# AI Website Detector, free: Tech stack API

> Detect AI builders, tech stacks, hosting, and confidence scores for any URL — programmatically.

AI Website Detector's tech stack API on its Free plan. It costs $0.00 per 1,000 companies. It returns 1 of the 13 key fields we check: Technology.
We haven't run AI Website Detector through [our tech stack API benchmark](https://datacircle.dev/best-tech-stack-api.txt) yet.
This plan is free. We rank 287 plans for tech stack APIs by price. Half the plans cost $9.98 per 1,000 companies or less.
[Botoi's $199 monthly plan](https://datacircle.dev/company-technology-apis/botoi/199-monthly/llms.txt) costs the least per 1,000 companies: as little as $0.0066. Botoi's $199 monthly plan covers up to 1,000,000 companies a day.
[GetProspect's $49 monthly plan](https://datacircle.dev/company-technology-apis/getprospect/49-monthly/llms.txt) covers any number of companies. GetProspect's $49 monthly plan costs less up front than Botoi's $199 monthly plan.
[JobsPipe](https://datacircle.dev/company-technology-apis/jobspipe/149-monthly-growth-post-v1-stack-scan/llms.txt), [DetectZeStack](https://datacircle.dev/company-technology-apis/detectzestack/79-monthly-mega-get-analyze/llms.txt) and [GetProspect](https://datacircle.dev/company-technology-apis/getprospect/49-monthly/llms.txt) are the best tech stack API providers in our benchmark.

- This page: https://datacircle.dev/company-technology-apis/ai-website-detector/free
- [Tech stack API: find a company's technologies](https://datacircle.dev/best-tech-stack-api.txt)
- Get it: https://aiwebsitedetector.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Request: `GET https://www.aiwebsitedetector.com/api/v1/scan`
- API key: with the plan, on https://aiwebsitedetector.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Its API docs: https://aiwebsitedetector.com/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Sold by: AI Website Detector (https://aiwebsitedetector.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 8%
- Technology: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: 1 hour
- Also pays for: nothing else

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Detect AI builders, tech stacks, hosting, and confidence scores for any URL — programmatically.

## Data

- Freshness: live
- Keep data: no limit
- Use data: You may use the Service only for lawful purposes. You must not: Submit URLs that you do not have permission to scan or analyse. Attempt to reverse-engineer, scrape, or harvest data from the Service at scale without written permission. Use automated tools, bots, or scripts to submit scans beyond the published rate limits. Use the API or scan results to build a competing service that substantially replicates AI Website Detector. Circumvent rate limits, access controls, or other technical measures. Use the Service to scan websites for the purpose of phishing, fraud, or any other illegal activity. Transmit malware, spam, or any harmful content through the Service. [...] Scan results returned by the API or displayed on the website may be used for personal or commercial purposes, provided they are not resold as a standalone data product and attribution to AI Website Detector is included where reasonably practicable.

## Plan

- Pay: €0
- You get: 50 requests a month
- Enough for: 50 calls a month
- Expires: limits reset on the 1st of each month

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url
- Method: GET
- Path: /scan

## About the plan

- Plan: Free
- Who can get it: anyone with a registered account, for individual, non-commercial use

## The 10 fields the plan's answer can hold

resolved URL, website builder, website builder slug, website builder category, detection confidence, AI-native, technologies, hosting provider, site type, cached

## AI Website Detector's plans (5)

- [AI Website Detector, free](https://datacircle.dev/company-technology-apis/ai-website-detector/free/llms.txt): $0.00 per 1,000, 8% complete, live
- [AI Website Detector, €5 pack](https://datacircle.dev/company-technology-apis/ai-website-detector/5-pack/llms.txt): $5.627 per 1,000, 8% complete, live
- [AI Website Detector, €12 monthly](https://datacircle.dev/company-technology-apis/ai-website-detector/12-monthly/llms.txt): $4.501 per 1,000, 8% complete, live
- [AI Website Detector, €49 monthly](https://datacircle.dev/company-technology-apis/ai-website-detector/49-monthly/llms.txt): $2.757 per 1,000, 8% complete, live
- [AI Website Detector, €149 monthly](https://datacircle.dev/company-technology-apis/ai-website-detector/149-monthly/llms.txt): $1.677 per 1,000, 8% complete, live

## AI Website Detector's calls (1)

- `GET /scan`: [AI Website Detector, free](https://datacircle.dev/company-technology-apis/ai-website-detector/free/llms.txt)

## AI Website Detector's APIs (1)

- [AI Website Detector: tech stack API pricing, 5 plans](https://datacircle.dev/company-technology-apis/ai-website-detector/free/llms.txt)

## AI Website Detector: tech stack API alternatives

- [Bright Data, top-up](https://datacircle.dev/company-technology-apis/bright-data/top-up/llms.txt): $1.50 per 1,000, 38% complete, live
- [1Lookup, $19,990 yearly, Enterprise (annual), POST /tech-stack-lookup](https://datacircle.dev/company-technology-apis/1lookup/19990-yearly-enterprise-annual-post-tech-stack-lookup/llms.txt): $1.666 per 1,000, 23% complete, live
- [StackPeek, $9 monthly, Starter, GET /api/v1/detect](https://datacircle.dev/company-technology-apis/stackpeek/9-monthly-starter-get-api-v1-detect/llms.txt): $1.80 per 1,000, 23% complete, live
- [ReefAPI, $1,200 yearly](https://datacircle.dev/company-technology-apis/reefapi/1200-yearly/llms.txt): $2.00 per 1,000, 23% 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 2026-11-04.

- https://aiwebsitedetector.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://aiwebsitedetector.com/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://aiwebsitedetector.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://aiwebsitedetector.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing