# OpenFunnel, free: Company discovery API

> Returns companies whose recent job postings mention a given technology.

OpenFunnel's company discovery API on its DIY plan. It costs $0.00 per 1,000 companies. It returns 7 of the 13 key fields we check: Description, Industry, Employees, Social profiles, Headquarters, Funding, Revenue and budgets.
We haven't run OpenFunnel 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/openfunnel/free
- [Company discovery API: 60+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://openfunnel.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `GET https://api.openfunnel.dev/api/v2/tech/companies`
- API key: with the plan, on https://openfunnel.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://docs.openfunnel.dev/agent-primitives/search-companies-by-tech-stack?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: OpenFunnel (https://openfunnel.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 54%
- Description: ✓
- Industry: ✓
- Employees: ✓
- Social profiles: ✓
- Headquarters: ✓
- Funding: ✓
- Revenue and budgets: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Most per search: 50,000
- Also pays for: from the same budget: Search Lookalikes · Search Lookalikes Bulk · Deep Research

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Returns companies whose recent job postings mention a given technology.

## Data

- Keep data: no limit
- Use data: OpenFunnel grants Customer a nonexclusive, limited, personal, nonsublicensable, nontransferable right and license to internally access and use the OpenFunnel product(s) and/or service(s) specified in such Order Form [...] for the internal business purposes of Customer [...]. Except as expressly set forth in this Agreement, Customer shall not (and shall not permit any third party to), directly or indirectly: reverse engineer, decompile, disassemble, or otherwise attempt to discover the source code, object code, or underlying structure, ideas, or algorithms of the Service (except to the extent applicable laws specifically prohibit such restriction), modify, translate, or create derivative works based on the Service, copy, rent, lease, distribute, pledge, assign, or otherwise transfer or encumber rights to the Service, use the Service for the benefit of a third party (other than Customer's Affiliates and service providers using the Service solely on Customer's behalf, where permitted by the Order Form or Plan Terms), remove or otherwise alter any proprietary notices or labels from the Service or any portion thereof, use the Service to build an application or product that is competitive with any OpenFunnel product or service, interfere or attempt to interfere with the proper working of the Service or any activities conducted on the Service, or bypass any measures OpenFunnel may use to prevent or restrict access to the Service (or other accounts, computer systems, or networks connected to the Service).

## Plan

- Pay: $0
- You get: 50,000 credits

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: tech. Optional: variations, lookback_days, page, exclude_vendor, exclude_aggregators, exclude_company_slugs, include_evidence, enrich, hq_country_code, min_employee_count, max_employee_count
- Method: GET
- Path: /api/v2/tech/companies

## About the plan

- Plan: DIY
- Who can get it: anyone

## The 27 fields the plan's answer can hold

company slug, name, post count, first posted date, last posted date, evidence title, evidence URL, evidence date, evidence snippet, website, LinkedIn URL, LinkedIn organization ID, LinkedIn follower count, employee count, industries, description, HQ city, HQ region, HQ country, HQ country code, funding stage, total funding, latest funding, revenue, total results, total companies matched, credits used

## OpenFunnel's plans (2)

- [OpenFunnel, free](https://datacircle.dev/company-discovery-apis/openfunnel/free/llms.txt): $0.00 per 1,000, 54% complete
- [OpenFunnel, contact us](https://datacircle.dev/company-discovery-apis/openfunnel/contact-us/llms.txt): 54% complete

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

- `GET /api/v2/tech/companies`: [OpenFunnel, free](https://datacircle.dev/company-discovery-apis/openfunnel/free/llms.txt)

## OpenFunnel's APIs (3)

- [OpenFunnel: company discovery API pricing, 2 plans](https://datacircle.dev/company-discovery-apis/openfunnel/free/llms.txt)
- [OpenFunnel: company enrichment API pricing, 2 plans](https://datacircle.dev/company-enrichment-apis/openfunnel/free/llms.txt)
- [OpenFunnel: similar companies API pricing, 2 plans, GET /api/v1/account/search-lookalikes](https://datacircle.dev/similar-company-apis/openfunnel/free-diy-get-api-v1-account-search-lookalikes/llms.txt)
- [OpenFunnel: similar companies API pricing, 2 plans, POST /api/v1/account/search-lookalikes-bulk](https://datacircle.dev/similar-company-apis/openfunnel/free-diy-post-api-v1-account-search-lookalikes-bulk/llms.txt)

## OpenFunnel: company discovery API alternatives

- [GetProspect, free](https://datacircle.dev/company-discovery-apis/getprospect/free/llms.txt): $0.00 per 1,000, 62% complete, stored
- [Hunter, free, POST /discover](https://datacircle.dev/company-discovery-apis/hunter/free-post-discover/llms.txt): $0.00 per 1,000, 54% complete, stored
- [PeopleSearch.im, free](https://datacircle.dev/company-discovery-apis/peoplesearch-im/free/llms.txt): $0.00 per 1,000, 38% complete, stored
- [AnVendor, free, POST /v1/leads/search](https://datacircle.dev/company-discovery-apis/anvendor/free-post-v1-leads-search/llms.txt): $0.00 per 1,000, 23% complete, stored
- [Minelead, free](https://datacircle.dev/company-discovery-apis/minelead/free/llms.txt): $0.00 per 1,000, 0% complete, stored

## 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://docs.openfunnel.dev/agent-primitives/credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://docs.openfunnel.dev/agent-primitives/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://docs.openfunnel.dev/agent-primitives/search-companies-by-tech-stack?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://openfunnel.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://openfunnel.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://openfunnel.dev/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing