# Who Hosts This, free, GET /API/Tech: Tech stack API

> The technology endpoint provides a more complete picture of the software powering webpages. In addition to detecting the CMS, this endpoint will return the programming language, database, web server and more of the requested URL.

Who Hosts This's tech stack API on its Free plan. It costs $0.00 per 1,000 companies. Who Hosts This's docs list 3 of the 13 fields on our checklist: Technology, Categories, Social.
We haven't run Who Hosts This through [our tech stack API benchmark](https://datacircle.dev/best-tech-stack-api.txt) yet.
This plan is free. We rank 384 plans for tech stack APIs by price. Half the plans cost $5.00 per 1,000 companies or less. [See how many tech stack API plans are free.](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.
[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/who-hosts-this/free-get-api-tech
- [Tech stack API: find a company's technologies](https://datacircle.dev/best-tech-stack-api.txt)
- Get it: https://www.who-hosts-this.com/API?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Request: `GET https://whatcms.org/API/Tech`
- API key: with the plan, on https://www.who-hosts-this.com/API?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Its API docs: https://www.who-hosts-this.com/Documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing#toc-technology-detection
- Sold by: Who Hosts This (https://www.who-hosts-this.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 23%
- Technology: ✓
- Categories: ✓
- Social: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Host Detection · WordPress Theme Detection

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: The technology endpoint provides a more complete picture of the software powering webpages. In addition to detecting the CMS, this endpoint will return the programming language, database, web server and more of the requested URL.

## Data

- Keep data: no limit
- Use data: "(3) [...] You further agree not to reproduce, duplicate or copy Content from the Service without the express written consent of Who-Hosts-This.com [...] Without limiting the foregoing, you agree not to reproduce, duplicate, copy, sell, resell or exploit for any commercial purposes, any aspect of the Service." [...] "(8) [...] You must not re-sell or reproduce any of the contents of this website without our permission."

## Plan

- Pay: $0
- You get: 500 requests a month
- Enough for: 500 calls a month

## Rate limit

- Per second: 0.1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url. Optional: private
- Method: GET
- Path: /API/Tech

## About the plan

- Plan: Free
- Who can get it: anyone with an account (duplicate accounts are suspended)

## The 14 fields the plan's answer can hold

request URL, result code, result message, last checked, technologies, technology name, technology ID, technology version, technology categories, technology URL, social profiles, social network, social profile URL, social profile username

## Who Hosts This's plans (27)

- [Who Hosts This, free, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/free-get-api-tech/llms.txt): $0.00 per 1,000, 23% complete
- [Who Hosts This, $20 monthly, 10,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/20-monthly-10000-detections-get-api-tech/llms.txt): $2.00 per 1,000, 23% complete
- [Who Hosts This, $40 monthly, 20,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/40-monthly-20000-detections-get-api-tech/llms.txt): $2.00 per 1,000, 23% complete
- [Who Hosts This, $80 monthly, 50,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/80-monthly-50000-detections-get-api-tech/llms.txt): $1.60 per 1,000, 23% complete
- [Who Hosts This, $150 monthly, 100,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/150-monthly-100000-detections-get-api-tech/llms.txt): $1.50 per 1,000, 23% complete
- [Who Hosts This, $300 monthly, 200,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/300-monthly-200000-detections-get-api-tech/llms.txt): $1.50 per 1,000, 23% complete
- [Who Hosts This, $360 monthly, 300,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/360-monthly-300000-detections-get-api-tech/llms.txt): $1.20 per 1,000, 23% complete
- [Who Hosts This, $450 monthly, 400,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/450-monthly-400000-detections-get-api-tech/llms.txt): $1.125 per 1,000, 23% complete
- [Who Hosts This, $500 monthly, 500,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/500-monthly-500000-detections-get-api-tech/llms.txt): $1.00 per 1,000, 23% complete
- [Who Hosts This, $600 monthly, 600,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/600-monthly-600000-detections-get-api-tech/llms.txt): $1.00 per 1,000, 23% complete
- [Who Hosts This, $650 monthly, 700,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/650-monthly-700000-detections-get-api-tech/llms.txt): $0.929 per 1,000, 23% complete
- [Who Hosts This, $720 monthly, 800,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/720-monthly-800000-detections-get-api-tech/llms.txt): $0.90 per 1,000, 23% complete
- [Who Hosts This, $760 monthly, 900,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/760-monthly-900000-detections-get-api-tech/llms.txt): $0.844 per 1,000, 23% complete
- [Who Hosts This, $800 monthly, 1,000,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/800-monthly-1000000-detections-get-api-tech/llms.txt): $0.80 per 1,000, 23% complete
- [Who Hosts This, $200 yearly, 10,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/200-yearly-10000-detections-yearly-get-api-tech/llms.txt): $1.667 per 1,000, 23% complete
- [Who Hosts This, $400 yearly, 20,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/400-yearly-20000-detections-yearly-get-api-tech/llms.txt): $1.667 per 1,000, 23% complete
- [Who Hosts This, $800 yearly, 50,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/800-yearly-50000-detections-yearly-get-api-tech/llms.txt): $1.333 per 1,000, 23% complete
- [Who Hosts This, $1,500 yearly, 100,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/1500-yearly-100000-detections-yearly-get-api-tech/llms.txt): $1.25 per 1,000, 23% complete
- [Who Hosts This, $3,000 yearly, 200,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/3000-yearly-200000-detections-yearly-get-api-tech/llms.txt): $1.25 per 1,000, 23% complete
- [Who Hosts This, $3,600 yearly, 300,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/3600-yearly-300000-detections-yearly-get-api-tech/llms.txt): $1.00 per 1,000, 23% complete
- [Who Hosts This, $4,500 yearly, 400,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/4500-yearly-400000-detections-yearly-get-api-tech/llms.txt): $0.938 per 1,000, 23% complete
- [Who Hosts This, $5,000 yearly, 500,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/5000-yearly-500000-detections-yearly-get-api-tech/llms.txt): $0.833 per 1,000, 23% complete
- [Who Hosts This, $6,000 yearly, 600,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/6000-yearly-600000-detections-yearly-get-api-tech/llms.txt): $0.833 per 1,000, 23% complete
- [Who Hosts This, $6,500 yearly, 700,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/6500-yearly-700000-detections-yearly-get-api-tech/llms.txt): $0.774 per 1,000, 23% complete
- [Who Hosts This, $7,200 yearly, 800,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/7200-yearly-800000-detections-yearly-get-api-tech/llms.txt): $0.75 per 1,000, 23% complete
- [Who Hosts This, $7,600 yearly, 900,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/7600-yearly-900000-detections-yearly-get-api-tech/llms.txt): $0.704 per 1,000, 23% complete
- [Who Hosts This, $8,000 yearly, 1,000,000 Detections, yearly, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/8000-yearly-1000000-detections-yearly-get-api-tech/llms.txt): $0.667 per 1,000, 23% complete

## Who Hosts This's calls (3)

- `GET /API/Host`: [Who Hosts This, free, GET /API/Host](https://datacircle.dev/company-technology-apis/who-hosts-this/free-get-api-host/llms.txt)
- `GET /API/Tech`: [Who Hosts This, free, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/free-get-api-tech/llms.txt)
- `GET /API/Theme`: [Who Hosts This, free, GET /API/Theme](https://datacircle.dev/company-technology-apis/who-hosts-this/free-get-api-theme/llms.txt)

## Who Hosts This's APIs (1)

- [Who Hosts This: tech stack API pricing, 27 plans, GET /API/Tech](https://datacircle.dev/company-technology-apis/who-hosts-this/free-get-api-tech/llms.txt)

## Who Hosts This: tech stack API alternatives

- [Enrich.chat, $299 monthly, Pro, POST /jobs](https://datacircle.dev/company-technology-apis/enrich-chat/299-monthly-pro-post-jobs/llms.txt): $0.598 per 1,000, 15% complete
- [Siftwright, $999 monthly](https://datacircle.dev/company-technology-apis/siftwright/999-monthly/llms.txt): $0.666 per 1,000, 15% complete, live
- [DomScan, $6 monthly, Starter, POST /v1/tech/bulk](https://datacircle.dev/company-technology-apis/domscan/6-monthly-starter-post-v1-tech-bulk/llms.txt): $0.72 per 1,000, 23% complete
- [WhatCMS, $800 monthly, 1,000,000 Detections, GET /API/Tech](https://datacircle.dev/company-technology-apis/whatcms/800-monthly-1000000-detections-get-api-tech/llms.txt): $0.80 per 1,000, 23% 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 2026-11-07.

- https://www.who-hosts-this.com/API?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://www.who-hosts-this.com/Documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://www.who-hosts-this.com/Support?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://www.who-hosts-this.com/Terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing