# Mono, pay as you go: Business verification API

> Verify the registration details of Nigerian corporate entities with the Corporate Affairs Commission (CAC). This feature allows you to validate the legitimacy and authenticity of businesses, ensuring secure transactions and partnerships.

Mono's Per API call plan for the business verification API costs $48.057 per 1,000 companies. We check each provider's docs for 11 fields. Mono's docs list 5: Entity number, Entity type, Status, Formation date, Principal address.
NGN 64,000.00 per 1,000 companies is $48.057 at the Central Bank of Nigeria's rate of $0.75089 for NGN 1,000.
We haven't run Mono through [our business verification API benchmark](https://datacircle.dev/best-business-verification-api.txt) yet.
We rank 1,422 plans for business verification APIs by price. Half the plans cost $7.895 or less per 1,000 companies. This plan costs less per 1,000 companies than 22% of the 1,422 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), [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/mono/pay-as-you-go
- [Business verification API: the 14 best providers compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://mono.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `GET https://api.withmono.com/v3/lookup/cac`
- API key: with the plan, on https://mono.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://docs.mono.co/docs/lookup/cac-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing#lookup-a-business
- Sold by: Mono (https://mono.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 45%
- Entity number: ✓
- Entity type: ✓
- Status: ✓
- Formation date: ✓
- Principal address: ✓

## Price

- $ per 1,000 companies: $48.057
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Verify the registration details of Nigerian corporate entities with the Corporate Affairs Commission (CAC). This feature allows you to validate the legitimacy and authenticity of businesses, ensuring secure transactions and partnerships.

## Data

- Freshness: live
- Countries: Nigeria
- Keep data: no limit
- Use data: The Client shall not, directly or indirectly, (i) reverse engineer, decompile, disassemble or otherwise attempt to discover the source code or underlying ideas or algorithms of any relevant element of the Platform, (ii) modify, translate, or create derivative works based on the Software, (iii) rent, lease, distribute, sell, resell, assign, or otherwise transfer rights to use the relevant elements of the Platform, (iv) use the Platform for purposes not related to the rendering of the services to End-Users, (v) remove or alter any proprietary notices from the Platform or otherwise any reference to the Mono brand or name and shall not otherwise rebrand or re-badge any relevant element of the Platform without Mono’s prior written consent and on payment of such additional charges as Mono may determine, (vi) publish or disclose to third parties any evaluation of the Platform without Mono’s prior written consent, or (vii) create any link to Mono’s website, the Platform or frame or mirror any content contained on, or accessible from, the Platform, or (viii) otherwise replicate or seek to replicate the functionality or look and feel of the Platform. [...] Not to use the Platform for illegal purposes, 

## Plan

- Pay: monthly

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: search. Optional: exact
- Method: GET
- Path: /v3/lookup/cac

## About the plan

- Plan: Per API call
- Who can get it: a registered business that signs up on the Partner Dashboard and completes KYB, its account manager or Mono sales enables the Lookup endpoints

## The 20 fields the plan's answer can hold

CAC company ID, approved name, RC number, classification, classification ID, company type, nature of business, active, registration approved, delisting status, registration date, business commencement date, objectives, head office address, branch address, address, city, LGA, state, email

## Mono's plans (1)

- [Mono, pay as you go](https://datacircle.dev/business-verification-apis/mono/pay-as-you-go/llms.txt): $48.057 per 1,000, 45% complete, live

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

- `GET /v3/lookup/cac`: [Mono, pay as you go](https://datacircle.dev/business-verification-apis/mono/pay-as-you-go/llms.txt)

## Mono's APIs (2)

- [Mono: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/mono/pay-as-you-go/llms.txt)
- [Mono: company enrichment API pricing, 1 plan, GET /v3/lookup/cac/profile/{rcnumber}](https://datacircle.dev/company-enrichment-apis/mono/pay-as-you-go-per-api-call-get-v3-lookup-cac-profile-rcnumber/llms.txt)
- [Mono: company enrichment API pricing, 1 plan, POST /v3/lookup/tin](https://datacircle.dev/company-enrichment-apis/mono/pay-as-you-go-per-api-call-post-v3-lookup-tin/llms.txt)

## Mono: business verification API alternatives

- [W System EU Business Data, pay as you go, Pay per call (x402), POST /kyb/check](https://datacircle.dev/business-verification-apis/w-system-eu-business-data/pay-as-you-go-pay-per-call-x402-post-kyb-check/llms.txt): $45.00 per 1,000, 55% complete, live (sanctions status, sanctions top score, sanctions matches, sanctions lists date: 1 day)
- [Parse, $300 monthly, Team, GET /scraper/1e4d1a42-dc55-4c5a-b3ea-289a254fa495/search_entity](https://datacircle.dev/business-verification-apis/parse/300-monthly-team-get-scraper-1e4d1a42-dc55-4c5a-b3ea-289a254fa495-search-entity/llms.txt): $45.00 per 1,000, 55% complete, live
- [OpenSOSData, $250 pack, Scale, POST /v1/lookup](https://datacircle.dev/business-verification-apis/opensosdata/250-pack-scale-post-v1-lookup/llms.txt): $50.00 per 1,000, 100% complete, live
- [iApp Technology, top-up from ฿445,000, Prepaid credits from 500,000 IC, GET /ekyb/live/v1/company/search](https://datacircle.dev/business-verification-apis/iapp-technology/top-up-from-445000-prepaid-credits-from-500000-ic-get-ekyb-live-v1-company-search/llms.txt): $53.27 per 1,000, 18% 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.mono.co/docs/lookup/cac-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.mono.co/docs/lookup/overview?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://docs.mono.co/docs/sandbox?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://mono.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://mono.co/legal?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://mono.co/lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://mono.co/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://support.mono.co/en/articles/11071042-updated-mono-new-product-pricing-nigeria?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing