MAC Address Lookup
Free, private MAC address and OUI vendor lookup that runs client-side
Web tool for resolving MAC addresses or OUI prefixes to their registered IEEE organization via longest-prefix match across MA-L, MA-M, MA-S, IAB, and CID blocks. Lookups run in the browser with no server processing of entered addresses. Includes pre-rendered pages for vendors, countries, registries, years, regions, and ownership history, downloadable NDJSON registry and lineage datasets, and a stateless MCP server at /mcp exposing a single 'lookup' tool with no API key or auth. Data is derived from IEEE Registration Authority registries and the runZero mac-tracker dataset (MIT).
- Category
- Other
- Pricing
- free
- Free tier
- yes
- API
- yes
- MCP server
- yes
- SDK
- no
- Open source
- unknown
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Listed 2026-10-28 · last verified 2026-10-28 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.9
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API
curl https://toolgrep.com/api/products/mac-address-lookup