# TechnologyChecker, free, Free, POST /v1/technology-lookup-live: Company technology API

> Detect technologies on any website in real-time using multiple detection modes. Two modes available: browser (Puppeteer headless Chrome, 5-22s) and fetch (HTTP only, 1-3s).

TechnologyChecker's company technology API on its Free plan, $0.00 per 1,000 companies. 3 of the 13 key fields: Technology, Categories, When and where seen.

- This page: https://datacircle.dev/company-technology-apis/technologychecker/free-free-post-v1-technology-lookup-live
- Get it: https://technologychecker.io/pricing
- Its API docs: https://technologychecker.io/docs/api-reference/live-detection/technology-lookup-live-api
- Sold by: TechnologyChecker (https://technologychecker.io)
- Checked: 2026-10-20

## In the answer

- Completeness: 23%
- Technology: ✓
- Categories: ✓
- When and where seen: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: call
- Also pays for: Signal types index · Alerts: create, read, edit, test, delivery log · Audience create-from-upload, read, rename, delete, members · Lead list search, tech map, count preview, list, preview, export, delete · Usage, credits and key management · from the same budget: Domain lookup · Domain history · Domain tech changes · Find domains by technology · Technology lookup / search · Technology stats and trends · Market share · Get companies by technology · Company lookup · Company search · Batch company lookup (1 per domain) · Adoption, churn, switch and whitespace signals · Audience technology report · Audience breakdown · Segment technology stats · Build a computed audience · AI extractor · Lead list creation (1 per delivered row) · Signal CSV export (1 per exported row) · Churn validation · Audience refresh crawl · Alert crawl cadence

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Detect technologies on any website in real-time using multiple detection modes. Two modes available: browser (Puppeteer headless Chrome, 5-22s) and fetch (HTTP only, 1-3s).

## Data

- Freshness: live
- 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: 20 calls a month
- Expires: at the monthly reset, credits don't roll over

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url. Optional: options.mode, options.interact
- Method: POST
- Path: /v1/technology-lookup-live

## 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

requested URL, final URL, detection mode, technologies, technology ID, technology slug, technology description, technology confidence, technology versions, technology icon, technology website, CPE, technology category, technology category group, scan statistics

## TechnologyChecker's plans (6)

- [TechnologyChecker, free, Free, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/free-free-post-v1-technology-lookup-live/llms.txt): $0.00 per 1,000, 23% complete, live
- [TechnologyChecker, $89 monthly, Pro, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/89-monthly-pro-post-v1-technology-lookup-live/llms.txt): $44.50 per 1,000, 23% complete, live
- [TechnologyChecker, $249 monthly, Scale, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/249-monthly-scale-post-v1-technology-lookup-live/llms.txt): $24.90 per 1,000, 23% complete, live
- [TechnologyChecker, $890 yearly, Pro, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/890-yearly-pro-post-v1-technology-lookup-live/llms.txt): $37.083 per 1,000, 23% complete, live
- [TechnologyChecker, $2,490 yearly, Scale, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/2490-yearly-scale-post-v1-technology-lookup-live/llms.txt): $20.75 per 1,000, 23% complete, live
- [TechnologyChecker, contact us, Enterprise, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/contact-us-enterprise-post-v1-technology-lookup-live/llms.txt): 23% complete, live

## TechnologyChecker's calls (5)

- `GET /v1/domain/{domain}/changes`: [TechnologyChecker, free, Free, GET /v1/domain/{domain}/changes](https://datacircle.dev/company-technology-apis/technologychecker/free-free-get-v1-domain-domain-changes/llms.txt)
- `GET /v1/domain/{domain}/history`: [TechnologyChecker, free, Free, GET /v1/domain/{domain}/history](https://datacircle.dev/company-technology-apis/technologychecker/free-free-get-v1-domain-domain-history/llms.txt)
- `GET /v1/domain/{domain}`: [TechnologyChecker, free, Free, GET /v1/domain/{domain}](https://datacircle.dev/company-technology-apis/technologychecker/free-free-get-v1-domain-domain/llms.txt)
- `POST /v1/technology-lookup-live`: [TechnologyChecker, free, Free, POST /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/free-free-post-v1-technology-lookup-live/llms.txt)
- `GET /v1/technology-lookup-live`: [TechnologyChecker, free, Free, GET /v1/technology-lookup-live](https://datacircle.dev/company-technology-apis/technologychecker/free-free-get-v1-technology-lookup-live/llms.txt)

## Similar plans of other providers

- [Wappalyzer, $4,500 yearly](https://datacircle.dev/company-technology-apis/wappalyzer/4500-yearly/llms.txt): $18.75 per 1,000, 85% 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 2026-10-20.

- https://technologychecker.io/docs/api-reference/credits
- https://technologychecker.io/docs/api-reference/live-detection/technology-lookup-live-api
- 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