# KnowFirst, free: Company discovery API

> Search businesses across Australia and New Zealand by name, industry (ANZSIC), location, size, registration details and more, and paginate through results.

KnowFirst's company discovery API on its Free plan. It costs $0.00 per 1,000 companies. KnowFirst's docs list 5 of the 13 key fields we check: Description, Type and status, Images, Headquarters, Phones.
We haven't run KnowFirst through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 881 plans for company discovery APIs by price. Half the plans cost $1.00 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. 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/knowfirst/free
- [Company discovery API: the best of 70+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://knowfirst.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `GET https://api.knowfirst.ai/v1/business/list`
- API key: with the plan, on https://knowfirst.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://app.knowfirst.ai/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: KnowFirst (https://knowfirst.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 38%
- Description: ✓
- Type and status: ✓
- Images: ✓
- Headquarters: ✓
- Phones: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page, size not stated
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Extra fields: email: +$0.00
- Also pays for: from the same budget: GET /business/list/{views} · GET /business/enrich · GET /business/view/{views} · GET /business/view/overview · GET /business/view/locations · GET /business/view/socials · GET /business/view/ads · GET /business/view/organic · GET /business/view/directories · GET /business/view/domains · GET /business/view/tech_stack · GET /business/view/jobs · GET /business/view/people · GET /business/view/salaries · GET /business/view/news · GET /business/view/contracts · GET /business/view/trademarks · GET /business/view/awards · GET /business/view/customer_reviews · GET /business/view/employee_reviews · GET /business/view/feed · GET /business/view/related · GET /domain/list/{views} · GET /person/list · GET /person/view/{id} · GET /person/view · GET /location/list · GET /business/suggestions · POST /business/list/export · GET /person/list/export

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Search businesses across Australia and New Zealand by name, industry (ANZSIC), location, size, registration details and more, and paginate through results.

## Data

- Countries: Australia, New Zealand
- Keep data: you must not [...] store [...] any part of the Website and API [...] without prior written consent from us
- Use data: you must not in any form or by any means copy, adapt, reproduce (other than for the purpose of viewing the Website and API in your browser), store, modify, distribute, print, upload, display, publish or create derivative works from any part of the Website and API or commercialise any information obtained from any part of the Website and API without prior written consent from us [...] You acknowledge and agree that you will: [...] h) not alter, modify, decompile, disassemble, reverse engineer, sublicense or change any software that underpins the Website and API, i) not purport to grant to a third party any right to access or use our Website and API except as permitted by us [...] You acknowledge that you must: a) not resupply the Website and API to third parties, or permit third parties to access the Website and API [...] You agree that you will only use and disclose any personal information that you access through the Website and API in a manner that would be permitted under the Privacy Act 1988 (Cth) by an APP entity

## Plan

- Pay: A$0
- You get: 20 credits
- Enough for: 20 pages

## Rate limit

- Per day: 50,000
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: nothing required. Optional: q, abn, nzbn, url, sector, type, type[not], email, stockcode, stockexchange, email[exists], phone, phone[exists], mobile, mobile[exists], countrycode, state, postcode, suburb, lga, tech_stack, latlong[radius], latlong[radiusnot], latlong[box], latlong[boxnot], anzsic, tags, founded_year[gte], founded_year[lte], staff[gte], staff[lte], views, locations.total, locations.state, locations.postcode, locations.suburb, locations.lga, locations.latlong[radius], locations.latlong[box], customer_reviews.google.score, customer_reviews.google.count, customer_reviews.facebook.score, customer_reviews.facebook.count, customer_reviews.productreview.score, customer_reviews.productreview.count, employee_reviews.glassdoor.score, employee_reviews.glassdoor.count, socials.facebook[exists], socials.instagram[exists], socials.tiktok[exists], socials.youtube[exists], socials.pinterest[exists], socials.linkedin[exists], directories.google_business[exists], directories.truelocal[exists], directories.yellowpages[exists], directories.yelp[exists], tracking, list, exclude_export.status, id, next_token, show
- Method: GET
- Path: /business/list

## About the plan

- Plan: Free
- Who can get it: anyone

## The 20 fields the plan's answer can hold

total results, more results available, next token, applied filters, business ID, name, legal name, website URL, initials, logo, country code, suburb, postcode, status, description, latitude, longitude, website, phone, mobile

## KnowFirst's plans (8)

- [KnowFirst, free](https://datacircle.dev/company-discovery-apis/knowfirst/free/llms.txt): $0.00 per 1,000, 38% complete
- [KnowFirst, A$120 monthly](https://datacircle.dev/company-discovery-apis/knowfirst/a-120-monthly/llms.txt): 38% complete
- [KnowFirst, A$216 monthly](https://datacircle.dev/company-discovery-apis/knowfirst/a-216-monthly/llms.txt): 38% complete
- [KnowFirst, A$600 monthly](https://datacircle.dev/company-discovery-apis/knowfirst/a-600-monthly/llms.txt): 38% complete
- [KnowFirst, A$720 yearly](https://datacircle.dev/company-discovery-apis/knowfirst/a-720-yearly/llms.txt): 38% complete
- [KnowFirst, A$1,296 yearly](https://datacircle.dev/company-discovery-apis/knowfirst/a-1296-yearly/llms.txt): 38% complete
- [KnowFirst, A$3,600 yearly](https://datacircle.dev/company-discovery-apis/knowfirst/a-3600-yearly/llms.txt): 38% complete
- [KnowFirst, contact us](https://datacircle.dev/company-discovery-apis/knowfirst/contact-us/llms.txt): 38% complete

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

- `GET /business/list`: [KnowFirst, free](https://datacircle.dev/company-discovery-apis/knowfirst/free/llms.txt)

## KnowFirst's APIs (6)

- [KnowFirst: company discovery API pricing, 8 plans](https://datacircle.dev/company-discovery-apis/knowfirst/free/llms.txt)
- [KnowFirst: company open jobs API pricing, 8 plans](https://datacircle.dev/company-open-job-apis/knowfirst/free/llms.txt)
- [KnowFirst: tech stack API pricing, 8 plans](https://datacircle.dev/company-technology-apis/knowfirst/free/llms.txt)
- [KnowFirst: people search API pricing, 8 plans](https://datacircle.dev/people-search-apis/knowfirst/free/llms.txt)
- [KnowFirst: people enrichment API pricing, 8 plans](https://datacircle.dev/person-enrichment-apis/knowfirst/free/llms.txt)
- [KnowFirst: company enrichment API pricing, 8 plans, GET /business/view/overview](https://datacircle.dev/company-enrichment-apis/knowfirst/free-get-business-view-overview/llms.txt)
- [KnowFirst: company enrichment API pricing, 8 plans, GET /business/enrich](https://datacircle.dev/company-enrichment-apis/knowfirst/free-get-business-enrich/llms.txt)

## KnowFirst: 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
- [JobDataAPI, $765 monthly](https://datacircle.dev/company-discovery-apis/jobdataapi/765-monthly/llms.txt): $0.0000074 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 2026-11-06.

- https://app.knowfirst.ai/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://cdn.knowfirst.ai/api/spec/knowfirst-v1.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://knowfirst.ai/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://knowfirst.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://knowfirst.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing