# YourAITools, free: Tech stack API

> What is this website built with? CMS, ecommerce, JS framework, hosting/CDN, analytics, ad pixels, payments, plus email provider, DNS host and verified SaaS from public DNS, with versions, confidence and evidence.

YourAITools's Free preview plan for the tech stack API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. YourAITools's docs list 2: Technology, Categories.
YourAITools limits how many calls you get but gives no number.
In [our tech stack API benchmark](https://datacircle.dev/best-tech-stack-api.txt), this plan scores 61.9 out of 100. YourAITools ranks 5th of 44 providers.
We rank 450 plans for tech stack APIs by price. Half the plans cost $7.155 or less per 1,000 companies. This plan and 2 others tie for the lowest price per 1,000 companies of the 450 plans. [See the best free tech stack API plan.](https://datacircle.dev/best-tech-stack-api.txt)
[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 cl0q's $50 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 the Datacircle benchmark.

- This page: https://datacircle.dev/company-technology-apis/youraitools/free
- [Company technologies API: tech stack APIs compared](https://datacircle.dev/best-tech-stack-api.txt)
- Get it: https://api.youraitools.co/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Request: `GET https://api.youraitools.co/stackdetect/v1/preview`
- API key: not needed
- Its API docs: https://api.youraitools.co/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing#/paths/~1stackdetect~1v1~1preview
- Sold by: YourAITools (https://youraitools.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 15%
- Technology: ✓
- Categories: ✓

## Score

- Overall score: 61.9
- Price score: 100
- Accuracy score: 30
- Cost to get started score: 100
- Bundle score: 0
- Performance score: 61

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: What is this website built with? CMS, ecommerce, JS framework, hosting/CDN, analytics, ad pixels, payments, plus email provider, DNS host and verified SaaS from public DNS, with versions, confidence and evidence.

## Data

- Freshness: live
- Keep data: no limit
- Use data: Don't use the site or APIs to break the law, attack or overload our services or anyone else's, get around rate limits or payments, or scrape the site in a way that harms it. [...] Everything the site and the APIs return is informational: listings, scores, verdicts, verification checks, page reads and screening results. Automated checks can be wrong or incomplete. Use them as one input, not as the only basis for a decision.

## Plan

- Pay: $0

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.23 s

## The call

- You send: url
- Method: GET
- Path: /stackdetect/v1/preview

## About the plan

- Plan: Free preview
- Who can get it: anyone, no account or API key, limited per IP

## The 2 fields the plan's answer can hold

technology name, technology categories

## YourAITools's plans (7)

- [YourAITools, free](https://datacircle.dev/company-technology-apis/youraitools/free/llms.txt): $0.00 per 1,000, 15% complete, live
- [YourAITools, pay as you go](https://datacircle.dev/company-technology-apis/youraitools/pay-as-you-go/llms.txt): $3.00 per 1,000, 31% complete, live
- [YourAITools, $0.01 pack](https://datacircle.dev/company-technology-apis/youraitools/0-01-pack/llms.txt): $3.00 per 1,000, 31% complete, live
- [YourAITools, $1 pack](https://datacircle.dev/company-technology-apis/youraitools/1-pack/llms.txt): $3.00 per 1,000, 31% complete, live
- [YourAITools, $5 pack](https://datacircle.dev/company-technology-apis/youraitools/5-pack/llms.txt): $2.727 per 1,000, 31% complete, live
- [YourAITools, $20 pack](https://datacircle.dev/company-technology-apis/youraitools/20-pack/llms.txt): $3.00 per 1,000, 31% complete, live
- [YourAITools, $50 pack](https://datacircle.dev/company-technology-apis/youraitools/50-pack/llms.txt): $3.00 per 1,000, 31% complete, live

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

- `GET /stackdetect/v1/preview`: [YourAITools, free](https://datacircle.dev/company-technology-apis/youraitools/free/llms.txt)
- `GET /stackdetect/v1/detect`: [YourAITools, pay as you go](https://datacircle.dev/company-technology-apis/youraitools/pay-as-you-go/llms.txt)

## YourAITools's APIs (4)

- [YourAITools: tech stack API pricing, 7 plans](https://datacircle.dev/company-technology-apis/youraitools/free/llms.txt)
- [YourAITools: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/youraitools/free/llms.txt)
- [YourAITools: web scraping API pricing, 7 plans](https://datacircle.dev/web-scraping-apis/youraitools/free/llms.txt)
- [YourAITools: domain WHOIS API pricing, 6 plans](https://datacircle.dev/domain-whois-apis/youraitools/pay-as-you-go/llms.txt)

## YourAITools: tech stack API alternatives

- [Botoi, free](https://datacircle.dev/company-technology-apis/botoi/free/llms.txt): $0.00 per 1,000, 23% complete, live
- [RichAPI, free, Sandbox, POST /web_tech_stack](https://datacircle.dev/company-technology-apis/richapi/free/llms.txt): $0.00 per 1,000, 8% complete, live
- [ReefAPI, free](https://datacircle.dev/company-technology-apis/reefapi/free/llms.txt): $0.00 per 1,000, 23% complete, live
- [upAPI, free](https://datacircle.dev/company-technology-apis/upapi/free/llms.txt): $0.00 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 2026-11-09.

- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://api.youraitools.co/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://api.youraitools.co/credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://api.youraitools.co/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://api.youraitools.co/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://api.youraitools.co/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://youraitools.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://youraitools.co/refund-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://youraitools.co/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing