# Swarmhit, free: Company discovery API

> Search the company database by named filters.

Swarmhit's company discovery API on its Free trial plan. It costs $0.00 per 1,000 companies. It returns 8 of the 13 key fields we check: Description, Industry, Type and status, Employees, Social profiles, Headquarters, Funding, Revenue and budgets.
We haven't run Swarmhit 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 our benchmark.

- This page: https://datacircle.dev/company-discovery-apis/swarmhit/free
- [Company discovery API: 60+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://www.swarmhit.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://app.swarmhit.com/api/v1/database/companies/search`
- API key: with the plan, on https://www.swarmhit.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://developer.swarmhit.com/api-reference/database/searchCompaniesDatabase?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: Swarmhit (https://www.swarmhit.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-10-31

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: never
- Also pays for: Send a connection request · Message a connection · Send an InMail · Visit a profile · Follow a lead · Look up a profile · Like a post · Comment on a post · Start a LinkedIn search import · from the same budget: Search people in the database · Enrich a person · Enrich a company · Find a person's email · Find a person's phone · Find a lead's email or phone · Find emails or phones for many leads

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Search the company database by named filters.

## Data

- Freshness: 1 week
- Keep data: no limit
- Use data: You will not use Swarmhit to: Send unlawful, harassing, deceptive, or discriminatory messages. Impersonate another person or business or misrepresent your affiliation. Scrape, resell, or sublicense Swarmhit’s data, software, or AI outputs. Bypass the sending limits, safeguards, rate limits, or other technical controls we apply. Send messages to prospects in jurisdictions where you lack a lawful basis (for example, B2C contacts under GDPR or CASL without consent). [...] You own your customer content. You grant Swarmhit a worldwide, non-exclusive licence to host, transmit, and process that content strictly to provide the service. [...] Purchased, scraped, enriched, licensed, or publicly available data may be used only where Customer has assessed the source, rights, notice obligations, accuracy, and lawful basis for the intended use. [...] Customer must not: [...] bypass throttling, rate limits, safety controls, account limits, technical restrictions, or verification measures, use bots, scripts, or tools outside supported functionality to interfere with the Services, create excessive Accounts or use multiple Accounts to evade enforcement, probe, scan, or test Swarmhit systems without written authorization, use the Services in a way that degrades reliability for others.

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: at least one of filters.names, filters.domains, filters.industries, filters.countries, filters.headcountRanges, filters.minHeadcount, filters.maxHeadcount, filters.minGrowth12m, filters.foundedAfter, filters.foundedBefore, filters.minFundingUsd, filters.lastRoundTypes, filters.investors, filters.technologies. Optional: sort.key, sort.dir, limit, cursor
- Method: POST
- Path: /database/companies/search

## About the plan

- Plan: Free trial
- Who can get it: anyone at least 18 and authorized to bind their organization, with a LinkedIn account to connect as a sender

## The 26 fields the plan's answer can hold

ID, name, domain, website, LinkedIn URL, description, company type, founded year, industry, industries, employee count, employee count range, 12-month employee count growth, country, headquarters, total funding, last funding round amount, last funding round type, last funding round date, investors, follower count, open job count, estimated revenue minimum, estimated revenue maximum, next cursor, total results

## Swarmhit's plans (16)

- [Swarmhit, free](https://datacircle.dev/company-discovery-apis/swarmhit/free/llms.txt): $0.00 per 1,000, 62% complete, 1 week
- [Swarmhit, $16.90 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/16-90-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $59 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/59-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $94 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/94-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $139 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/139-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $199 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/199-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $319 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/319-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $539 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/539-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $859.90 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/859-90-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $1,099 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/1099-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $2,347.90 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/2347-90-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $3,635.90 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/3635-90-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $6,358.90 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/6358-90-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, $15,256.90 monthly](https://datacircle.dev/company-discovery-apis/swarmhit/15256-90-monthly/llms.txt): 62% complete, 1 week
- [Swarmhit, contact us, Cold email 5M+ sends](https://datacircle.dev/company-discovery-apis/swarmhit/contact-us-cold-email-5m-sends/llms.txt): 62% complete, 1 week
- [Swarmhit, contact us, LinkedIn senders 2,500+](https://datacircle.dev/company-discovery-apis/swarmhit/contact-us-linkedin-senders-2500/llms.txt): 62% complete, 1 week

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

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

## Swarmhit's APIs (8)

- [Swarmhit: LinkedIn profile API pricing, 8 plans](https://datacircle.dev/linkedin-profile-apis/swarmhit/free/llms.txt)
- [Swarmhit: LinkedIn people search API pricing, 8 plans](https://datacircle.dev/linkedin-people-search-apis/swarmhit/free/llms.txt)
- [Swarmhit: company discovery API pricing, 16 plans](https://datacircle.dev/company-discovery-apis/swarmhit/free/llms.txt)
- [Swarmhit: company enrichment API pricing, 16 plans](https://datacircle.dev/company-enrichment-apis/swarmhit/free/llms.txt)
- [Swarmhit: people search API pricing, 16 plans](https://datacircle.dev/people-search-apis/swarmhit/free/llms.txt)
- [Swarmhit: people enrichment API pricing, 16 plans](https://datacircle.dev/person-enrichment-apis/swarmhit/free/llms.txt)
- [Swarmhit: email finder API pricing, 16 plans, POST /leads/{id}/enrich](https://datacircle.dev/find-email-apis/swarmhit/free-trial-post-leads-id-enrich/llms.txt)
- [Swarmhit: email finder API pricing, 16 plans, POST /database/people/find-email](https://datacircle.dev/find-email-apis/swarmhit/free-trial-post-database-people-find-email/llms.txt)
- [Swarmhit: email finder API pricing, 16 plans, POST /leads/enrich](https://datacircle.dev/find-email-apis/swarmhit/free-trial-post-leads-enrich/llms.txt)
- [Swarmhit: phone finder API pricing, 16 plans, POST /leads/{id}/enrich](https://datacircle.dev/find-phone-apis/swarmhit/free-trial-post-leads-id-enrich/llms.txt)
- [Swarmhit: phone finder API pricing, 16 plans, POST /database/people/find-phone](https://datacircle.dev/find-phone-apis/swarmhit/free-trial-post-database-people-find-phone/llms.txt)
- [Swarmhit: phone finder API pricing, 16 plans, POST /leads/enrich](https://datacircle.dev/find-phone-apis/swarmhit/free-trial-post-leads-enrich/llms.txt)

## Swarmhit: 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, 54% complete, 1 day
- [Captapi, free](https://datacircle.dev/company-discovery-apis/captapi/free/llms.txt): $0.00 per 1,000, 38% 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 2026-10-31.

- https://app.swarmhit.com/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://developer.swarmhit.com/database?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.swarmhit.com/acceptable-use?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.swarmhit.com/channels/linkedin?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.swarmhit.com/linkedin-api/profile-visit?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.swarmhit.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://www.swarmhit.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing