# Echoloc, free: Company discovery API

> Find every company using Snowflake, HubSpot, or any of 10,000+ technologies — ranked by usage. Each profile carries intent signals: what they’re adopting, evaluating, and replacing.

Echoloc's Beta plan for the company discovery API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. Echoloc's docs list 7: Description, Industry, Type and status, Technologies, Employees, Social profiles, Headquarters.
We haven't run Echoloc through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 1,165 plans for company discovery APIs by price. Half the plans cost $0.525 or less per 1,000 companies. [See the best free company discovery API plan.](https://datacircle.dev/best-company-discovery-api.txt)
[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. [Seltz's pay-as-you-go plan](https://datacircle.dev/company-discovery-apis/seltz/pay-as-you-go-pay-as-you-go-post-v1-search-search-base/llms.txt) costs the least for 10,000 companies a month: $0.03.
[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/echoloc/free
- [Company discovery API: the best of 100+ providers compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://echoloc.ai/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://api.echoloc.ai/api/corporate/v1/companies/by-technologies`
- API key: with the plan, on https://echoloc.ai/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://api.echoloc.ai/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing#/corporate/search_companies_by_technologies_api_corporate_v1_companies_by_technologies_post
- Sold by: Echoloc (https://echoloc.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 54%
- Description: ✓
- Industry: ✓
- Type and status: ✓
- Technologies: ✓
- Employees: ✓
- Social profiles: ✓
- Headquarters: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page of 100
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Get Company By Domain · List Technologies · List Countries · List Industries

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Find every company using Snowflake, HubSpot, or any of 10,000+ technologies — ranked by usage. Each profile carries intent signals: what they’re adopting, evaluating, and replacing.

## Data

- Freshness: 1 day
- Keep data: no limit
- Use data: You may use Echoloc data for: B2B sales prospecting and lead generation, Market research and competitive analysis, Investment research, Building products via our API (with an API subscription). You may NOT: Use the data to make employment decisions about individuals, Scrape, resell, or redistribute raw data without an API agreement, Attempt to identify or contact individual job applicants, Use the service for any illegal purpose, Reverse-engineer our systems or circumvent rate limits, Access the service with bots, scripts, or other automated means outside our official API. [...] You may integrate our data into your product (whitelabel) under your API agreement

## Plan

- Pay: $0
- You get: 100 requests a month
- Enough for: 100 pages a month
- Expires: resets on the 1st of each month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: technologies. Optional: match, country, industry, employees_min, employees_max, exclude_agencies, page, page_size
- Method: POST
- Path: /api/corporate/v1/companies/by-technologies

## About the plan

- Plan: Beta
- Who can get it: anyone who signs up for a free account: its key is waiting in the app under API

## The 34 fields the plan's answer can hold

company ID, name, domain, description, industry, company type, founded year, country, city, employee range minimum, employee range maximum, LinkedIn URL, open jobs count, jobs posted last 7 days, jobs posted last 30 days, jobs posted last 90 days, hiring velocity, hiring ratio, open leadership roles count, open roles by department, open roles by seniority, notable open roles, technologies, technology usage count, technologies in use, technologies adopting, technologies replacing, technologies evaluating, usage count, matched technologies, total results, current page, results per page, total pages

## Echoloc's plans (2)

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

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

- `POST /api/corporate/v1/companies/by-technologies`: [Echoloc, free](https://datacircle.dev/company-discovery-apis/echoloc/free/llms.txt)

## Echoloc's APIs (3)

- [Echoloc: company discovery API pricing, 2 plans](https://datacircle.dev/company-discovery-apis/echoloc/free/llms.txt)
- [Echoloc: company enrichment API pricing, 2 plans](https://datacircle.dev/company-enrichment-apis/echoloc/free/llms.txt)
- [Echoloc: tech stack API pricing, 2 plans](https://datacircle.dev/company-technology-apis/echoloc/free/llms.txt)

## Echoloc: company discovery API alternatives

- [Loopster, free](https://datacircle.dev/company-discovery-apis/loopster/free/llms.txt): $0.00 per 1,000, 23% complete, 1 day
- [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
- [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 2026-11-08.

- https://api.echoloc.ai/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://api.echoloc.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://echoloc.ai/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://echoloc.ai/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://echoloc.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://echoloc.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing