BuiltWith Recommendations via Locus x402 is a paid API for AI agents from builtwith.x402.paywithlocus.com, paid per call via x402, $0.035/call, status unknown (last checked 2026-09-15).
Returns technology-based domain recommendations — similar sites and related domains — for a given website using BuiltWith's 100M+ site database.
Technology profiling for websites — detect tech stacks, find sites using specific technologies, discover domain relationships, trends, and competitive intelligence across 100M+ websites.
A JSON object containing recommended/related domains for the given website, likely including domain names and signals derived from shared or similar technology stacks, along with payment confirmation metadata (settled USDC, authorized amount) and a request ID for status tracking.
POSThttps://builtwith.x402.paywithlocus.com/builtwith/recommendationsChoose this endpoint when you need to discover websites that are similar or related to a given domain based on shared technology profiles, especially for competitive intelligence, lead generation, or market research. It is backed by BuiltWith's massive 100M+ site index, making it more comprehensive than manual research. Prefer this over general web search when you specifically want technology-signal-based domain similarity rather than keyword or content similarity.
| Field | Type | Description |
|---|---|---|
| LOOKUP | string |
{
"type": "json",
"example": {
"data": {},
"payment": {
"scheme": "exact",
"settledUsdc": "0.001000",
"authorizedMaxUsdc": "0.001000"
},
"request": {
"id": "00000000-0000-4000-8000-000000000000",
"statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
},
"success": true
}
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