# DetectZeStack, free, Free, POST /analyze/batch: Cached tech stack API

> Batch up to 10 URLs in a single request. Concurrent processing, ordered results. Add ?format=csv for spreadsheet-ready export.

DetectZeStack's cached tech stack API on its Free plan. It costs $0.00 per 1,000 companies. It returns 3 of the 13 key fields we check: Technology, Categories, When and where seen.
The cheapest of the 113 plans we rank by price is [DetectZeStack, $79 monthly, Mega, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/79-monthly-mega-post-analyze-batch/llms.txt), at $0.158 per 1,000 companies.
[Tomba](https://datacircle.dev/cached-company-technology-apis/tomba/449-monthly/llms.txt), [DetectZeStack](https://datacircle.dev/cached-company-technology-apis/detectzestack/79-monthly-mega-get-analyze/llms.txt) and [WhatCMS](https://datacircle.dev/cached-company-technology-apis/whatcms/500-monthly-500000-detections-get-api-tech/llms.txt) are the best cached tech stack API providers in our benchmark.

- This page: https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-post-analyze-batch
- [Best cached tech stack API in 2026](https://datacircle.dev/best-cached-tech-stack-api.txt)
- Get it: https://detectzestack.com/pricing
- Request: `POST https://detectzestack.com/analyze/batch`
- API key: with the plan, on https://detectzestack.com/pricing
- Its API docs: https://detectzestack.com/openapi.yaml
- Sold by: DetectZeStack (https://detectzestack.com)
- Checked: 2026-10-27

## In the answer

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

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Create a tech change alert watch: 1 weekly alert · from the same budget: Analyze a URL · Compare technology stacks · Get technology history · Technology change feed · Check if a website uses a specific technology · Reverse technology lookup — find sites using a technology · Vulnerability scan — CVEs for detected technologies · Check TLS certificate · DNS lookup · Security headers analysis

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Batch up to 10 URLs in a single request. Concurrent processing, ordered results. Add ?format=csv for spreadsheet-ready export.

## Data

- Freshness: 24 hours
- Keep data: no limit
- Use data: You agree not to use the Service to: Submit URLs you do not have a legitimate research, security, monitoring, or business reason to inspect. Attempt to overwhelm, denial-of-service, or otherwise abuse our infrastructure or any third-party site we resolve on your behalf. Use the Service to facilitate illegal activity, harass any individual or organization, or violate the rights of any third party. Reverse-engineer, decompile, or otherwise extract the source code of the Service beyond what is exposed via the public API. Resell or sublicense the Service without our written permission.

## Plan

- Pay: $0
- You get: 100 requests a month
- Enough for: 1,000 results a month
- Expires: at the start of each calendar month

## Rate limit

- Per second: 5
- Batch: 10

## Speed

- Answer: in the call

## The call

- You send: urls. Optional: format
- Method: POST
- Path: /analyze/batch

## About the plan

- Plan: Free
- Who can get it: anyone with an account (a valid email address), no credit card

## The 21 fields the plan's answer can hold

url, domain, technologies, technology name, technology version, technology categories, technology confidence, technology description, technology website, technology icon, technology CPE, technology detection source, technologies by category, HTTP status code, technology count, scan depth, cached, response time, successful count, failed count, total response time

## DetectZeStack's plans (4)

- [DetectZeStack, free, Free, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-post-analyze-batch/llms.txt): $0.00 per 1,000, 23% complete, 24 hours
- [DetectZeStack, $9 monthly, Pro, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/9-monthly-pro-post-analyze-batch/llms.txt): $0.90 per 1,000, 23% complete, 24 hours
- [DetectZeStack, $29 monthly, Ultra, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/29-monthly-ultra-post-analyze-batch/llms.txt): $0.29 per 1,000, 23% complete, 24 hours
- [DetectZeStack, $79 monthly, Mega, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/79-monthly-mega-post-analyze-batch/llms.txt): $0.158 per 1,000, 23% complete, 24 hours

## DetectZeStack's calls for this API (6)

- `GET /analyze`: [DetectZeStack, free, Free, GET /analyze](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-get-analyze/llms.txt)
- `POST /analyze/batch`: [DetectZeStack, free, Free, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-post-analyze-batch/llms.txt)
- `GET /check`: [DetectZeStack, free, Free, GET /check](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-get-check/llms.txt)
- `GET /history`: [DetectZeStack, free, Free, GET /history](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-get-history/llms.txt)
- `GET /changes`: [DetectZeStack, free, Free, GET /changes](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-get-changes/llms.txt)
- `GET /site`: [DetectZeStack, $29 monthly, Ultra, GET /site](https://datacircle.dev/cached-company-technology-apis/detectzestack/29-monthly-ultra-get-site/llms.txt)

## DetectZeStack's APIs (3)

- [DetectZeStack: cached company discovery API pricing, 4 plans](https://datacircle.dev/cached-company-discovery-apis/detectzestack/free/llms.txt)
- [DetectZeStack: cached tech stack API pricing, 4 plans, POST /analyze/batch](https://datacircle.dev/cached-company-technology-apis/detectzestack/free-free-post-analyze-batch/llms.txt)
- [DetectZeStack: tech stack API pricing, 4 plans](https://datacircle.dev/company-technology-apis/detectzestack/free/llms.txt)

## DetectZeStack: cached tech stack API alternatives

- [JobsPipe, $5,244 yearly](https://datacircle.dev/cached-company-technology-apis/jobspipe/5244-yearly/llms.txt): $0.874 per 1,000, 31% complete, 6 hours
- [TheirStack, $5,500 monthly](https://datacircle.dev/cached-company-technology-apis/theirstack/5500-monthly/llms.txt): $3.30 per 1,000, 23% complete, 1 day
- [Pubrio, $495 pack](https://datacircle.dev/cached-company-technology-apis/pubrio/495-pack/llms.txt): $9.00 per 1,000, 23% complete, 1 day
- [Pipecorn, $53,990 yearly](https://datacircle.dev/cached-company-technology-apis/pipecorn/53990-yearly/llms.txt): $24.995 per 1,000, 15% complete, 1 day

## 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.

- https://detectzestack.com
- https://detectzestack.com/openapi.yaml
- https://detectzestack.com/pricing
- https://detectzestack.com/terms