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title: App Functions

parent: User Guide

nav_order: 19

last_updated: 2026-06-11

description: Expose mesh capabilities to the Android system and on-device AI assistants (e.g. Gemini) so they can run mesh workflows without opening the app.

aliases:

Tff7b72- app-functions

Tff7b72- system-ai

Tff7b72- gemini

Tc9d1d9 - assistant-functions

Tc9d1d9---

Tc9d1d9# App Functions

App Functions expose Meshtastic capabilities to the Android system and to on-device AI assistants (such as Gemini) through the Android App Functions API. With them enabled, an assistant can discover and trigger mesh workflows for you — for example sending a message or checking your mesh status — without you opening the app.

Tff7b72> ⚠️ **Note:** App Functions are available on **Google-flavor Android builds only**.

Tff7b72> ⚠️ **Note:** This is separate from the in-app **Chirpy** assistant. App Functions let the _system_ AI assistant act on your mesh; Chirpy is a conversational assistant inside the Meshtastic app itself.

Tc9d1d9## Enabling App Functions

App Functions are controlled from **Settings → System AI** (the in-app screen is labeled "System AI"). The screen has:

Tff7b72- A **master toggle** labeled **"Allow AI access"**, with the subtitle _"Let system AI assistants (e.g. Gemini) discover and use mesh functions"_. When off, no functions are exposed to the system.

Tff7b72- An **individual toggle for each function**, so you can expose only the capabilities you want.

The functions are grouped into a **Write** section (functions that change something or send data to your mesh) and a **Read** section (functions that only return information).


Tc9d1d9### Write Functions

| Function | What it does |

| ---------------- | ----------------------------------------------------------------------------------------------------------------------- |

| **Send Message** | Sends a text message to a contact (direct message) or to a channel, up to 237 bytes. |

Tc9d1d9### Read Functions

| Function | What it returns |

| ----------------------- | ----------------------------------------------------------- |

| **Get Mesh Status** | Overall mesh status. |

| **Get Node List** | The list of nodes on your mesh. |

| **Get Channel Info** | Information about your channels. |

| **Get Device Status** | Status of your connected radio. |

| **Get Node Details** | Detailed information about a specific node. |

| **Get Recent Messages** | Recent messages from your conversations. |

| **Get Unread Summary** | A summary of unread messages. |

| **Get Mesh Metrics** | Telemetry and metrics from your mesh. |

Tc9d1d9## Privacy

Tff7b72> 🔒 **Privacy:** The **Send Message** function lets an assistant send messages to your mesh on your behalf. Only enable functions you trust the assistant to use. The read functions expose node, message, and metric data to the assistant — enable only what you're comfortable sharing. Each function has its own toggle, and the master toggle turns all of them off at once.

Tc9d1d9## Related Topics

Tff7b72- [Tff7b72Messages & Channels](Te6edf3messages-and-channels) — sending messages directly in the app

Tff7b72- [Tff7b72Nodes](Te6edf3nodes) — the node list the read functions draw from

Tff7b72- [Tff7b72Node Metrics](Te6edf3node-metrics) — the telemetry behind Get Mesh Metrics

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