Launching December 1, 2026
Macadress Vendor Lookup
We dropped the extra D. Not the details.
FreeAPI219 impressionslaunches Dec 1
Free MAC address lookup and vendor finder. Enter any MAC address or OUI to get its registered vendor, IEEE assignment type (MA-L/MA-M/MA-S/IAB/CID), block range, country, unicast/multicast and universal/local administration, randomization likelihood, and derived IPv6 link-local address. Available as a free web tool, a JSON API with a free tier (1,000 lookups/month), paid hosted plans for production volume, and a self-hosted option for teams that can't let MAC addresses leave their network.
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Free MAC address lookup and vendor finder with JSON API, paid hosted and self-hosted options.
- for
- Developers, network/security engineers, IoT and MDM teams.
- pricing
- freemium
- license
- MIT
works withPHPPowerShell
Key features
8 features of Macadress Vendor Lookup
- Vendor & assignment info — Returns registered organization, IEEE assignment type, block range and country.
- Address type detection — Indicates unicast/multicast and universal/local administration.
- Randomization flagging — Detects likely randomized MACs and provides confidence level.
- IPv6 derivation — Calculates possible EUI-64 and link-local IPv6 address.
- Batch endpoint — Lookup up to 100 MACs per request via POST /v1/mac/batch.
- Self-hosted license — Run the same engine on-premises with unlimited local queries.
- Client libraries — Official SDKs for PHP, JavaScript, Python, Go, PowerShell, C# and more.
- Live registry sync — Daily sync with IEEE MA-L/M/A/IAB/CID registries.
Use cases
- Enrich network logs with vendor and location data.
- Detect randomized MAC addresses in Wi-Fi security audits.
- Generate IPv6 link-local addresses for device provisioning.
- Batch process MAC lists for IoT fleet inventory.
- Integrate vendor lookup into Splunk, MISP or OpenCTI dashboards.
Macadress Vendor Lookup pricing
- Free$01,000 lookups / month · 30 requests / minute · Full response · Batch endpoint
- Growth$19/month100,000 lookups / month · 120 requests / minute · 20% overage grace · Email support
- Scale$79/month1,000,000 lookups / month · 600 requests / minute · 99.9% SLA · Priority support
- Self-hosted$999/yearUnlimited local queries · No rate limits · Air-gapped deployment · Batch MAC & serial provisioning
Macadress Vendor Lookup vs alternatives
 Macadress Vendor Lookup |  Firecamp |  Hookdeck |  Grafbase |  Public APIs | |
|---|---|---|---|---|---|
| Best for | MAC vendor lookup with randomization detection | API testing and mock responses | Event-driven architectures | GraphQL API generation | Discovering public APIs |
| Pricing | Freemium | Free | Free | Free | Free |
| DevHunt upvotes | 1 | 48 | 30 | 24 | 41 |
| Launched | Dec 2026 | Jan 2023 | Mar 2024 | Jan 2023 | Jan 2023 |
- Macadress Vendor Lookup vs Firecamp: General API testing tool, not specialized for MAC/vendor data.
- Macadress Vendor Lookup vs Hookdeck: Event gateway for streaming events, unrelated to MAC lookups.
- Macadress Vendor Lookup vs Grafbase: Provides instant GraphQL APIs for data, not MAC address resolution.
- Macadress Vendor Lookup vs Public APIs: Curated list of public APIs, includes many but not a dedicated MAC lookup service.
Macadress Vendor Lookup FAQ
Is there a free MAC address lookup API?+
Yes. The API offers 1,000 free lookups per month with no credit card required.
Do I need to format the MAC address a specific way?+
No. The service accepts colon, dash, dot, space or plain hex formats.
Can I look up multiple MAC addresses in one request?+
Yes. Use the POST /v1/mac/batch endpoint for up to 100 addresses per call.
What’s the difference between a MAC address and an OUI?+
An OUI is the first 24 bits of a MAC; lookups return the OUI plus the full matched block, which may be narrower.
Can a MAC address be randomized or spoofed?+
Yes. The lookup flags likely randomized addresses and explains the confidence level in plain English.
Summarized by DevHunt from macadress.com · Sep 27, 2026. Details may change; check the official site.
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