Ambit — data licences

Last updated 2026-08-18

Ambit identifies devices from three public datasets. Two of them are open registries. The third has a licence saying its notice must travel along with every redistribution, and this counts as one, so here it is.

Rapid7 Recog

Fingerprints that turn the way a service answers into an actual product name. Redistributed under the BSD 2-Clause licence, which ships inside the app and which the data server also republishes at https://ambit.kynto.eu/v1/recog-LICENSE.txt.

Copyright (c) 2015-present, Rapid7, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

IEEE MA-L registry

The public registry mapping hardware-address prefixes to the companies that hold them. Published by the IEEE Registration Authority as a public registry.

CSA Distributed Compliance Ledger

The Connectivity Standards Alliance's public ledger of certified Matter vendors and products, used to name smart-home devices that identify themselves as Matter capable.

How the data reaches the app

I rebuild these weekly and publish them as static files at https://ambit.kynto.eu/v1, each with a SHA-256 in a manifest you're welcome to read yourself. All of them also ship inside the app, so it can identify devices with no network access whatsoever. The weekly fetch is only there to keep things current.