# Vainu, free: Company discovery API

> Search, filter, enrich, export, and track changes across the whole database. Stream a million companies as JSONL, or run one async job over an entire country’s records in a single call.

Vainu's company discovery API on its API trial plan. It costs $0.00 per 1,000 companies. It returns 3 of the 13 key fields we check: Type and status, Technologies, Phones.
Vainu limits how many pages you get but gives no number.
We rank 659 plans by price. [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 to start 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 [Skrapp](https://datacircle.dev/company-discovery-apis/skrapp/349-monthly/llms.txt) are the best company discovery API providers in our benchmark.

- This page: https://datacircle.dev/company-discovery-apis/vainu/free
- [Best company discovery API in 2026: pricing compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://developers.vainu.com/docs/vainu-api-trial?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://api.vainu.io/api/v3/organizations/`
- API key: with the plan, on https://developers.vainu.com/docs/vainu-api-trial?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://developers.vainu.com/docs/filtering-company-data?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: Vainu (https://www.vainu.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 23%
- Type and status: ✓
- Technologies: ✓
- Phones: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page of 20
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Search, filter, enrich, export, and track changes across the whole database. Stream a million companies as JSONL, or run one async job over an entire country’s records in a single call.

## Data

- Freshness: 1 day
- Countries: Finland, Sweden, Norway, Denmark, Netherlands
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0

## Rate limit

- Concurrent: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: query, fields, database. Optional: limit, offset, order, is_active, unwind_subdocument, unwind_subdocument_query, unwind_subdocument_limit, unwind_subdocument_offset, aggregation, lookup
- Method: POST
- Path: /api/v3/organizations/

## About the plan

- Plan: API trial
- Who can get it: anyone who requests a free trial token (valid 30 days)

## The 16 fields the plan's answer can hold

business ID, company name, domain, website, legal entity, official status, active, founded, official industry code, official industry description, technologies, contact full name, contact email, contact phone number, contact decision-maker, contact functional area

## Vainu's plans (4)

- [Vainu, free](https://datacircle.dev/company-discovery-apis/vainu/free/llms.txt): $0.00 per 1,000, 23% complete, 1 day
- [Vainu, €5,004 yearly](https://datacircle.dev/company-discovery-apis/vainu/5004-yearly/llms.txt): 23% complete, 1 day
- [Vainu, €6,996 yearly](https://datacircle.dev/company-discovery-apis/vainu/6996-yearly/llms.txt): 23% complete, 1 day
- [Vainu, contact us](https://datacircle.dev/company-discovery-apis/vainu/contact-us/llms.txt): 23% complete, 1 day

## Vainu's calls (1)

- `POST /api/v3/organizations/`: [Vainu, free](https://datacircle.dev/company-discovery-apis/vainu/free/llms.txt)

## Vainu's APIs (1)

- [Vainu: company discovery API pricing, 4 plans](https://datacircle.dev/company-discovery-apis/vainu/free/llms.txt)

## Vainu: company discovery API alternatives

- [Findymail, free trial, POST /api/intellimatch/search, Search leads](https://datacircle.dev/company-discovery-apis/findymail/free/llms.txt): $0.00 per 1,000, 31% complete, live
- [SerpKite, free](https://datacircle.dev/company-discovery-apis/serpkite/free/llms.txt): $0.00 per 1,000, 23% complete, live
- [Sumble, free, POST /v9/organizations, Organizations](https://datacircle.dev/company-discovery-apis/sumble/free-post-v9-organizations-organizations/llms.txt): $0.00 per 1,000, 46% complete, 1 day
- [Omkar Cloud, free](https://datacircle.dev/company-discovery-apis/omkar-cloud/free/llms.txt): $0.00 per 1,000, 31% complete, live
- [Ujeebu, free](https://datacircle.dev/company-discovery-apis/ujeebu/free/llms.txt): $0.00 per 1,000, 15% 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 2026-11-02.

- https://developers.vainu.com/docs/data-reference.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developers.vainu.com/docs/filtering-company-data.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developers.vainu.com/docs/quick-start.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developers.vainu.com/docs/vainu-api-overview.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developers.vainu.com/docs/vainu-api-trial.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developers.vainu.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developers.vainu.com/reference/api_v3_organizations_create.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.vainu.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.vainu.com/delivery/headless?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.vainu.com/legal-stuff/service-description?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.vainu.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing