# mySDR, free: Company discovery API

> Returns up to `limit` companies (10 unless you say otherwise, at most 25) that use one of your technologies, with the evidence per company: how sure the match is, in how many job posts it appeared, and when it was first and last seen.

mySDR's Free plan for the company discovery API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. mySDR's docs list 4: Industry, Technologies, Social profiles, Headquarters.
We haven't run mySDR through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 1,326 plans for company discovery APIs by price. Half the plans cost $0.498 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/mysdr/free
- [Company discovery API in 2026: the best of 100+ compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://mysdr.app/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://mysdr.app/api/v1/technologies/companies`
- API key: with the plan, on https://mysdr.app/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://mysdr.app/docs/api-reference/find-companies-using-technology?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: mySDR (https://mysdr.app?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 31%
- Industry: ✓
- Technologies: ✓
- Social profiles: ✓
- Headquarters: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: 24 hours
- Also pays for: from the same budget: Enrich People · Search People · Find Phone · Reverse Email Lookup · Enrich Companies · Search Companies · Get Company Tech Stack · Start a search · Start a LinkedIn sequence

## Overage

- Units cap: hard

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Returns up to `limit` companies (10 unless you say otherwise, at most 25) that use one of your technologies, with the evidence per company: how sure the match is, in how many job posts it appeared, and when it was first and last seen.

## Data

- Countries: Worldwide
- Keep data: no limit
- Use data: You use mySDR lawfully and only for business-to-business prospecting. In particular, you: have a legal basis (usually legitimate interest) to process the personal data of the people you contact, honour opt-outs and objections, and give the information the GDPR requires, follow the anti-spam and e-privacy rules of the countries where you send messages, remain responsible for your LinkedIn account and its use under LinkedIn's terms [...], do not resell, publish or redistribute data from mySDR as a dataset, and do not use it to build a competing product, do not process sensitive data (health, religion, politics and similar), harass people, or send misleading content, do not get around rate limits, credit checks or security, or overload the service.

## Plan

- Pay: €0
- You get: 100 credits
- Enough for: about 33 results, once
- Expires: 30 days

## Rate limit

- Per second: 1
- Concurrent: 3
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: technologies. Optional: countries, company_sizes, exclude_domains, limit, cursor, max_credits, Idempotency-Key header
- Method: POST
- Path: /technologies/companies

## About the plan

- Plan: Free
- Who can get it: businesses, for business-to-business prospecting ("mySDR is for businesses. Do not use it as a consumer.")

## The 18 fields the plan's answer can hold

company ID, name, domain, LinkedIn URL, country code, industry, technologies, technology slug, technology name, confidence, first seen on, last seen on, jobs mentioning, observed at, credits charged, total results, has more, search ID

## mySDR's plans (13)

- [mySDR, free](https://datacircle.dev/company-discovery-apis/mysdr/free/llms.txt): $0.00 per 1,000, 31% complete
- [mySDR, €27 monthly](https://datacircle.dev/company-discovery-apis/mysdr/27-monthly/llms.txt): $182.299 per 1,000, 31% complete
- [mySDR, €38 monthly](https://datacircle.dev/company-discovery-apis/mysdr/38-monthly/llms.txt): $171.046 per 1,000, 31% complete
- [mySDR, €49 monthly](https://datacircle.dev/company-discovery-apis/mysdr/49-monthly/llms.txt): $165.419 per 1,000, 31% complete
- [mySDR, €71 monthly](https://datacircle.dev/company-discovery-apis/mysdr/71-monthly/llms.txt): $159.793 per 1,000, 31% complete
- [mySDR, €93 monthly](https://datacircle.dev/company-discovery-apis/mysdr/93-monthly/llms.txt): $156.979 per 1,000, 31% complete
- [mySDR, €220 monthly](https://datacircle.dev/company-discovery-apis/mysdr/220-monthly/llms.txt): $148.54 per 1,000, 31% complete
- [mySDR, €405 monthly](https://datacircle.dev/company-discovery-apis/mysdr/405-monthly/llms.txt): $136.724 per 1,000, 31% complete
- [mySDR, €585 monthly](https://datacircle.dev/company-discovery-apis/mysdr/585-monthly/llms.txt): $131.66 per 1,000, 31% complete
- [mySDR, €935 monthly](https://datacircle.dev/company-discovery-apis/mysdr/935-monthly/llms.txt): $126.259 per 1,000, 31% complete
- [mySDR, €1,745 monthly](https://datacircle.dev/company-discovery-apis/mysdr/1745-monthly/llms.txt): $117.819 per 1,000, 31% complete
- [mySDR, €3,240 monthly](https://datacircle.dev/company-discovery-apis/mysdr/3240-monthly/llms.txt): $109.379 per 1,000, 31% complete
- [mySDR, contact us](https://datacircle.dev/company-discovery-apis/mysdr/contact-us/llms.txt): 31% complete

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

- `POST /technologies/companies`: [mySDR, free](https://datacircle.dev/company-discovery-apis/mysdr/free/llms.txt)

## mySDR's APIs (9)

- [mySDR: LinkedIn company data API pricing, 13 plans](https://datacircle.dev/linkedin-company-profile-apis/mysdr/free/llms.txt)
- [mySDR: LinkedIn company search API pricing, 13 plans](https://datacircle.dev/linkedin-company-search-apis/mysdr/free/llms.txt)
- [mySDR: LinkedIn profile API pricing, 13 plans](https://datacircle.dev/linkedin-profile-apis/mysdr/free/llms.txt)
- [mySDR: LinkedIn people search API pricing, 13 plans](https://datacircle.dev/linkedin-people-search-apis/mysdr/free/llms.txt)
- [mySDR: company discovery API pricing, 13 plans](https://datacircle.dev/company-discovery-apis/mysdr/free/llms.txt)
- [mySDR: tech stack API pricing, 13 plans](https://datacircle.dev/company-technology-apis/mysdr/free/llms.txt)
- [mySDR: phone finder API pricing, 13 plans](https://datacircle.dev/find-phone-apis/mysdr/free/llms.txt)
- [mySDR: reverse email lookup API pricing, 13 plans](https://datacircle.dev/reverse-email-lookup-apis/mysdr/free/llms.txt)
- [mySDR: email finder API pricing, 13 plans, POST /person/enrich, Enrich People](https://datacircle.dev/find-email-apis/mysdr/free-post-person-enrich-enrich-people/llms.txt)
- [mySDR: email finder API pricing, 13 plans, POST /person/enrich, Enrich People, work email](https://datacircle.dev/find-email-apis/mysdr/free-post-person-enrich-enrich-people-work-email/llms.txt)

## mySDR: company discovery API alternatives

- [Lusha, $737.40 monthly, Premium, 7,000 credits a month, POST /v3/companies/prospecting, Prospecting Companies, full](https://datacircle.dev/company-discovery-apis/lusha/737-40-monthly-premium-7000-credits-a-month-post-v3-companies-prospecting-prospecting-companies-full/llms.txt): $109.557 per 1,000, 31% complete, 1 week
- [Layrcake, top-up from $20, Top-up, POST /v1/find_companies, find_companies, hiring](https://datacircle.dev/company-discovery-apis/layrcake/top-up-from-20-top-up-post-v1-find-companies-find-companies-hiring/llms.txt): $110.00 per 1,000, 54% complete
- [NordicContacts, €49 monthly](https://datacircle.dev/company-discovery-apis/nordiccontacts/49-monthly/llms.txt): $110.279 per 1,000, 31% complete, 3 months
- [Findymail, $5,490 yearly, Scale 50K, POST /api/intellimatch/search, Search leads, full](https://datacircle.dev/company-discovery-apis/findymail/5490-yearly-scale-50k-post-api-intellimatch-search-search-leads-full/llms.txt): $110.715 per 1,000, 31% 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 2026-11-10.

- https://mysdr.app/docs/api-reference/enrich-people?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://mysdr.app/docs/api-reference/find-companies-using-technology.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://mysdr.app/docs/api/credits-and-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://mysdr.app/docs/enrichment/company-to-leads?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://mysdr.app/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://mysdr.app/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing