Napaxi
Napaxi is a mobile-native SDK for embedding on-device AI agent experiences directly into an app, giving Android, iOS and Flutter teams a shared Rust agent runtime with sandboxed tool execution while the host app keeps its own UI, accounts and model configuration.
The runtime handles the reusable pieces of an agent - sessions, workspace state, storage, tools, skills, MCP connections, platform hooks and background execution - while host apps retain ownership of product policy, permissions and which external capabilities an agent may reach. Local tool execution runs behind a sandbox with policy gates and host-controlled authorization, so a host app decides exactly which files, channels and background capabilities are exposed to an agent, and the runtime needs no Napaxi cloud server to operate.
Flutter is the first fully supported adapter and demo target, with Android and iOS SDK adapters sharing the same core API boundary. The SDK also connects apps, agents and channels to each other directly, supporting cross-app agent interaction and connections to external devices such as Bluetooth headsets or vehicle systems.
It is written in Rust with Flutter, Android and iOS adapters, and released under the GPL-3.0 license.