List websites using a specific technology via BuiltWith, paid per-call over MPP/Tempo.
What it does
The BuiltWith Technology Lists endpoint (`/builtwith/lists`) returns a list of websites that use a specified technology (e.g. "Shopify", "WordPress", "React"). It is one of twelve BuiltWith endpoints exposed through the Locus MPP gateway, settling payments on Tempo L2 in pathUSD. Each call costs 55,000 base units (pathUSD with 6 decimals = $0.055 per request).
The endpoint accepts a POST request with a required `TECH` parameter specifying the technology name, plus optional parameters for pagination (`OFFSET`), result count (`AMOUNT`, max 500), sort order (`ORDER`), and metadata inclusion (`META`). This is part of a broader BuiltWith API suite available through the same MPP gateway that includes domain lookups, relationship mapping, trend analysis, trust signals, keyword extraction, product search, company-to-URL resolution, redirects, recommendations, and a free summary tier.
The endpoint is served via the Locus MPP protocol, meaning callers must complete a 402 payment challenge before receiving data. The probe did not receive a 402 on HEAD/GET because this endpoint only accepts POST requests, as specified in the OpenAPI schema. The OpenAPI spec is well-structured with clear parameter descriptions, and additional documentation is referenced at `https://api.builtwith.com` and `https://beta.paywithlocus.com/mpp/builtwith.md`.
Capabilities
Use cases
- —Find all websites running a specific technology like Shopify or WordPress for lead generation
- —Build competitive intelligence reports by listing sites using a competitor's tech stack
- —Enrich CRM data with technographic information about prospect websites
- —Monitor adoption of a technology across the web over time
- —Generate targeted outreach lists based on technology usage
Fit
Best for
- —Sales teams building technology-based prospect lists
- —Market researchers analyzing technology adoption
- —Competitive intelligence analysts profiling tech stacks
- —Lead generation workflows that need technographic filtering
Not for
- —Real-time website monitoring or uptime checks
- —Detailed per-page technology auditing (use domain lookup endpoint instead)
- —Free or high-volume bulk queries without per-call payment budget
Quick start
curl -X POST https://builtwith.mpp.paywithlocus.com/builtwith/lists \
-H "Content-Type: application/json" \
-H "Authorization: <MPP-Tempo-Payment-Token>" \
-d '{"TECH": "Shopify", "AMOUNT": "10"}'Example
Request
{
"META": "1",
"TECH": "Shopify",
"AMOUNT": "10"
}Endpoint
Quality
The OpenAPI spec is detailed with clear parameter descriptions and pricing for all endpoints. However, the probe did not capture a live 402 challenge (endpoint requires POST, probe used HEAD/GET), no response examples are available, and crawled pages returned only 404 JSON errors. No actual response schema is documented.
Warnings
- —Probe did not receive a 402 challenge because it used HEAD/GET; the endpoint only accepts POST per the OpenAPI spec — liveness is not confirmed but likely.
- —No response schema or example responses are documented in the OpenAPI spec.
- —Currency address 0x20c000000000000000000000b9537d11c60e8b50 is assumed to be pathUSD (6 decimals) based on Tempo L2 convention; if decimals differ, the $0.055 price would be incorrect.
- —External docs at https://beta.paywithlocus.com/mpp/builtwith.md and https://api.builtwith.com were not crawled.
Citations
- —The /builtwith/lists endpoint costs 55,000 base units in pathUSD via Tempo settlementhttps://builtwith.mpp.paywithlocus.com
- —The endpoint accepts TECH (required), OFFSET, AMOUNT (max 500), ORDER, and META parametershttps://builtwith.mpp.paywithlocus.com
- —BuiltWith covers 100M+ websites for technology profilinghttps://builtwith.mpp.paywithlocus.com
- —Additional documentation is available at api.builtwith.com and beta.paywithlocus.com/mpp/builtwith.mdhttps://builtwith.mpp.paywithlocus.com