osint_mac_vendor_lookup
Identify the manufacturer of any network device by its MAC address using a local OUI lookup. Works offline with no external requests.
Instructions
MAC Address Vendor Lookup. Identify the hardware manufacturer of a network device from its MAC address by matching the 24-bit OUI prefix against a built-in IEEE OUI table. Runs locally: no outbound request to macvendors.com or any external registry, so it is read-only, non-destructive, deterministic, and works offline. Use this to attribute an existing MAC to a vendor; use networking_mac_address_generator to create random/vendor MACs, and osint_vin_decoder to decode a vehicle VIN instead of a network address. Rate limited to 60 requests/minute for anonymous callers. Returns the normalized address, the OUI, the matched vendor (null when the OUI is not in the bundled subset), vendor details, and a structural analysis (unicast/multicast, locally vs universally administered, likely-virtual flag).
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| mac_address | Yes | MAC address to look up. Accepts 12 hex digits with any or no separator (colon, hyphen, dot); case-insensitive. Must contain exactly 12 hex characters (6 bytes) after separators are stripped. |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| success | No | True when the lookup completed; false on invalid input. | |
| error | No | Present only when success is false; human-readable reason (blank or malformed MAC). | |
| result | No | Lookup result; present when success is true. |