Datacircle

WhatCMS pricing and alternatives: cached tech stack API, GET /API/Tech

WhatCMS's sitellms.txtBest cached tech stack API in 2026
23% complete: 3 of the 13 key fields we checkSee the 13 fields
$0.00per 1,000 companiesThe cheapest of the 113 plans we rank by price is DetectZeStack, $79 monthly, Mega, POST /analyze/batch, at $0.158 per 1,000 companies.Tomba, DetectZeStack and WhatCMS are the best cached tech stack API providers in our benchmark.
Plan: 500 Detections one of WhatCMS's 14 plans
Call: GET /API/Tech one of WhatCMS's 3 calls
API: Cached tech stack API WhatCMS's only API

About this item

  • Stored. You get technologies from WhatCMS's database. WhatCMS doesn't say how old its data is.
  • 3 of the 13 key fields we check. Technology, Categories, Social.
  • Nothing to pay. You get 500 requests a month.
  • One call. You send url to GET /API/Tech. You can also send private. The call returns the technologies the company uses.
  • Who can get it: anyone with an account, one account each. Keep data: for caching purposes only. Use data: with conditions.

WhatCMS: cached tech stack API alternatives

The table starts with WhatCMS's cheapest paid plan. Next come plans from other providers with the price per 1,000 companies closest to WhatCMS's. Each plan in the table gives stored data.

WhatCMS, $800 monthly, 1,000,000 Detections, GET /API/TechZoomInfo, freeTomba, $1,791 yearlyDetectZeStack, $79 monthly, Mega, GET /changesThe Swarm, $96,000 yearlyTechnologyChecker, $2,490 yearly, Scale, GET /v1/domain/{domain}/history
$ per 1,000 companies$0.80$0.00$1.244$1.58$4.00$4.15
Completeness23%15%15%15%38%23%
Billingmonthlyfreeyearlymonthlyyearlyyearly
Pay$800$0$1,791$79$96,000$2,490
Enough for1,000,000 calls a month1,000 calls, once120,000 calls a month50,000 calls a month24,000,000 results a year50,000 calls a month
Freshnessstoredstoredstoredstoredstoredstored
Who can get itanyone with an account, one account eachemployees of the company that holds the account (a contractor only with ZoomInfo's prior permission), each with their own login and a business email addressanyone 18 or overanyone with an account (a valid email address)anyone over 18anyone 18 or over

Every cached tech stack API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-27.

  1. whatcms.org
  2. whatcms.org/API/Plans
  3. whatcms.org/Documentation
  4. whatcms.org/Support
  5. whatcms.org/Terms

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Technology
  • Categories
  • When and where seen, not in the answer
  • Spend, not in the answer
  • Apps, not in the answer
  • About, not in the answer
  • Size, not in the answer
  • Places, not in the answer
  • Traffic, not in the answer
  • Rank, not in the answer
  • Contact, not in the answer
  • Social
  • Reviews, not in the answer
Price
$ per 1,000 companies$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: Host Detection · WordPress Theme Detection
Not found
$ per 1,000$0.00
In their words
Their pitchThe 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
Freshnessstored
Keep datafor caching purposes only
Use dataYou may view, download for caching purposes only, and print pages from the website, provided that: (a) you must not republish material from this website (including republication on another website), or reproduce or store material from this website in any public or private electronic retrieval system, (b) you must not reproduce, duplicate, copy, sell, resell, visit, or otherwise exploit our website or material on our website for a commercial purpose, without our express written consent [...] you agree not to reproduce, duplicate, copy, sell, resell or exploit for any commercial purposes, any aspect of the Service
Plan
Pay$0
You get500 requests a month
Enough for500 calls a month
Rate limit
Per second0.1
Batch1
Speed
Answerin the call
Median0.94 s
The call
You sendurl. Optional: private
MethodGET
Path/API/Tech
About the plan
Plan500 Detections
Who can get itanyone with an account, one account each
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

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