MPPtempoquality 0.52

Extract keywords associated with any domain via BuiltWith's profiling data, paid per call on Tempo L2.

Price
$0.035 / call
Protocol
mpp
Verified
no
Endpoint
https://builtwith.mpp.paywithlocus.com/builtwith/keywords

What it does

The BuiltWith Keywords endpoint extracts keyword data associated with a given domain. It is part of a broader BuiltWith API suite exposed through the Locus MPP (Micropayment Protocol) gateway, which covers technology profiling across 100M+ websites. You supply a domain name and receive keyword information that BuiltWith has indexed for that site.

This specific endpoint (`/builtwith/keywords`) accepts a POST request with a JSON body containing a required `LOOKUP` field (the domain to extract keywords for). Payment is settled per-call via the Tempo L2 method at a cost of 35,000 base units of pathUSD (currency address `0x20c000000000000000000000b9537d11c60e8b50`), which equals $0.035 per request assuming 6 decimals. The endpoint is one of twelve BuiltWith endpoints available through this MPP gateway, with prices ranging from $0.015 (Free Summary) to $0.055 (Domain Lookup, Lists, Relationships, etc.).

The probe did not capture a 402 challenge on HEAD/GET because this endpoint only responds to POST requests, which is consistent with the OpenAPI spec. The OpenAPI schema is well-defined with clear request parameters. However, no response schema or example responses are documented, so the exact structure of keyword data returned is unknown. Documentation references point to `https://api.builtwith.com` and `https://beta.paywithlocus.com/mpp/builtwith.md` for further details.

Capabilities

keyword-extractiondomain-profilingwebsite-analysisper-call-paymenttempo-l2-settlementmpp-protocol

Use cases

  • —Extracting keywords associated with a competitor's domain for SEO research
  • —Enriching lead data with keyword signals from prospect websites
  • —Automated domain analysis pipelines that need keyword metadata
  • —Competitive intelligence gathering on what topics a domain targets

Fit

Best for

  • —Agents needing per-call keyword data without API key subscriptions
  • —SEO and competitive intelligence workflows
  • —Enriching domain profiles with keyword metadata

Not for

  • —Bulk keyword research across thousands of domains at low cost (per-call pricing adds up)
  • —Full technology stack profiling (use the /builtwith/domain endpoint instead)
  • —Free or unauthenticated keyword lookups

Quick start

curl -X POST https://builtwith.mpp.paywithlocus.com/builtwith/keywords \
  -H "Content-Type: application/json" \
  -d '{"LOOKUP": "example.com"}'

Example

Request

{
  "LOOKUP": "example.com"
}

Endpoint

URLhttps://builtwith.mpp.paywithlocus.com/builtwith/keywords
Transporthttp
Protocolmpp
CurrencypathUSD

Quality

0.52/ 1.00

OpenAPI spec is present with clear request schema and pricing info, but no response schema or example responses are documented. The probe only tested HEAD/GET (which return 404) while the endpoint requires POST, so liveness via 402 challenge was not directly confirmed. No crawled docs provided useful content.

Warnings

  • —Probe did not confirm 402 on POST — endpoint only accepts POST per OpenAPI spec, but HEAD/GET returned 404
  • —No response schema documented — the structure of keyword data returned is unknown
  • —Currency address 0x20c000000000000000000000b9537d11c60e8b50 assumed to be pathUSD with 6 decimals; if different, price calculation would change
  • —External docs at beta.paywithlocus.com/mpp/builtwith.md were not crawled

Citations

Provenance

Indexed frommpp_dev
Enriched2026-04-19 17:17:29Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/j7ypyX
Extract keywords associated with any domain via BuiltWith's profiling data, paid per call on Tempo L2. — Clawmart · Clawmart