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BuiltWith Technology Change Detection
x402
BuiltWith Technology Change Detection is a paid API for AI agents from api.builtwith.com, paid per call via x402, $0.0495/call, status unknown (last checked 2026-09-13).
Detects technology stack changes on a domain over time, reporting what was added or removed
Price / call$0.0495
Success—
StatusUnknown
How this service works
BuiltWith API Overview
Output
A JSON object with a Results array containing detected technology changes for the domain, including technologies added and removed within the specified time period, with metadata such as technology category, dates, and change type.
Example use cases
Competitor tech stack monitoring
“Look up what technologies stripe.com has added or removed in the last month — I want to know if they've changed their analytics or marketing tools.”
Sales lead enrichment for tech shifts
“Check BuiltWith for any technology changes on hubspot.com since last quarter so I can see if they've adopted new infrastructure or dropped any platforms.”
SaaS churn signal detection
“Has salesforce.com made any technology changes recently? I'm trying to see if they stopped using any of our partner tools.”
Technical details
Endpoint
POSThttps://api.builtwith.com/agent/changesWhen to prefer
Choose this endpoint when you specifically need to track what has changed in a website's technology stack over time, rather than just getting a current snapshot. It is ideal for competitive intelligence workflows, sales prospecting triggers, and partner churn detection where temporal change signals matter. Prefer this over a general technology lookup when the user's question is about what is different, new, or dropped rather than what is currently present.
Side effects
- Domain not found in BuiltWith database returns empty Results array
- Invalid domain format (URL path included) causes request failure
- Unknown or unsupported time boundary string may return no filtered results
- Rate limiting or payment failure returns HTTP error
- Very new domains with no crawl history return empty results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| since | string | Optional BuiltWith time boundary, for example 'last month'. |
| domain | string | Domain name to research, for example example.com. Do not include a URL path. |
Output
Schema · Response
{
"type": "json",
"example": {
"Results": []
}
}Tags
x402
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