MAC Address Lookup
Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.
| Endpoint | https://mac.jasontally.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 1 tools · grade A (99) · pin ts_93645eec1f5b68fb5f5314ae05c8d59c · protocol 2025-06-18 |
| First / last listed | 2026-10-26 03:10 UTC / 2026-10-26 03:10 UTC |
| Grade over time | 2026-10-26: A (99), 1 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: lookup
lookup | Resolve a MAC address or OUI prefix to its registered organization using longest-prefix match across the MA-L, MA-M, MA-S, IAB, and CID registries. Reports the block type, address count, registration country, and a link to the full record page. Randomized and locally administered addresses usually have no registered organization. params: mac* |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.