# ApiOne, free: Company enrichment API

> Send a company domain and get industry, size band, headquarters, founding year, funding stage, tech stack and recent growth signals.

ApiOne's company enrichment API on its Free plan. It costs $0.00 per 1,000 companies. ApiOne's docs list 8 of the 13 fields on our checklist: Description, Industry, Type and status, Technologies, Employees, Headquarters, Funding, Revenue and budgets.
We haven't run ApiOne through [our company enrichment API benchmark](https://datacircle.dev/best-company-enrichment-api.txt) yet.
This plan is free. We rank 2,096 plans for company enrichment APIs by price. Half the plans cost $8.562 per 1,000 companies or less. [See the best free company enrichment API plan.](https://datacircle.dev/best-company-enrichment-api.txt)
[Intrinio's $150 monthly plan](https://datacircle.dev/company-enrichment-apis/intrinio/150-monthly/llms.txt) costs the least per 1,000 companies. Intrinio's company enrichment API costs nothing beyond the plan price.
[APIs Peru's PEN 30 (about $9) monthly plan](https://datacircle.dev/company-enrichment-apis/apis-peru/pen-30-monthly/llms.txt) covers any number of companies in Peru only. APIs Peru's PEN 30 (about $9) monthly plan costs less up front than Intrinio's $150 monthly plan.
[Intrinio](https://datacircle.dev/company-enrichment-apis/intrinio/150-monthly/llms.txt), [ROIC.ai](https://datacircle.dev/company-enrichment-apis/roic-ai/89-monthly/llms.txt) and [GLEIF](https://datacircle.dev/company-enrichment-apis/gleif/free/llms.txt) are the best company enrichment API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/company-enrichment-apis/apione/free
- [Company enrichment API: the best of 170+ providers compared](https://datacircle.dev/best-company-enrichment-api.txt)
- Get it: https://apione.store/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#pricing
- Request: `POST https://api.apione.store/api/v1/companies/enrich`
- API key: with the plan, on https://apione.store/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#pricing
- Its API docs: https://apione.store/endpoints/company-enrichment?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Sold by: ApiOne (https://apione.store?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 62%
- Description: ✓
- Industry: ✓
- Type and status: ✓
- Technologies: ✓
- Employees: ✓
- Headquarters: ✓
- Funding: ✓
- Revenue and budgets: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Company search · 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: Send a company domain and get industry, size band, headquarters, founding year, funding stage, tech stack and recent growth signals.

## Data

- Freshness: live
- 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: 20 calls 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: domain
- Method: POST
- Path: /companies/enrich

## About the plan

- Plan: Free
- Who can get it: anyone

## The 15 fields the plan's answer can hold

name, description, industry, industry vertical, business model, company size, employee count estimate, headquarters, founded year, funding stage, annual revenue estimate, tech stack, growth signals, live evidence found, sources

## ApiOne's plans (4)

- [ApiOne, free](https://datacircle.dev/company-enrichment-apis/apione/free/llms.txt): $0.00 per 1,000, 62% complete, live
- [ApiOne, $49 monthly](https://datacircle.dev/company-enrichment-apis/apione/49-monthly/llms.txt): $49.00 per 1,000, 62% complete, live
- [ApiOne, $149 monthly](https://datacircle.dev/company-enrichment-apis/apione/149-monthly/llms.txt): $29.80 per 1,000, 62% complete, live
- [ApiOne, $499 monthly](https://datacircle.dev/company-enrichment-apis/apione/499-monthly/llms.txt): $24.95 per 1,000, 62% complete, live

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

- `POST /companies/enrich`: [ApiOne, free](https://datacircle.dev/company-enrichment-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 enrichment API alternatives

- [DataGait, $5 monthly, Subscription, POST /enrich, Enrich, deep](https://datacircle.dev/company-enrichment-apis/datagait/5-monthly-subscription-post-enrich-enrich-deep/llms.txt): $25.00 per 1,000, 23% complete, live
- [SerpWow, $1,500 yearly, Starter (annual), GET /search, Google Map Place Details](https://datacircle.dev/company-enrichment-apis/serpwow/1500-yearly-starter-annual-get-search-google-map-place-details/llms.txt): $25.00 per 1,000, 31% complete, live
- [Interzoid, $30,000 yearly, 1 Million Credits (annual), POST /enrich, Batch Data Enrichment (business-info-domain)](https://datacircle.dev/company-enrichment-apis/interzoid/30000-yearly-1-million-credits-annual-post-enrich-batch-data-enrichment-business-info-domain/llms.txt): $25.00 per 1,000, 0% complete, live
- [QuanticData, $299 monthly](https://datacircle.dev/company-enrichment-apis/quanticdata/299-monthly/llms.txt): $25.116 per 1,000, 69% 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 2026-11-07.

- https://apione.store?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/endpoints/company-enrichment?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/mcp?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/refund?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apione.store/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing