Documentation
OACP Protocol
What OACP is, what files an app ships, and how discovery and invocation work on Android.
Read the protocol ›
Hark
The open-source assistant built on OACP. Discovers apps, resolves commands on-device, and dispatches Android intents.
Meet Hark ›
Kotlin SDK
The Android SDK you can use today. Add a receiver, two asset files, and one manifest entry.
Get the SDK ›
Roadmap
What is already shipped, what is in progress, and what is intentionally not documented yet.
See the roadmap ›
Recommended reading order
- Start with What is OACP? if you need the protocol model.
- Read Hark Overview if you want to see the open-source assistant end to end.
- Jump to Kotlin Quick Start if you want to expose capabilities from an Android app now.
- Use Roadmap only after the basics are clear.
Quick links
- Protocol spec: github.com/OpenAppCapabilityProtocol/oacp
- Organization: github.com/OpenAppCapabilityProtocol