Data governance
This page explains what the source data represents and the boundaries for using public output. The MIT license for the application source code grants no rights over third-party data.
The official layer identifies the registrant of an address block; the curated layer shows a separate source claim. A result does not prove a device's actual manufacturer, model, owner, location, or network identity. MAC addresses can be changed, spoofed, or randomized.
Every public result is linked to an active data release and source release. A downloadable source does not imply permission for redistribution or derived API output. Source-specific rights and usage scope appear under Data sources and the active data release.
Using API output does not grant the right to redistribute raw source artifacts. Users are responsible for applicable source terms, attribution obligations, and laws governing their own use. macvendor.io grants no additional license on behalf of any source.
Data may be incomplete, stale, or incorrect. No match does not conclusively prove that no registration exists. The response schema is governed by SemVer and the API contract; no specific uptime, coverage, or error-free guarantee is provided.
Clients must follow caching, ETag, canonical redirect, rate-limit, and Retry-Afterheaders. Use intended to bypass limits or access controls, or present the service as a device/person tracking tool, is not supported.
For misattribution, privacy, or rights issues, use the data correction process. Existing release rows are never silently changed; an accepted correction produces a new release or an auditable suppression decision.
Last updated: 12 July 2026 · This text is not legal advice.