# CompanyProof, $99 monthly, Starter, POST /v2/claims/verify: Business verification API

> Verify submitted company identity claims against available company records. CompanyProof returns a claim-level verdict, the observed value and source evidence.

CompanyProof's Starter plan for the business verification API costs $396.00 per 1,000 companies. CompanyProof's docs list 2 of the 11 fields on our checklist: Registered name, Entity number.
We haven't run CompanyProof through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
We rank 1,165 plans for business verification APIs by price. Half the plans cost $8.182 or less per 1,000 companies. This plan costs less per 1,000 companies than 8% of the 1,165 plans.
[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/companyproof/99-monthly-starter-post-v2-claims-verify
- [Business verification API: the 13 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://companyproof.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://companyproof.ai/v2/claims/verify`
- API key: with the plan, on https://companyproof.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://companyproof.ai/docs/verify?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: CompanyProof (https://companyproof.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 18%
- Registered name: ✓
- Entity number: ✓

## Price

- $ per 1,000 companies: $396.00
- Per: result
- Billing: monthly
- $ a month: $99

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Resolve companies · Retrieve a company profile · Stream an intelligence query

## Overage

- Units cap: hard

## In their words

- Their pitch: Verify submitted company identity claims against available company records. CompanyProof returns a claim-level verdict, the observed value and source evidence.

## Data

- Countries: Worldwide
- Keep data: You may keep lawfully obtained output for your permitted internal records after the subscription ends, subject to data-protection duties, applicable source restrictions disclosed with the data, and your agreement.
- Use data: Your subscription gives your authorised users a non-exclusive, non-transferable right to use the service and its output for the business purposes permitted by your plan or order, including authorised internal API and agent workflows. [...] Resale, onward distribution, customer-facing data delivery, bulk licensing, white-labelling and model-training rights require an express written grant.

## Plan

- Pay: $99
- You get: 250 credits a month
- Enough for: 250 results a month
- Expires: at the end of each monthly period

## Rate limit

- Per second: 0.5
- Batch: 20

## Speed

- Answer: in the call

## The call

- You send: company.name, company.country, one of answer or claims. Optional: company.registration_number, monitor, Idempotency-Key header
- Method: POST
- Path: /v2/claims/verify

## About the plan

- Plan: Starter
- Who can get it: business and professional use only, not personal consumer use

## The 22 fields the plan's answer can hold

proof ID, company ID, legal name, registration number, country code, claim ID, claim field, published value, observed value, verdict, explanation, source name, source URL, source record ID, retrieved at, source updated at, verified count, corrected count, stale count, unsupported count, monitoring status, latency

## CompanyProof's plans (3)

- [CompanyProof, $99 monthly, Starter, POST /v2/claims/verify](https://datacircle.dev/business-verification-apis/companyproof/99-monthly-starter-post-v2-claims-verify/llms.txt): $396.00 per 1,000, 18% complete
- [CompanyProof, $495 monthly, Production, POST /v2/claims/verify](https://datacircle.dev/business-verification-apis/companyproof/495-monthly-production-post-v2-claims-verify/llms.txt): $99.00 per 1,000, 18% complete
- [CompanyProof, $995 monthly, Enterprise, POST /v2/claims/verify](https://datacircle.dev/business-verification-apis/companyproof/995-monthly-enterprise-post-v2-claims-verify/llms.txt): $19.90 per 1,000, 18% complete

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

- `POST /v2/companies/search`: [CompanyProof, $99 monthly, Starter, POST /v2/companies/search](https://datacircle.dev/business-verification-apis/companyproof/99-monthly-starter-post-v2-companies-search/llms.txt)
- `POST /v2/claims/verify`: [CompanyProof, $99 monthly, Starter, POST /v2/claims/verify](https://datacircle.dev/business-verification-apis/companyproof/99-monthly-starter-post-v2-claims-verify/llms.txt)

## CompanyProof's APIs (3)

- [CompanyProof: company enrichment API pricing, 3 plans](https://datacircle.dev/company-enrichment-apis/companyproof/99-monthly/llms.txt)
- [CompanyProof: company hierarchy API pricing, 3 plans](https://datacircle.dev/company-hierarchy-apis/companyproof/99-monthly/llms.txt)
- [CompanyProof: business verification API pricing, 3 plans, POST /v2/claims/verify](https://datacircle.dev/business-verification-apis/companyproof/99-monthly-starter-post-v2-claims-verify/llms.txt)

## CompanyProof: business verification API alternatives

- [VAT Search, €81 yearly](https://datacircle.dev/business-verification-apis/vat-search/81-yearly/llms.txt): $379.789 per 1,000, 55% complete
- [TINCheck, $399.95 monthly](https://datacircle.dev/business-verification-apis/tincheck/399-95-monthly/llms.txt): $399.95 per 1,000, 9% complete, live
- [TIN Comply, $2,000 pack, 5,000-Pack, POST /api/v1/validate/company-details-lookup-by-name-address](https://datacircle.dev/business-verification-apis/tin-comply/2000-pack-5000-pack-post-api-v1-validate-company-details-lookup-by-name-address/llms.txt): $400.00 per 1,000, 27% complete, stored
- [SONAR (getsonar.report), €129 pack, Pack of 20 reports, POST /v1/agents/kyb-diligence/findings](https://datacircle.dev/business-verification-apis/sonar-getsonar-report/129-pack-pack-of-20-reports-post-v1-agents-kyb-diligence-findings/llms.txt): $403.233 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 2026-11-07.

- https://companyproof.ai/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/business-verification-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/company-data-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/docs/limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/docs/response?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/docs/verify?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/legal?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://companyproof.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing