SEPIA

sepia-framework.github.io · checked 4 Oct 2026

#20 · AI Assistant

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How it plugs in

—Public API

NoOpen source

YesFree tier

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SEPIA is an open-source framework and cross-platform app for building a private, customizable digital voice assistant.

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Runs on

Web
Windows
Mac
Linux
iOS
Android

Facts

Website: sepia-framework.github.io
Price: Free tier
Free trial: Not stated
Client platforms: The client documentation describes browser use on desktop, Android, and iOS; on iOS it instructs users to open the app in Safari and add it as a PWA.
Customization: Users can create commands in the app, build voice-controlled services with the Java SDK, or replace framework modules.
Dialog: SEPIA handles spoken or typed natural-language requests and can ask follow-up questions when a service needs more information.
Hosting limit: The documentation says SEPIA is not currently hosting public servers, so users need access to their own server or one hosted by a friend or company.
How it works: Its self-hosted server runs core modules including the database, user-account management, natural-language understanding, and chat.
Integrations: The documentation names openHAB as an example smart-home integration, and the SEPIA-Home v2.7.0 release notes state that it adds Home Assistant support.
Mesh Nodes: SEPIA Mesh Nodes can connect to the assistant and execute programs on their device; users can create voice commands or upload programs through the Control HUB.
Privacy: The homepage says users control their data in a self-hosted environment and describes the server as the backbone of the framework.
Security setup: The installation documentation describes self-signed SSL for private networks and Let's Encrypt SSL for servers reachable from outside the network.
Server platforms: The installation documentation describes SEPIA-Home for Windows, Mac, and Linux, and provides Raspberry Pi installation instructions.
Smart services: The documentation lists services including news, radio, timers, alarms, reminders, to-do and shopping lists, smart home, navigation, weather, Wikipedia, and web search.
Speech: The client supports speech recognition through native platform APIs or a custom open-source STT server, and text-to-speech through native APIs or compatible server tools.

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