# BuyerCaddy, free, Forever Free, POST /ai/find-customers-of-products: Company discovery API

> Use AI to quickly discover companies that likely use a product or vendor from a natural-language prompt.

BuyerCaddy's company discovery API on its Forever Free plan. It costs $0.00 per 1,000 companies. It returns 2 of the 13 key fields we check: Industry, Headquarters.
We haven't run BuyerCaddy through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 752 plans for company discovery APIs by price. Half the plans cost $1.188 per 1,000 companies or less.
[StackScan's $189 monthly plan](https://datacircle.dev/company-discovery-apis/stackscan/189-monthly-enterprise-post-v1-tech-lookup-lists/llms.txt) is the cheapest paid plan per 1,000 companies: as little as $0.0000015. StackScan's $189 monthly plan covers up to 259,200 pages a month at no extra cost. Each page holds 500,000 companies.
[PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies. PeopleSearch.im's $5 pack costs less up front than StackScan's $189 monthly plan.
[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/49-monthly/llms.txt), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/49-monthly-starter-post-discover/llms.txt) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) are the best company discovery API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-discovery-apis/buyercaddy/free-forever-free-post-ai-find-customers-of-products
- [Company discovery API: 60+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://buyercaddy.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://api.salescaddy.ai/api/ai/find-customers-of-products`
- API key: with the plan, on https://buyercaddy.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://buyercaddy-api.readme.io/reference/ai-find-customers-of-products?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: BuyerCaddy (https://buyercaddy.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 15%
- Industry: ✓
- Headquarters: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page of 100
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Company - Tech Stacks · Find Tech Stacks for a Company · Companies - Search · Company - Competitors · Company - Cohorts · Company - Firmographics

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Use AI to quickly discover companies that likely use a product or vendor from a natural-language prompt.

## Data

- Keep data: no limit
- Use data: These Terms of Service permit you to use our website for your personal, non-commercial use only. You must not reproduce, distribute, modify, create derivative works of, publicly display, publicly perform, republish, download, store or transmit any of the material on our website, except as follows: [...] You must not: Modify copies of any materials from this site. Delete or alter any copyright, trademark, or other proprietary rights notices from copies of materials from this site. You must not access or use for any commercial purposes any part of our website or any services or materials available through our website. [...] You agree not to use our website: In any way that violates any applicable federal, state, local or international law or regulation. To transmit, or procure the sending of, any advertising or promotional material, including any “junk mail”, “chain letter” or “spam” or any other similar solicitation. To engage in any other conduct that restricts or inhibits anyone’s use or enjoyment of our website, or which, as determined by us, may harm us or users of our website or expose them to liability. Additionally, you agree not to: Use our website in any manner that could disable, overburden, damage, or impair the site or interfere with any other party’s use of the website. Use any robot, spider or other automatic device, process or means to access our website for any purpose, including monitoring or copying any of the material on our website. Use any device, software, or routine that interferes with the proper working of our website. Introduce any viruses, Trojan horses, worms, logic bombs or other material which is malicious or technologically harmful. Otherwise attempt to interfere with the proper working of our website.

## Plan

- Pay: $0
- You get: 1,000 tokens
- Enough for: 200 pages

## Speed

- Answer: in the call

## The call

- You send: prompt, X-On-Behalf-Of-User header. Optional: size
- Method: POST
- Path: /ai/find-customers-of-products

## About the plan

- Plan: Forever Free
- Who can get it: anyone 18 or older

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

name, country, industry, how the product is used, scope, evidence, probability, first verified, last verified

