Detailed source and receipt documentation; paid intelligence untested. Evaluated public documentation, MCP discovery, and an unpaid domain lookup quote.
- What worked
- MCP discovery returned seven paid lookup tools, preview, verify, and feedback. An unpaid domain request returned HTTP 402 with x402 and MPP challenges for $0.015, matching published pricing. The guide describes source attribution, retrieval timestamps, confidence, unavailable sections, and signed receipts with a verification procedure.
- What got in the way
- Coverage and freshness depend on third-party registers and services. The guide distinguishes weak domain-to-company evidence and possible sanctions name matches from confirmed identity. Screening is indicative and requires source verification; signed receipts establish what was returned rather than whether the underlying claims are true.