# TidyTools, free: Tech stack API

> Frameworks, CMS, hosting, CDN, analytics and email services of a website, with the evidence for each.

TidyTools's BASIC plan for the tech stack API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. TidyTools's docs list 3: Technology, Categories, When and where seen.
We haven't run TidyTools through [our tech stack API benchmark](https://datacircle.dev/best-tech-stack-api.txt) yet.
This plan is free. We rank 450 plans for tech stack APIs by price. Half the plans cost $7.155 or less per 1,000 companies. [See the best free tech stack API plan.](https://datacircle.dev/best-tech-stack-api.txt)
[cl0q's $50 monthly plan](https://datacircle.dev/company-technology-apis/cl0q/50-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: $0.0042. [Enterno's ₽2,511 yearly plan](https://datacircle.dev/company-technology-apis/enterno/2511-yearly-explorer-get-api-v4-cms/llms.txt) costs the least for 10,000 companies a month: about $2.50.
[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/tidytools/free
- [Company technologies API: tech stack APIs compared](https://datacircle.dev/best-tech-stack-api.txt)
- Get it: https://rapidapi.com/tidytools/api/tech-stack-detector2/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Request: `POST https://tech-stack-detector2.p.rapidapi.com/api/v1/techstack`
- API key: with the plan, on https://rapidapi.com/tidytools/api/tech-stack-detector2/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Its API docs: https://tools.yukai.uk/openapi/tech-stack-detection.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing#/paths/~1api~1v1~1techstack
- Sold by: TidyTools (https://tools.yukai.uk?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing)
- Checked: 2026-11-09

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Frameworks, CMS, hosting, CDN, analytics and email services of a website, with the evidence for each.

## Data

- Freshness: live
- Keep data: no limit
- Use data: Use the tools only for lawful purposes and only on data you are allowed to process. You are responsible for how you use the results, including personal data and the terms of the websites you query. [...] Do not use the service to attack, overload or break into systems, to send spam, or to get around rate limits or access controls (we do not solve CAPTCHAs). Do not resell raw access to the API as your own API without our written agreement. Do not use our AI features to create or describe sexual or other not-safe-for-work content.

## Plan

- Pay: $0
- You get: 100 requests a month
- Enough for: 100 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url. Optional: minConfidence, includeEvidence, render, timeoutMs
- Method: POST
- Path: /api/v1/techstack

## About the plan

- Plan: BASIC
- Who can get it: anyone with a RapidAPI account

## The 12 fields the plan's answer can hold

url, final URL, HTTP status, rendered with, technology count, technologies, technology name, technology category, technology confidence, technology version, technology evidence, technologies by category

## TidyTools's plans (7)

- [TidyTools, free](https://datacircle.dev/company-technology-apis/tidytools/free/llms.txt): $0.00 per 1,000, 23% complete, live
- [TidyTools, $5 pack](https://datacircle.dev/company-technology-apis/tidytools/5-pack/llms.txt): $6.30 per 1,000, 23% complete, live
- [TidyTools, $20 pack](https://datacircle.dev/company-technology-apis/tidytools/20-pack/llms.txt): $6.00 per 1,000, 23% complete, live
- [TidyTools, $50 pack](https://datacircle.dev/company-technology-apis/tidytools/50-pack/llms.txt): $5.727 per 1,000, 23% complete, live
- [TidyTools, $9.99 monthly](https://datacircle.dev/company-technology-apis/tidytools/9-99-monthly/llms.txt): $3.996 per 1,000, 23% complete, live
- [TidyTools, $29.99 monthly](https://datacircle.dev/company-technology-apis/tidytools/29-99-monthly/llms.txt): $2.499 per 1,000, 23% complete, live
- [TidyTools, $79.99 monthly](https://datacircle.dev/company-technology-apis/tidytools/79-99-monthly/llms.txt): $1.60 per 1,000, 23% complete, live

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

- `POST /api/v1/techstack`: [TidyTools, free](https://datacircle.dev/company-technology-apis/tidytools/free/llms.txt)

## TidyTools's APIs (12)

- [TidyTools: company enrichment API pricing, 5 plans](https://datacircle.dev/company-enrichment-apis/tidytools/free/llms.txt)
- [TidyTools: company open jobs API pricing, 5 plans](https://datacircle.dev/company-open-job-apis/tidytools/free/llms.txt)
- [TidyTools: tech stack API pricing, 7 plans](https://datacircle.dev/company-technology-apis/tidytools/free/llms.txt)
- [TidyTools: domain authority API pricing, 5 plans](https://datacircle.dev/domain-authority-apis/tidytools/free/llms.txt)
- [TidyTools: domain WHOIS API pricing, 7 plans](https://datacircle.dev/domain-whois-apis/tidytools/free/llms.txt)
- [TidyTools: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/tidytools/free/llms.txt)
- [TidyTools: local business search API pricing, 5 plans](https://datacircle.dev/local-business-search-apis/tidytools/free/llms.txt)
- [TidyTools: App Store API pricing, 3 plans](https://datacircle.dev/app-store-apis/tidytools/5-pack/llms.txt)
- [TidyTools: App Store review API pricing, 3 plans](https://datacircle.dev/app-store-review-apis/tidytools/5-pack/llms.txt)
- [TidyTools: Google Play API pricing, 3 plans](https://datacircle.dev/google-play-apis/tidytools/5-pack/llms.txt)
- [TidyTools: Google Play review API pricing, 3 plans](https://datacircle.dev/google-play-review-apis/tidytools/5-pack/llms.txt)
- [TidyTools: web scraping API pricing, 3 plans](https://datacircle.dev/web-scraping-apis/tidytools/5-pack/llms.txt)

## TidyTools: tech stack API alternatives

- [ToolTrace, $149 monthly](https://datacircle.dev/company-technology-apis/tooltrace/149-monthly/llms.txt): $1.656 per 1,000, 23% complete, live
- [1Lookup, $19,990 yearly, Enterprise (annual), POST /bulk/jobs](https://datacircle.dev/company-technology-apis/1lookup/19990-yearly-enterprise-annual-post-bulk-jobs/llms.txt): $1.666 per 1,000, 23% 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
- [BrowserSolver, $10,788 yearly](https://datacircle.dev/company-technology-apis/browsersolver/10788-yearly/llms.txt): $1.696 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://docs.rapidapi.com/docs/additional-request-headers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://docs.rapidapi.com/docs/hub-listing-monetize-tab.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://rapidapi.com/tidytools/api/tech-stack-detector2?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://rapidapi.com/tidytools/api/tech-stack-detector2/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://tools.yukai.uk?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://tools.yukai.uk/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://tools.yukai.uk/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://tools.yukai.uk/openapi/tech-stack-detection.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://tools.yukai.uk/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://tools.yukai.uk/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing