# TechnologyChecker, free, POST /v1/companies/batch: Company enrichment API

> Look up company data for multiple domains in a single request (up to 100). Returns full company details including description and specialties. Costs 1 credit per domain.

TechnologyChecker's company enrichment API on its Free plan. It costs $0.00 per 1,000 companies. It returns 6 of the 13 key fields we check: Description, Industry, Type and status, Employees, Social profiles, Headquarters.
We rank 843 plans by price. [Extruct's $49 monthly plan](https://datacircle.dev/company-enrichment-apis/extruct/49-monthly/llms.txt) costs the least per 1,000 companies. Extruct's company enrichment API costs nothing beyond the plan price.
[GetProspect](https://datacircle.dev/company-enrichment-apis/getprospect/49-monthly-starter-post-v2-companies-enrich/llms.txt), [ScrapeUnblocker](https://datacircle.dev/company-enrichment-apis/scrapeunblocker/pay-as-you-go-pay-as-you-go-post-companies-crunchbase/llms.txt) and [Hunter](https://datacircle.dev/company-enrichment-apis/hunter/299-monthly/llms.txt) are the best company enrichment API providers in our benchmark.

- This page: https://datacircle.dev/company-enrichment-apis/technologychecker/free-post-v1-companies-batch
- [Best company enrichment API in 2026](https://datacircle.dev/best-company-enrichment-api.txt)
- Get it: https://technologychecker.io/pricing
- Request: `POST https://api.technologychecker.io/v1/companies/batch`
- API key: with the plan, on https://technologychecker.io/pricing
- Its API docs: https://technologychecker.io/docs/api-reference/company-data/batch-company-lookup-api
- Sold by: TechnologyChecker (https://technologychecker.io)
- Checked: 2026-10-20

## In the answer

- Completeness: 46%
- Description: ✓
- Industry: ✓
- Type and status: ✓
- Employees: ✓
- Social profiles: ✓
- Headquarters: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Signal types index · List alerts API · Create alert API · Get alert API · Update alert API · Delete alert API · Test alert delivery API: roughly 10 per hour per key · Alert delivery log API · Create audience API: uploads are free · List audiences API · Get audience API · Update audience API: renaming is free · Delete audience API · List audience members API · Search technologies for lead lists API · Technology ID map API · Preview lead list count API · List lead lists API · Preview lead list API · Export lead list API · Delete lead list API · from the same budget: Domain lookup · Domain history · Domain tech changes · Find domains by technology · Technology lookup / search · Technology stats API · Technology usage trends API · Market share · Get companies by technology · Company lookup · Company search · Adoption and churn signals API · Competitive switch API · Category whitespace API · Audience technology report · Audience breakdown · Segment technology stats · Build a computed audience · Live technology lookup · AI extractor · Create lead list API (1 per delivered row) · Export signals to CSV API (1 per exported row) · Churn validation · Audience refresh crawl · Alert crawl cadence

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Look up company data for multiple domains in a single request (up to 100). Returns full company details including description and specialties. Costs 1 credit per domain.

## Data

- Freshness: stored
- Keep data: Cached data must be refreshed at intervals consistent with your subscription plan
- Use data: You may integrate API data into your internal business applications, CRM systems, and workflows [...] You may not redistribute raw API data to third parties or make it publicly accessible without our written consent [...] You may not use API data to create a competing technology detection service or database [...] You must comply with all applicable data protection laws when processing personal data obtained through the API [...] The following activities are strictly prohibited: [...] Reselling, redistributing, sublicensing, or otherwise making the Service or its data available to third parties without our prior written consent [...] Using the Service or its data to build a competing product, service, or database [...] Using the Service to send unsolicited commercial communications (spam), including bulk emails, cold calls, or messages to contacts obtained through the Service without a legitimate legal basis

## Plan

- Pay: $0
- You get: 100 credits a month
- Enough for: 100 results a month
- Expires: at the monthly reset, credits don't roll over

## Rate limit

- Per second: 1
- Batch: 100

## Speed

- Answer: in the call

## The call

- You send: domains
- Method: POST
- Path: /v1/companies/batch

## About the plan

- Plan: Free
- Who can get it: anyone 18 or over, for individual evaluation: the free plan may not be used for commercial-scale operations

## The 15 fields the plan's answer can hold

domain, subdomains, company name, LinkedIn URL, industry, industry code, country, city, state, founded, employee count range, company type, associated members, description, specialties

## TechnologyChecker's plans (6)

- [TechnologyChecker, free, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/free-post-v1-companies-batch/llms.txt): $0.00 per 1,000, 46% complete, stored
- [TechnologyChecker, $89 monthly, Pro, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/89-monthly-pro-post-v1-companies-batch/llms.txt): $8.90 per 1,000, 46% complete, stored
- [TechnologyChecker, $249 monthly, Scale, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/249-monthly-scale-post-v1-companies-batch/llms.txt): $4.98 per 1,000, 46% complete, stored
- [TechnologyChecker, $890 yearly, Pro, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/890-yearly-pro-post-v1-companies-batch/llms.txt): $7.417 per 1,000, 46% complete, stored
- [TechnologyChecker, $2,490 yearly, Scale, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/2490-yearly-scale-post-v1-companies-batch/llms.txt): $4.15 per 1,000, 46% complete, stored
- [TechnologyChecker, contact us, Enterprise, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/contact-us-enterprise-post-v1-companies-batch/llms.txt): 46% complete, stored

## TechnologyChecker's calls for this API (2)

- `POST /v1/companies/batch`: [TechnologyChecker, free, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/free-post-v1-companies-batch/llms.txt)
- `GET /v1/company/{domain}`: [TechnologyChecker, free, GET /v1/company/{domain}](https://datacircle.dev/company-enrichment-apis/technologychecker/free-get-v1-company-domain/llms.txt)

## TechnologyChecker's APIs (3)

- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/signals/{type}](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-signals-type/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/signals/whitespace](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-signals-whitespace/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/signals/switch](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-signals-switch/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, POST /v1/leads/create](https://datacircle.dev/company-discovery-apis/technologychecker/free-post-v1-leads-create/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/signals/{type}/export](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-signals-type-export/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/technology/name/{name}/domains](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-technology-name-name-domains/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-technology-id-companies/llms.txt)
- [TechnologyChecker: company discovery API pricing, 6 plans, GET /v1/companies](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-companies/llms.txt)
- [TechnologyChecker: company enrichment API pricing, 6 plans, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/technologychecker/free-post-v1-companies-batch/llms.txt)
- [TechnologyChecker: tech stack API pricing, 6 plans, GET /v1/domain/{domain}/changes](https://datacircle.dev/company-technology-apis/technologychecker/free-get-v1-domain-domain-changes/llms.txt)
- [TechnologyChecker: tech stack API pricing, 6 plans, GET /v1/domain/{domain}/history](https://datacircle.dev/company-technology-apis/technologychecker/free-get-v1-domain-domain-history/llms.txt)
- [TechnologyChecker: tech stack API pricing, 6 plans, GET /v1/domain/{domain}](https://datacircle.dev/company-technology-apis/technologychecker/free-get-v1-domain-domain/llms.txt)
- [TechnologyChecker: tech stack API pricing, 6 plans, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/free-free-post-v1-technology-lookup-live/llms.txt)
- [TechnologyChecker: tech stack API pricing, 6 plans, GET /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/free-free-get-v1-technology-lookup-live/llms.txt)

## TechnologyChecker: company enrichment API alternatives

- [Skrapp, $999 monthly, Enterprise 250K, GET /api/v3/companies/enrich, Company enrich](https://datacircle.dev/company-enrichment-apis/skrapp/999-monthly-enterprise-250k-get-api-v3-companies-enrich-company-enrich/llms.txt): $3.996 per 1,000, 100% complete, stored
- [Parsers VC, $999 monthly, Enterprise, GET /startups, List startups filtered by domain, name or website, full](https://datacircle.dev/company-enrichment-apis/parsers-vc/999-monthly-enterprise-get-startups-list-startups-filtered-by-domain-name-or-website-full/llms.txt): $3.996 per 1,000, 62% complete, stored
- [The Swarm, $96,000 yearly](https://datacircle.dev/company-enrichment-apis/the-swarm/96000-yearly/llms.txt): $4.00 per 1,000, 77% complete, stored
- [Clearout, $1,000 pack, 500,000 credits, GET /reverse_lookup/domain](https://datacircle.dev/company-enrichment-apis/clearout/1000-pack-500000-credits-get-reverse-lookup-domain/llms.txt): $4.00 per 1,000, 31% 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 2026-10-20.

- https://technologychecker.io/docs/api-reference/company-data/batch-company-lookup-api
- https://technologychecker.io/docs/api-reference/credits
- https://technologychecker.io/docs/api-reference/openapi.json
- https://technologychecker.io/docs/api-reference/rate-limits
- https://technologychecker.io/pricing
- https://technologychecker.io/terms-of-use