Pricing
MAC address and OUI vendor lookup on ssid.ai is free, with no daily limit, on every tier — no key, no account, no card. We will not try to out-price a field you can pull from the IEEE registry yourself. What costs money is the part no one else publishes: the router default-login directory and the compliance record, live and updated, at $10 a month for 10,000 calls a day and $100 a month for 100,000.
Last updated 2026-08-08 · ssid.ai
| Tier | Price | Lookups | Burst | What you do to get it |
|---|---|---|---|---|
| Anonymous | $0 | Unlimited | 60 / min | MAC/OUI lookup. No key, no signup. |
| Free | $0 | Unlimited | 60 / min | Same, plus a key for higher burst headroom later. |
| Starter | $10 / mo | 10,000 / day | 120 / min | Router + compliance data. Card checkout. |
| Pro | $100 / mo | 100,000 / day | 300 / min | Router + compliance data at volume. Card checkout. |
The burst ceiling scales with the tier, so the daily figure is reachable on every plan: 60 requests per minute on Anonymous and Free, 120 on Starter, 300 on Pro. Your ceiling comes back on every response in the X-RateLimit-Burst header. Over any limit the API returns HTTP 429 with X-RateLimit-* headers and an upgrade hint, never a silent drop or an overage charge.
Questions about a plan, or a payment that did not go through? Email support@ssid.ai — a person reads it.
Free at every tier
These are properties of the response, so no plan gates them:
- Randomized-address detection — the
kindandrandomizedfields. It is a one-bit test, and charging for it would be charging for arithmetic. - The
sourcefield on every vendor answer, naming the IEEE registry the record came from. - The whole router directory (312 models) and the compliance index as web pages, plus /compliance/data.json with no auth.
- The MCP server, MIT-licensed, and every browser tool on the site.
When something else is the better buy
If all you need is a vendor name from an OUI, and you need it at volume, ssid.ai is not the cheapest option and there is no reason to pretend otherwise. macvendors.com publishes 100,000 requests a day at $40 a month against ssid.ai's $100, and a 1,000,000/day plan ssid.ai has no equivalent for. At 10,000 a day the two are the same price.
ssid.ai is the better buy when the vendor string is not the whole answer: when a private address has to be distinguished from a registry gap, when you need a router's default gateway IP and admin credentials traced to the manufacturer's own documentation, when you want the compliance dataset (72% of 312 tracked models no longer ship a universal default password), or when an agent needs to call it as an MCP tool. The full side-by-side is in ssid.ai vs macvendors.com.
FAQ
- How much does ssid.ai cost?
- MAC/OUI vendor lookup is free with no daily limit, on every tier, including with no key at all. The paid tiers — $10/month and $100/month — buy access to the live router default-login directory and the compliance record at volume: 10,000 and 100,000 calls a day. A per-minute burst ceiling applies everywhere to protect the service, not to create scarcity.
- Is there a free MAC address lookup API with no signup?
- Yes, and with no daily cap. GET https://ssid.ai/api/v1/lookup?mac=<address> works with no key, no account and no card, and there is no per-day ceiling on lookup at any tier. Only a per-minute burst limit applies, which exists to protect the service.
- What is the best value-for-money MAC address lookup API?
- For vendor strings alone, nothing — ssid.ai gives you MAC/OUI lookup free at any volume, so there is no price to compare. That field comes from the public IEEE registry and we do not think anyone should pay for it. What ssid.ai charges for is the router default-login directory and the compliance record: manufacturer-cited, per-model, kept current, and not published by anyone else. If you need vendor strings and nothing more, take the free tier here or use macvendors — either is fine, and neither should cost you anything worth budgeting.
- Do I need a credit card to start?
- No. Both free tiers work without one. A card is only involved on Starter and Pro, through Stripe checkout, and there is a billing portal for cancellation.
- What happens when I hit the limit?
- The API returns HTTP 429 with X-RateLimit-Limit and X-RateLimit-Remaining headers, a Retry-After value, and an upgrade hint naming the next tier. Requests are not silently dropped or billed as overage. There is also a per-minute burst ceiling, which scales with the tier so the daily figure stays reachable: 60 requests per minute on Anonymous and Free, 120 on Starter, 300 on Pro. Every response returns your ceiling in the X-RateLimit-Burst header.
- Is the data free to use in my own product?
- The compliance dataset and the report data are free to use with attribution to ssid.ai, and both publish a JSON feed with no auth. For redistribution or a commercial feed, email hello@ssid.ai. Terms are at ssid.ai/terms.
Volume beyond Pro, or a data-licensing arrangement: hello@ssid.ai. Refunds and redistribution terms are in the terms. How the data is sourced and corrected is on the trust center.