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BuiltWith Agent Ask
x402
BuiltWith Agent Ask is a paid API for AI agents from api.builtwith.com, paid per call via x402, $0.0495/call, status unknown (last checked 2026-09-15).
Accepts a natural-language query to find websites that use specific technologies, returning a list of matching domains with BuiltWith tech-stack data
Price / call$0.0495
Success—
StatusUnknown
How this service works
BuiltWith API Overview
Output
A JSON object with a Results array, where each entry represents a matching website and may include domain name, detected technologies, and additional BuiltWith metadata (when the meta flag is enabled). Fields vary based on available data and query scope.
Example use cases
Competitor tech-stack benchmarking
“Find me all the websites in the fintech space that are using Stripe for payments and Intercom for customer support — I want to see who my competitors are and what tools they rely on.”
Sales lead prospecting by technology
“Pull me a list of e-commerce sites that are using Magento so my sales team can reach out — include as much detail about each site as you can find.”
Market research for SaaS adoption
“I want to know which enterprise websites are currently running Salesforce CRM — can you search BuiltWith and give me the results with metadata included?”
Technical details
Endpoint
POSThttps://api.builtwith.com/agent/askWhen to prefer
Choose this endpoint when you need to discover websites filtered by specific technology usage using plain-language queries, rather than building complex programmatic filters. Ideal for sales prospecting, competitive intelligence, or market research where the user can describe what they want in natural language. Prefer it over raw BuiltWith REST endpoints when you want to skip API parameter construction and just describe the target website profile conversationally.
Side effects
- Empty Results array if no websites match the query criteria
- Vague or ambiguous natural-language query produces irrelevant or broad results
- Query exceeds 1000 character limit returns validation error
- Payment failure or insufficient USDC balance blocks the request
- Rate limiting or quota exceeded on the BuiltWith API side
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| meta | boolean | Include additional BuiltWith metadata when available. |
| query | string | Natural-language description of the websites to find. |
Output
Schema · Response
{
"type": "json",
"example": {
"Results": []
}
}Tags
x402
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