# Ambolt, free call a day, GET /v1/entity-resolve: Business verification API

> Resolve a company name, website domain, registry number, LEI or VAT number to its official legal entity: registry, registry number, legal form, status, address, industry codes, size where published and LEI. Searches national registers (Norway, Finland, Czechia, Slovakia, France, UK, Latvia, Poland by KRS number) and GLEIF, scores the match and links every record to its source. Company-level only: no officers, no sole traders.

Ambolt's Free call a day plan for the business verification API costs $0.00 per 1,000 companies. Ambolt's docs list 6 of the 11 fields on our checklist: Registered name, Entity number, Entity type, Status, Formation date, Principal address.
You get up to 30 calls a month.
We haven't run Ambolt through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
This plan is free. We rank 1,165 plans for business verification APIs by price. Half the plans cost $8.182 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), [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/ambolt/free-call-a-day-get-v1-entity-resolve
- [Business verification API: the 13 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://api.ambolt.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `GET https://api.ambolt.dev/v1/entity-resolve`
- API key: not needed
- Its API docs: https://api.ambolt.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing#/paths/~1v1~1entity-resolve
- Sold by: Ambolt (https://ambolt.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 55%
- Registered name: ✓
- Entity number: ✓
- 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: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Resolve a company name, website domain, registry number, LEI or VAT number to its official legal entity: registry, registry number, legal form, status, address, industry codes, size where published and LEI. Searches national registers (Norway, Finland, Czechia, Slovakia, France, UK, Latvia, Poland by KRS number) and GLEIF, scores the match and links every record to its source. Company-level only: no officers, no sole traders.

## Data

- Countries: Norway, Finland, Czechia, Slovakia, France, United Kingdom, Latvia, Estonia, Poland, Brazil, Singapore, Canada
- Keep data: no limit
- Use data: Do not use the services to attack or overload systems, to evade sanctions, or in breach of law. [...] Each developer-tool response names its source and licence. Where a source requires attribution, you must keep it when you reuse the data.

## Plan

- Pay: $0
- Enough for: 30 calls a month

## Rate limit

- Per day: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: query. Optional: country, limit, minScore, free
- Method: GET
- Path: /v1/entity-resolve

## About the plan

- Plan: Free call a day
- Who can get it: anyone, with no account or API key: one free call per tool and IP address per day

## The 31 fields the plan's answer can hold

best match, candidates, matched, query, query type, searched names, checked at, notes, source, unavailable sources, legal name, registry, registration number, legal form, status, incorporation date, address street, address city, address postal code, address country, country, industry code, industry description, industry code scheme, employees, LEI, website, licence, match score, match reason, source URL

## Ambolt's plans (2)

- [Ambolt, free call a day, GET /v1/entity-resolve](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-entity-resolve/llms.txt): $0.00 per 1,000, 55% complete
- [Ambolt, pay as you go, Pay per call with x402, GET /v1/entity-resolve](https://datacircle.dev/business-verification-apis/ambolt/pay-as-you-go-pay-per-call-with-x402-get-v1-entity-resolve/llms.txt): $10.00 per 1,000, 55% complete

## Ambolt's calls for this API (4)

- `GET /v1/entity-resolve`: [Ambolt, free call a day, GET /v1/entity-resolve](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-entity-resolve/llms.txt)
- `GET /v1/lei-lookup`: [Ambolt, free call a day, GET /v1/lei-lookup](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-lei-lookup/llms.txt)
- `GET /v1/nordic-company-lookup`: [Ambolt, free call a day, GET /v1/nordic-company-lookup](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-nordic-company-lookup/llms.txt)
- `GET /v1/us-business-entities`: [Ambolt, free call a day, GET /v1/us-business-entities](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-us-business-entities/llms.txt)

## Ambolt's APIs (6)

- [Ambolt: tech stack API pricing, 2 plans](https://datacircle.dev/company-technology-apis/ambolt/free/llms.txt)
- [Ambolt: domain WHOIS API pricing, 2 plans](https://datacircle.dev/domain-whois-apis/ambolt/free/llms.txt)
- [Ambolt: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/ambolt/free/llms.txt)
- [Ambolt: web scraping API pricing, 2 plans](https://datacircle.dev/web-scraping-apis/ambolt/free/llms.txt)
- [Ambolt: company enrichment API pricing, 2 plans, GET /v1/brazil-cnpj-lookup](https://datacircle.dev/company-enrichment-apis/ambolt/free-call-a-day-get-v1-brazil-cnpj-lookup/llms.txt)
- [Ambolt: company enrichment API pricing, 2 plans, GET /v1/eu-vat-validate](https://datacircle.dev/company-enrichment-apis/ambolt/free-call-a-day-get-v1-eu-vat-validate/llms.txt)
- [Ambolt: business verification API pricing, 2 plans, GET /v1/entity-resolve](https://datacircle.dev/business-verification-apis/ambolt/free-call-a-day-get-v1-entity-resolve/llms.txt)

## Ambolt: business verification API alternatives

- [eucompliance.tools, pay as you go, Pay per call (x402), GET /x402/company](https://datacircle.dev/business-verification-apis/eucompliance-tools/pay-as-you-go-pay-per-call-x402-get-x402-company/llms.txt): $10.00 per 1,000, 55% complete, live
- [GovFiles, top-up](https://datacircle.dev/business-verification-apis/govfiles/top-up/llms.txt): $10.00 per 1,000, 91% complete, stored
- [W System EU Business Data, pay as you go, Pay per call (x402), GET /company](https://datacircle.dev/business-verification-apis/w-system-eu-business-data/pay-as-you-go-pay-per-call-x402-get-company/llms.txt): $10.00 per 1,000, 55% complete, live
- [Asimplek, pay as you go, Pay per call with x402, POST /v1/compliance/check-vendor](https://datacircle.dev/business-verification-apis/asimplek/pay-as-you-go-pay-per-call-with-x402-post-v1-compliance-check-vendor/llms.txt): $10.00 per 1,000, 73% complete
- [x402agent.no, pay as you go](https://datacircle.dev/business-verification-apis/x402agent-no/pay-as-you-go/llms.txt): $10.00 per 1,000, 18% 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 2026-11-08.

- https://ambolt.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://ambolt.dev/licences?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://ambolt.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://ambolt.dev/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://ambolt.dev/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api.ambolt.dev/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api.ambolt.dev/catalog.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api.ambolt.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing