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FaceStream.AI — Third-Party Software Notices

This document outlines the third-party services and components used within our software. It provides information on the licenses, terms of use, and any relevant disclaimers associated with these third-party elements.

Effective September 7, 2027 Version 1.0.0

FaceStream.AI — Third-Party Software Notices

Version: 7 September 2026

FaceStream.AI is proprietary software of kumkju Beteiligungs- und Verwaltungsgesellschaft mbH. It includes or is built with third-party software, libraries, fonts, and machine-learning models. Those third-party components remain subject to their respective licence terms. Nothing in the FaceStream.AI proprietary licence is intended to restrict rights granted under an applicable third-party licence.

This notice is based on the current FaceStream.AI dependency and model inventory. For dependencies without a fixed version in the build requirements, the licence identified below is the licence family currently declared by the upstream project; the licence files shipped with the actual release artefact remain authoritative.

1. Runtime software and libraries

NumPy

  • Component: NumPy
  • Version: 1.26.4
  • Licence: BSD 3-Clause License
  • Copyright: NumPy Developers and contributors
  • Use in FaceStream.AI: numerical processing

Redistribution is permitted subject to the BSD 3-Clause License, including preservation of the applicable copyright notice, licence conditions, and disclaimer.

Pillow

  • Component: Pillow
  • Licence: MIT-CMU License
  • Copyright: Secret Labs AB; Fredrik Lundh and contributors; Jeffrey A. Clark and contributors
  • Use in FaceStream.AI: image processing

Redistribution is permitted subject to the MIT-CMU licence terms and preservation of the applicable copyright and permission notices.

OpenCV / opencv-contrib-python-headless

  • Component: OpenCV
  • Required package: opencv-contrib-python-headless~=4.10.0.84
  • OpenCV licence: Apache License 2.0
  • Python packaging/build scripts licence: MIT License
  • Use in FaceStream.AI: computer vision, DNN inference, tracking and image processing

The OpenCV Python wheels contain additional third-party binary components. In particular, the upstream OpenCV Python distribution states that its wheels ship FFmpeg under the GNU Lesser General Public License v2.1 (LGPL-2.1). The complete LICENSE-3RD-PARTY.txt supplied with the OpenCV wheel used for a FaceStream.AI release must be preserved and distributed with that release.

FaceStream.AI's proprietary licence does not replace or restrict any rights applicable to those third-party components.

Flask

  • Component: Flask
  • Licence: BSD 3-Clause License
  • Copyright: Pallets
  • Use in FaceStream.AI: local web application

Werkzeug

  • Component: Werkzeug
  • Required version: ~=3.0.3
  • Licence: BSD 3-Clause License
  • Copyright: Pallets
  • Use in FaceStream.AI: WSGI and HTTP utilities

Requests

  • Component: Requests
  • Required version: ~=2.32.3
  • Licence: Apache License 2.0
  • Use in FaceStream.AI: HTTP client functionality

Supervisor

  • Component: Supervisor
  • Licence: BSD-derived licence
  • Copyright: Supervisor authors and contributors
  • Use in FaceStream.AI: process supervision

The licence text included with the Supervisor version actually distributed with FaceStream.AI must be preserved with the release.

Eclipse Paho MQTT Python Client

  • Component: paho-mqtt
  • Licence: EPL-2.0 OR BSD-3-Clause
  • Use in FaceStream.AI: MQTT notification channel

For FaceStream.AI redistribution, the BSD-3-Clause alternative is relied upon where the distributed version offers that licence choice. The applicable copyright notice, BSD conditions, and disclaimer must be preserved.

XKNX

  • Component: XKNX
  • Licence: MIT License
  • Copyright: XKNX authors and contributors
  • Use in FaceStream.AI: KNX integration

Waitress

  • Component: Waitress
  • Licence: Zope Public License 2.1 (ZPL-2.1)
  • Copyright: Zope Foundation and contributors
  • Use in FaceStream.AI: production WSGI server

2. Machine-learning models and related code

YuNet Face Detection Model

  • Component: YuNet face detector
  • File used by FaceStream.AI: face_detection_yunet_2023mar.onnx
  • Upstream: OpenCV Zoo
  • Licence: MIT License
  • Use in FaceStream.AI: face detection

The OpenCV Zoo YuNet model directory expressly states that all files in that directory are licensed under the MIT License.

SFace Face Recognition Model

  • Component: SFace face recognition model
  • File used by FaceStream.AI: face_recognition_sface_2021dec.onnx
  • Upstream: OpenCV Zoo
  • Licence: Apache License 2.0
  • Use in FaceStream.AI: face embedding / recognition

The OpenCV Zoo SFace model directory expressly states that all files in that directory are licensed under the Apache License 2.0.

Silent-Face-Anti-Spoofing / MiniFASNet

  • Component: MiniFASNetV2 / MiniFASNetV1SE and adapted preprocessing code
  • Upstream: Minivision AI, Silent-Face-Anti-Spoofing
  • Licence: Apache License 2.0
  • Use in FaceStream.AI: liveness / anti-spoofing detection
  • FaceStream.AI format: ONNX models converted by FaceStream.AI from the original Minivision model weights

Minivision publishes the Silent-Face-Anti-Spoofing repository as an Apache-2.0 project and expressly describes the silent face anti-spoofing model, training architecture, preprocessing method, training/test scripts and open-source APK as open source. The original MiniFASNetV2 and MiniFASNetV1SE weight files are distributed within that same upstream repository. FaceStream.AI converts those original weights to ONNX for inference; the conversion does not create a separate third-party model provenance chain.

On that evidence, FaceStream.AI treats the published MiniFASNet model weights and the relevant copied/adapted Minivision source code as covered by the upstream Apache License 2.0. The Apache-2.0 copyright, licence and notice obligations must therefore be preserved, and modifications to copied source files should be identified where required by Apache-2.0.

This conclusion concerns the licence under which Minivision distributes the repository and model artefacts. It is not an independent representation by FaceStream.AI concerning Minivision's rights in any underlying training data.

3. Frontend components distributed with FaceStream.AI

Bootstrap

  • Component: Bootstrap
  • Version: 5.3.8
  • Licence: MIT License
  • Copyright: The Bootstrap Authors and Twitter, Inc.
  • Use in FaceStream.AI: frontend user interface

Popper

  • Component: @popperjs/core
  • Version: 2.11.8
  • Licence: MIT License
  • Use in FaceStream.AI: Bootstrap positioning functionality where included in the production bundle

Inter Variable Font

  • Component: @fontsource-variable/inter
  • Version: 5.3.0
  • Font licence: SIL Open Font License 1.1 (OFL-1.1)
  • Use in FaceStream.AI: user-interface typography

The Inter font software remains subject to the SIL Open Font License 1.1. The applicable copyright notice and OFL-1.1 licence must accompany redistribution of the font software.

4. Build tooling

FaceStream.AI may be built using development tools including Vite, Rollup, esbuild, Sass, ESLint, and Nuitka.

Build tools that are used only to produce FaceStream.AI artefacts and are not themselves redistributed as part of the product are not listed as runtime third-party components merely because they are present in a development lockfile.

Nuitka is distributed under the GNU Affero General Public License with an exception applicable to binaries created by Nuitka. Use of Nuitka to compile FaceStream.AI does not, by itself, require FaceStream.AI's proprietary source code or generated application binary to be licensed under the AGPL. Third-party libraries included in the resulting distribution remain governed by their own licences.

5. Licence texts and release packaging

The FaceStream.AI distribution should make the applicable third-party licence texts and notices available with the software. A release package should include, as applicable:

  • Apache License 2.0
  • MIT License and component-specific MIT copyright notices
  • BSD 3-Clause License and component-specific copyright notices
  • Pillow MIT-CMU License
  • Zope Public License 2.1
  • SIL Open Font License 1.1
  • GNU Lesser General Public License v2.1 for FFmpeg included in applicable OpenCV wheels
  • the unmodified LICENSE-3RD-PARTY.txt supplied with the exact OpenCV wheel used for the release
  • the licence file supplied with the exact Supervisor distribution
  • any upstream NOTICE file that Apache-2.0 requires to be preserved for a component actually distributed

Where an exact release artefact contains additional third-party binary libraries or notices, those artefact-specific notices take precedence over this inventory and must also be retained.

6. No endorsement

Names, trademarks, and project names of third-party licensors are used solely for attribution and identification. Their inclusion does not imply sponsorship, endorsement, or affiliation with FaceStream.AI or kumkju Beteiligungs- und Verwaltungsgesellschaft mbH.

7. Proprietary FaceStream.AI code

Except for third-party components expressly identified above or elsewhere in the distribution, FaceStream.AI and its proprietary source code, application logic, user interface, documentation, and other original materials are not licensed under the third-party open-source licences listed in this notice. They remain subject to the applicable FaceStream.AI proprietary licence terms.

Copyright © 2026 kumkju Beteiligungs- und Verwaltungsgesellschaft mbH.
FaceStream.AI is a product/brand of kumkju Beteiligungs- und Verwaltungsgesellschaft mbH.