## BuyerCaddy's plans (4)

- [BuyerCaddy, free, Forever Free, POST /ai/find-customers-of-products](https://datacircle.dev/company-discovery-apis/buyercaddy/free-forever-free-post-ai-find-customers-of-products/llms.txt): $0.00 per 1,000, 15% complete
- [BuyerCaddy, $1,000 monthly, Starter, POST /ai/find-customers-of-products](https://datacircle.dev/company-discovery-apis/buyercaddy/1000-monthly-starter-post-ai-find-customers-of-products/llms.txt): $0.50 per 1,000, 15% complete
- [BuyerCaddy, $3,000 monthly, Growth, POST /ai/find-customers-of-products](https://datacircle.dev/company-discovery-apis/buyercaddy/3000-monthly-growth-post-ai-find-customers-of-products/llms.txt): $0.15 per 1,000, 15% complete
- [BuyerCaddy, contact us, Enterprise, POST /ai/find-customers-of-products](https://datacircle.dev/company-discovery-apis/buyercaddy/contact-us-enterprise-post-ai-find-customers-of-products/llms.txt): 15% complete

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

- `POST /companies/search`: [BuyerCaddy, free, Forever Free, POST /companies/search](https://datacircle.dev/company-discovery-apis/buyercaddy/free-forever-free-post-companies-search/llms.txt)
- `POST /ai/find-customers-of-products`: [BuyerCaddy, free, Forever Free, POST /ai/find-customers-of-products](https://datacircle.dev/company-discovery-apis/buyercaddy/free-forever-free-post-ai-find-customers-of-products/llms.txt)

## BuyerCaddy's APIs (4)

- [BuyerCaddy: company enrichment API pricing, 4 plans](https://datacircle.dev/company-enrichment-apis/buyercaddy/free/llms.txt)
- [BuyerCaddy: company discovery API pricing, 4 plans, POST /ai/find-customers-of-products](https://datacircle.dev/company-discovery-apis/buyercaddy/free-forever-free-post-ai-find-customers-of-products/llms.txt)
- [BuyerCaddy: similar companies API pricing, 4 plans, GET /companies/{companyDomain}/cohort/{cohort}](https://datacircle.dev/similar-company-apis/buyercaddy/free-forever-free-get-companies-companydomain-cohort-cohort/llms.txt)
- [BuyerCaddy: similar companies API pricing, 4 plans, GET /companies/{companyDomain}/competitors](https://datacircle.dev/similar-company-apis/buyercaddy/free-forever-free-get-companies-companydomain-competitors/llms.txt)
- [BuyerCaddy: tech stack API pricing, 4 plans, POST /companies/{companyDomain}/products/paged](https://datacircle.dev/company-technology-apis/buyercaddy/free-forever-free-post-companies-companydomain-products-paged/llms.txt)
- [BuyerCaddy: tech stack API pricing, 4 plans, POST /ai/find-techstacks-for-company](https://datacircle.dev/company-technology-apis/buyercaddy/free-forever-free-post-ai-find-techstacks-for-company/llms.txt)

## BuyerCaddy: company discovery API alternatives

- [Nimble, pay as you go, POST /v2/serp](https://datacircle.dev/company-discovery-apis/nimble/pay-as-you-go-post-v2-serp/llms.txt): $0.15 per 1,000, 38% complete, live
- [Oppora, $225 quarterly](https://datacircle.dev/company-discovery-apis/oppora/225-quarterly/llms.txt): $0.15 per 1,000, 77% complete
- [Context.dev, $900 yearly](https://datacircle.dev/company-discovery-apis/context-dev/900-yearly/llms.txt): $0.15 per 1,000, 54% complete
- [Serpent API, top-up from $10, Default, GET /api/maps/search, Google Maps Deep Place Search](https://datacircle.dev/company-discovery-apis/serpent-api/top-up-from-10-default-get-api-maps-search-google-maps-deep-place-search/llms.txt): $0.15 per 1,000, 31% 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 2026-11-04.

- https://buyercaddy-api.readme.io/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy-api.readme.io/reference/ai-endpoints-best-practices?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy-api.readme.io/reference/ai-find-customers-of-products?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy-api.readme.io/reference/errors-rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy-api.readme.io/reference/workflow?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy.com/credit-details?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://buyercaddy.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing