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Tech Stack Change Detector
x402
Tech Stack Change Detector is a paid API for AI agents from api.timzinin.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Detects which technologies have been added or removed from a website's tech stack compared to a previously known state
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call data & tool APIs
Output
Returns a JSON object with the current list of detected technologies, a stack hash, a list of added technologies (compared to the provided previous stack), a list of removed technologies, the HTTP status of the scraped domain, a timestamp of when the check ran, and run metadata including execution time and settlement status.
Example use cases
Competitor tech stack monitoring
“Has shopify.com made any changes to its technology stack recently? I last saw them using Cloudflare and React — tell me if anything was added or removed.”
Sales trigger for SaaS outreach
“Check if acme.com has dropped Salesforce or added a new CRM tool since they were on HubSpot — I want to know if it's a good time to reach out.”
Migration verification for a client site
“My client just migrated clientsite.com from WordPress to Webflow — can you confirm that WordPress is no longer detected and Webflow is now showing up in their stack?”
Technical details
Endpoint
POSThttps://api.timzinin.com/api/tech-stack-change-detectorWhen to prefer
Use this endpoint when you need to compare a domain's current technology fingerprint against a known previous state and get a structured diff of added/removed tools. It is ideal for sales intelligence workflows (detecting when prospects switch platforms), competitive monitoring, and migration verification. Prefer this over a generic tech stack lookup when the delta (what changed) is the primary signal you need, not just the current state.
Side effects
- Domain is unreachable or returns non-200 HTTP status — httpStatus field reflects this, found may be false
- Invalid domain format causes request rejection
- Previous stack not provided correctly — diff results may be empty or misleading
- Website uses heavy client-side rendering making tech detection incomplete
- Rate limiting or payment settlement failure returns error before scan runs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| items | array | |
| maxConcurrency | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"meta": {
"run_ms": 1200,
"settled": true,
"item_count": 1
},
"results": [
{
"added": [
"Shopify",
"Zendesk",
"Cloudflare"
],
"found": true,
"input": "gymshark.com|WordPress",
"domain": "us.checkout.gymshark.com",
"removed": [
"WordPress"
],
"checkedAt": "2026-07-26T13:23:09.900Z",
"stackHash": "Cloudflare|Shopify|Zendesk",
"httpStatus": 200,
"technologies": [
"Shopify",
"Zendesk",
"Cloudflare"
],
"previousStack": [
"WordPress"
]
}
]
}
}Tags
x402
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