{
  "slug": "mac-vendor-lookup",
  "name": "gizza-ai/mac-vendor-lookup",
  "version": "0.1.0",
  "title": "MAC Address Vendor Lookup — gizza.ai",
  "description": "Look up the manufacturer of any MAC address from its OUI prefix with the bundled IEEE registry — colon, hyphen, dot or bare hex. Offline, free, in-browser.",
  "tags": [
    "mac address lookup",
    "oui lookup",
    "mac vendor",
    "ieee oui",
    "network",
    "ethernet",
    "vendor lookup",
    "device manufacturer",
    "mac address"
  ],
  "category": "network",
  "urls": {
    "page": "https://gizza.ai/tools/mac-vendor-lookup/",
    "markdown": "https://gizza.ai/tools/mac-vendor-lookup/index.md",
    "descriptor": "https://gizza.ai/tools/mac-vendor-lookup/tool.json",
    "deep_link_example": "https://gizza.ai/tools/mac-vendor-lookup/?mac=28%3A6F%3AB9%3A01%3A23%3A45"
  },
  "cli": "gizza tool mac-vendor-lookup \"28:6F:B9:01:23:45\"",
  "tool": {
    "description": "Resolve the manufacturer (vendor) of a network MAC / EUI address from its OUI (Organizationally Unique Identifier) — the first 3 octets — using a bundled IEEE registry. Fully offline: no DNS, no network, no sign-up. Accepts colon, hyphen, dot (Cisco 286f.b900.1a2b), or separator-less hex, case-insensitive, and either a full address or just the 3-octet OUI. For a single address it returns the normalized MAC, the OUI prefix, the registered organization name (or a note that the OUI is unassigned), and whether the address is globally unique vs locally administered and unicast vs multicast (decoded from the first octet's U/L and I/G bits). Pass several addresses one per line to batch-resolve them (one 'MAC — Vendor' line each).",
    "parameters": {
      "additionalProperties": false,
      "properties": {
        "mac": {
          "description": "The MAC / EUI address (or just its first 3 octets, the OUI) to look up. Colon, hyphen, dot (Cisco), or separator-less hex are all accepted, case-insensitive — e.g. '28:6F:B9:01:23:45', '286F-B901-2345', '286fb9012345', or just '28:6F:B9'. Pass several addresses one per line for a batch lookup (one result line each).",
          "type": "string"
        }
      },
      "required": [
        "mac"
      ],
      "type": "object"
    }
  }
}