# ApiOne, free: Company discovery API

> Search companies by country, city, industry, keyword, employee range, funding stage or founding year.

ApiOne's company discovery API on its Free plan. It costs $0.00 per 1,000 companies. ApiOne's docs list 6 of the 13 fields on our checklist: Description, Industry, Type and status, Employees, Social profiles, Headquarters.
We haven't run ApiOne through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 899 plans for company discovery APIs by price. Half the plans cost $1.00 per 1,000 companies or less. [See the best free company discovery API plan.](https://datacircle.dev/best-company-discovery-api.txt)
[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. StackScan's $189 monthly plan charges nothing per call. You get as many companies as StackScan's rate limit allows.
[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/apione/free
- [Company discovery API: the best of 80+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://apione.store/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing#pricing
- Request: `POST https://api.apione.store/api/v1/companies/search`
- API key: with the plan, on https://apione.store/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing#pricing
- Its API docs: https://apione.store/endpoints/company-search?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: ApiOne (https://apione.store?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 46%
- Description: ✓
- Industry: ✓
- Type and status: ✓
- Employees: ✓
- Social profiles: ✓
- Headquarters: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Company enrichment · People enrichment · People search · Email finder · Email verification · Tech stack detection · Business signals · Hiring signals · Arabic/English name matching · Company name normalization · Signal Watch

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Search companies by country, city, industry, keyword, employee range, funding stage or founding year.

## Data

- Keep data: no limit
- Use data: Permitted use: Enriching company records in your CRM, sales tools, or internal databases. Finding and verifying professional email addresses for legitimate business outreach. Detecting the technology stack of companies you are targeting for sales or partnership. Identifying hiring and growth signals to prioritise outreach. Building internal sales, recruiting, or GTM tools for your organisation. Integrating ApiOne data into your own SaaS product to enrich your customers' records. Academic or market research using aggregated, anonymised outputs. Prohibited use: Reselling raw data: You may not resell, license, or distribute raw API responses as a standalone data product or data feed to third parties. Competitive use: You may not use ApiOne to build a competing B2B data enrichment API or data provider service. Reverse engineering: You may not attempt to extract, reverse-engineer, or reconstruct our underlying data sources or AI models. Spam: You may not use email addresses returned by ApiOne for bulk unsolicited spam campaigns. All outreach must comply with CAN-SPAM, GDPR, and applicable local law. Illegal targeting: You may not use ApiOne to identify, profile, or contact individuals for discriminatory, harassing, or unlawful purposes. Key sharing: You may not share your API key with users or organisations outside your company. Automation abuse: You may not use automated scripts to deliberately exceed your plan's rate limits or probe system limits. Account circumvention: You may not register multiple free accounts to bypass credit limits.

## Plan

- Pay: $0
- You get: 100 credits a month
- Enough for: about 33 results a month
- Expires: reset monthly, credits cannot be accumulated

## Rate limit

- Per second: 0.5
- Concurrent: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: country, city, industry, keyword, employee_range, funding_stage, founded_after, count, offset
- Method: POST
- Path: /companies/search

## About the plan

- Plan: Free
- Who can get it: anyone

## The 11 fields the plan's answer can hold

total results, name, domain, industry, headquarters, founded year, employee range, company type, open jobs, LinkedIn URL, description

## ApiOne's plans (4)

- [ApiOne, free](https://datacircle.dev/company-discovery-apis/apione/free/llms.txt): $0.00 per 1,000, 46% complete
- [ApiOne, $49 monthly](https://datacircle.dev/company-discovery-apis/apione/49-monthly/llms.txt): $29.40 per 1,000, 46% complete
- [ApiOne, $149 monthly](https://datacircle.dev/company-discovery-apis/apione/149-monthly/llms.txt): $17.88 per 1,000, 46% complete
- [ApiOne, $499 monthly](https://datacircle.dev/company-discovery-apis/apione/499-monthly/llms.txt): $14.97 per 1,000, 46% complete

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

- `POST /companies/search`: [ApiOne, free](https://datacircle.dev/company-discovery-apis/apione/free/llms.txt)

## ApiOne's APIs (8)

- [ApiOne: company discovery API pricing, 4 plans](https://datacircle.dev/company-discovery-apis/apione/free/llms.txt)
- [ApiOne: company enrichment API pricing, 4 plans](https://datacircle.dev/company-enrichment-apis/apione/free/llms.txt)
- [ApiOne: company open jobs API pricing, 4 plans](https://datacircle.dev/company-open-job-apis/apione/free/llms.txt)
- [ApiOne: tech stack API pricing, 4 plans](https://datacircle.dev/company-technology-apis/apione/free/llms.txt)
- [ApiOne: email verification API pricing, 4 plans](https://datacircle.dev/validate-email-apis/apione/free/llms.txt)
- [ApiOne: email finder API pricing, 4 plans](https://datacircle.dev/find-email-apis/apione/free/llms.txt)
- [ApiOne: people search API pricing, 4 plans](https://datacircle.dev/people-search-apis/apione/free/llms.txt)
- [ApiOne: people enrichment API pricing, 4 plans](https://datacircle.dev/person-enrichment-apis/apione/free/llms.txt)

## ApiOne: company discovery API alternatives

- [Autobound, $149 pack, Scale, POST /v1/companies/search](https://datacircle.dev/company-discovery-apis/autobound/149-pack-scale-post-v1-companies-search/llms.txt): $15.00 per 1,000, 54% complete, 1 month
- [Coresignal, $1,500 monthly, Premium, GET /v2/company_multi_source/collect/{company_id}, Collect: Company API](https://datacircle.dev/company-discovery-apis/coresignal/1500-monthly-premium-get-v2-company-multi-source-collect-company-id-collect-company-api/llms.txt): $15.00 per 1,000, 100% complete, stored
- [Canonical, top-up, Extra credits (Lite), GET /api/v1/search](https://datacircle.dev/company-discovery-apis/canonical/top-up-extra-credits-lite-get-api-v1-search/llms.txt): $15.00 per 1,000, 62% complete, stored (total funding (USD), funding round count, latest funding date, latest funding amount (USD), latest funding series, latest post-money valuation, latest lead investor, investors: 1 day)
- [Explorium, $7,499.99 pack, Scale, POST /v2/businesses, Fetch businesses](https://datacircle.dev/company-discovery-apis/explorium/7499-99-pack-scale-post-v2-businesses-fetch-businesses/llms.txt): $15.00 per 1,000, 54% 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://apione.store?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/endpoints/company-search?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/mcp?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/refund?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://apione.store/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing