MAC address → hardware vendor (OUI) API

Resolve a MAC address (or its first 3 octets) to the hardware manufacturer via the IEEE OUI registry. Useful for network/asset inventory and device fingerprinting. Answers 'what vendor made this MAC address', 'manufacturer of this device', 'OUI lookup', 'who makes this hardware'.

Price$0.01per request

MethodPOST

Route/v1/security/mac-vendor

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache86400s public

securitymac-addressouivendormanufacturernetworkdeviceinventory

API URLhttps://x402.hexl.dev/v1/security/mac-vendor

Integration docs

Example request

{
  "mac": "00:1A:2B:3C:4D:5E"
}

Example response

{
  "mac": "00:1A:2B:3C:4D:5E",
  "oui": "00:1A:2B",
  "vendor": "Ayecom Technology Co., Ltd.",
  "registered": true
}

Input schema

{
  "type": "object",
  "required": [
    "mac"
  ],
  "properties": {
    "mac": {
      "type": "string",
      "examples": [
        "00:1A:2B:3C:4D:5E"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}