# APITier, free: Business verification API

> Deep company due diligence in a single API call. Verify any UK business against Companies House in real time — registered address, company status, director list, and VAT cross-check. Get a risk score (low / medium / high) ready for your CRM or onboarding flow.

APITier's Free plan for the business verification API costs $0.00 per 1,000 companies. We check each provider's docs for 11 fields. APITier's docs list 4: Status, Formation date, Principal address, Officers.
We haven't run APITier through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
This plan is free. We rank 1,422 plans for business verification APIs by price. Half the plans cost $7.895 or less per 1,000 companies. [See the best free business verification API plan.](https://datacircle.dev/best-business-verification-api.txt)
[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/apitier/free
- [Business verification API: the 14 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://www.apitier.com/pricing-plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: Docs behind sign-up
- API key: with the plan, on https://www.apitier.com/pricing-plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://docs.apitier.com/docs/lead-agent-api/verify?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: APITier (https://www.apitier.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 36%
- Status: ✓
- Formation date: ✓
- Principal address: ✓
- Officers: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Email Validation · Phone Validation · VAT Number Validation · India Pincode Lookup · QR Code Generation · Barcode Generation · Data Format Conversion · Web Screenshot (Conversion) · Checkout Signals · Address Agent — Validate · Address Agent — Enrich · Lead Agent — Validate · Director Search Agent · KYC Agent — Onboard · Company Lookup · PSC Lookup · Web Scrape · Web to Text

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Deep company due diligence in a single API call. Verify any UK business against Companies House in real time — registered address, company status, director list, and VAT cross-check. Get a risk score (low / medium / high) ready for your CRM or onboarding flow.

## Data

- Freshness: live
- Countries: United Kingdom
- Keep data: no limit
- Use data: You may use the services only in accordance with the documentation, applicable rate limits, plan restrictions, and technical requirements published by APITier. You must not misuse the services, attempt to bypass quotas or authentication controls, probe or scan for vulnerabilities, interfere with service availability, resell the services except as expressly permitted, or use the services in a manner that violates law, infringes rights, or exposes APITier or its suppliers to regulatory or security risk. [...] You must not use service outputs to create, compile, or maintain a separate address, postcode, or geographic database, product, or service that is sold, licensed, distributed, or otherwise made available to any third party.

## Plan

- Pay: $0
- You get: 1,000 credits a month
- Enough for: 20 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: Docs behind sign-up

## About the plan

- Plan: Free
- Who can get it: anyone

## The 6 fields the plan's answer can hold

company status, registered address, incorporation date, directors, VAT cross-check, risk score

## APITier's plans (5)

- [APITier, free](https://datacircle.dev/business-verification-apis/apitier/free/llms.txt): $0.00 per 1,000, 36% complete, live
- [APITier, $9 monthly](https://datacircle.dev/business-verification-apis/apitier/9-monthly/llms.txt): $30.00 per 1,000, 36% complete, live
- [APITier, $29 monthly](https://datacircle.dev/business-verification-apis/apitier/29-monthly/llms.txt): $29.00 per 1,000, 36% complete, live
- [APITier, $79 monthly](https://datacircle.dev/business-verification-apis/apitier/79-monthly/llms.txt): $26.333 per 1,000, 36% complete, live
- [APITier, $199 monthly](https://datacircle.dev/business-verification-apis/apitier/199-monthly/llms.txt): $22.111 per 1,000, 36% complete, live

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

- Docs behind sign-up: [APITier, free](https://datacircle.dev/business-verification-apis/apitier/free/llms.txt)

## APITier's APIs (4)

- [APITier: business verification API pricing, 5 plans](https://datacircle.dev/business-verification-apis/apitier/free/llms.txt)
- [APITier: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/apitier/free/llms.txt)
- [APITier: phone validation API pricing, 5 plans](https://datacircle.dev/validate-phone-apis/apitier/free/llms.txt)
- [APITier: web scraping API pricing, 5 plans, Web Scrape](https://datacircle.dev/web-scraping-apis/apitier/free-web-scrape/llms.txt)
- [APITier: web scraping API pricing, 5 plans, Web to Text](https://datacircle.dev/web-scraping-apis/apitier/free-web-to-text/llms.txt)

## APITier: business verification API alternatives

- [W System EU Business Data, €19 monthly, Starter, POST /kyb/check](https://datacircle.dev/business-verification-apis/w-system-eu-business-data/19-monthly-starter-post-kyb-check/llms.txt): $21.381 per 1,000, 55% complete, live (sanctions status, sanctions top score, sanctions matches, sanctions lists date: 1 day)
- [Eko, top-up, Pay per use, POST /tools/kyc/gstin-with-pan](https://datacircle.dev/business-verification-apis/eko/top-up-pay-per-use-post-tools-kyc-gstin-with-pan/llms.txt): $21.481 per 1,000, 0% complete, live
- [TusFacturasAPP, ARS 243,800 monthly](https://datacircle.dev/business-verification-apis/tusfacturasapp/ars-243800-monthly/llms.txt): $22.944 per 1,000, 36% complete, live
- [CoreSoft, COP 365,000 monthly](https://datacircle.dev/business-verification-apis/coresoft/cop-365000-monthly/llms.txt): $23.025 per 1,000, 55% 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 2026-11-08.

- https://docs.apitier.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://terms.apitier.com/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.apitier.com/api-catalogue?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.apitier.com/api-catalogue/business-verify-agent?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.apitier.com/api-catalogue/lead-agent-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.apitier.com/pricing-plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing