# IsValid, free, GET /v0/vat: Business verification API

> EU VAT number validation for all 27 member states with optional real-time VIES verification. Returns country, company name, and validity status.

IsValid's business verification API on its Free plan. It costs $0.00 per 1,000 companies. It returns 2 of the 11 key fields we check: Registered name, Principal address.
In [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt), the best plan from IsValid scores 0.0 out of 100. IsValid ranks 6th of 11 providers.
This plan is free. We rank 821 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/isvalid/free-get-v0-vat
- [Business verification API: the 11 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://isvalid.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `GET https://api.isvalid.dev/v0/vat`
- API key: with the plan, on https://isvalid.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://isvalid.dev/docs/vat?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: IsValid (https://isvalid.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 18%
- Registered name: ✓
- Principal address: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: 76 other calls

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: EU VAT number validation for all 27 member states with optional real-time VIES verification. Returns country, company name, and validity status.

## Data

- Freshness: live
- Countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden
- Keep data: no limit
- Use data: You agree to use the Service strictly within the limits of your chosen subscription plan. [...] You must not attempt to circumvent rate limits through any means, including but not limited to: Creating multiple accounts to aggregate free-tier quotas, Using proxies, VPNs, or other technical measures to bypass rate limiting, Sharing API keys with third parties outside your organization, Reverse engineering or scraping the Service infrastructure [...] Abusive use of the Service is strictly prohibited. [...] if we determine in our sole discretion that you are engaged in: Automated abuse — running bots, scrapers, or scripts that place excessive load on the Service beyond normal API usage patterns, Fraudulent activity — using the Service to validate data for purposes of fraud, identity theft, spam, or phishing, Illegal use — any activity that violates applicable local, national, or international law, Reselling without authorization — offering the Service to third parties as your own product without a written reseller agreement, Security attacks — attempting to probe, scan, or test vulnerabilities of the Service or its underlying infrastructure

## Plan

- Pay: €0
- You get: 100 requests a day
- Enough for: 100 calls a day
- Expires: Rate limits reset at midnight UTC each day

## Rate limit

- Per day: 100
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: value. Optional: countryCode, checkVies
- Method: GET
- Path: /v0/vat

## About the plan

- Plan: Free
- Who can get it: anyone

## The 9 fields the plan's answer can hold

valid, normalized number, country code, country name, EU member state, checked, registered, registered name, registered address

## IsValid's plans (3)

- [IsValid, free, GET /v0/vat](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-vat/llms.txt): $0.00 per 1,000, 18% complete, live
- [IsValid, €9 monthly, Starter, GET /v0/vat](https://datacircle.dev/business-verification-apis/isvalid/9-monthly-starter-get-v0-vat/llms.txt): $0.034 per 1,000, 18% complete, live
- [IsValid, €49 monthly, Pro, GET /v0/vat](https://datacircle.dev/business-verification-apis/isvalid/49-monthly-pro-get-v0-vat/llms.txt): $0.018 per 1,000, 18% complete, live

## IsValid's calls for this API (10)

- `GET /v0/au/abn`: [IsValid, free, GET /v0/au/abn](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-au-abn/llms.txt)
- `GET /v0/pl/ceidg`: [IsValid, free, GET /v0/pl/ceidg](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-pl-ceidg/llms.txt)
- `GET /v0/br/cnpj`: [IsValid, free, GET /v0/br/cnpj](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-br-cnpj/llms.txt)
- `GET /v0/duns`: [IsValid, free, GET /v0/duns](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-duns/llms.txt)
- `GET /v0/eori`: [IsValid, free, GET /v0/eori](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-eori/llms.txt)
- `GET /v0/pl/krs`: [IsValid, free, GET /v0/pl/krs](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-pl-krs/llms.txt)
- `GET /v0/lei`: [IsValid, free, GET /v0/lei](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-lei/llms.txt)
- `GET /v0/lei/search`: [IsValid, free, GET /v0/lei/search](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-lei-search/llms.txt)
- `GET /v0/pl/regon`: [IsValid, free, GET /v0/pl/regon](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-pl-regon/llms.txt)
- `GET /v0/vat`: [IsValid, free, GET /v0/vat](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-vat/llms.txt)

## IsValid's APIs (3)

- [IsValid: email verification API pricing, 3 plans](https://datacircle.dev/validate-email-apis/isvalid/free/llms.txt)
- [IsValid: phone validation API pricing, 3 plans](https://datacircle.dev/validate-phone-apis/isvalid/free/llms.txt)
- [IsValid: business verification API pricing, 3 plans, GET /v0/vat](https://datacircle.dev/business-verification-apis/isvalid/free-get-v0-vat/llms.txt)

## IsValid: business verification API alternatives

- [NeuralVerge, $50 monthly, Base, POST /functions/v1/run-lei-lookup-companies-search](https://datacircle.dev/business-verification-apis/neuralverge/50-monthly-base-post-functions-v1-run-lei-lookup-companies-search/llms.txt): $1.00 per 1,000, 55% complete, live
- [Scavio, $4,788 yearly](https://datacircle.dev/business-verification-apis/scavio/4788-yearly/llms.txt): $1.995 per 1,000, 45% complete, live
- [Parse, $1,000 monthly, Company, GET /scraper/8ceea6f9-34d2-4d7f-adf1-fc7bdd90b476/search_entities](https://datacircle.dev/business-verification-apis/parse/1000-monthly-company-get-scraper-8ceea6f9-34d2-4d7f-adf1-fc7bdd90b476-search-entities/llms.txt): $10.00 per 1,000, 55% complete, live
- [OpenSOSData, $500 pack, Enterprise, POST /v1/lookup](https://datacircle.dev/business-verification-apis/opensosdata/500-pack-enterprise-post-v1-lookup/llms.txt): $31.40 per 1,000, 100% 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 2026-11-05.

- https://isvalid.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://isvalid.dev/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://isvalid.dev/docs/vat?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://isvalid.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://isvalid.dev/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing