Fonoa, contact us, Contact sales, POST /lookup/v2/batch-validations](https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-lookup-v2-batch-validations/llms.txt)
- `POST /lookup/v2/single-searches`: [Fonoa, contact us, Contact sales, POST /lookup/v2/single-searches](https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-lookup-v2-single-searches/llms.txt)
- `POST /lookup/v2/single-validations`: [Fonoa, contact us, Contact sales, POST /lookup/v2/single-validations](https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-lookup-v2-single-validations/llms.txt)

## Fonoa's APIs (1)

- [Fonoa: business verification API pricing, 1 plan, POST /lookup/v2/single-searches](https://datacircle.dev/business-verification-apis/fonoa/contact-us-contact-sales-post-lookup-v2-single-searches/llms.txt)

## Fonoa: business verification API alternatives

- [NeuralVerge, contact us, Custom, POST /functions/v1/run-ar-companies-search](https://datacircle.dev/business-verification-apis/neuralverge/contact-us-custom-post-functions-v1-run-ar-companies-search/llms.txt): 55% complete
- [CBEAPI, contact us](https://datacircle.dev/business-verification-apis/cbeapi/contact-us/llms.txt): 55% complete, 1 day
- [CompanyPulse, contact us](https://datacircle.dev/business-verification-apis/companypulse/contact-us/llms.txt): 55% complete
- [Registrum, contact us](https://datacircle.dev/business-verification-apis/registrum/contact-us/llms.txt): 55% complete, 1 hour

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.

- https://docs.fonoa.com/reference/api-restrictions.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.fonoa.com/reference/authentication.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.fonoa.com/reference/environments.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.fonoa.com/reference/gettinsearchresult.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.fonoa.com/reference/requesttinsearch.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.fonoa.com/contact-sales?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.fonoa.com/platform/validate?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.fonoa.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing