# How to integrate Phone Harness MCP with Hermes

```json
{
  "title": "How to integrate Phone Harness MCP with Hermes",
  "toolkit": "Phone Harness",
  "toolkit_slug": "phone_harness",
  "framework": "Hermes",
  "framework_slug": "hermes-agent",
  "url": "https://composio.dev/toolkits/phone_harness/framework/hermes-agent",
  "markdown_url": "https://composio.dev/toolkits/phone_harness/framework/hermes-agent.md",
  "updated_at": "2026-11-06T05:31:55.873Z"
}
```

## Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.
This guide explains the easiest and most robust way to connect your Phone Harness account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

## Also integrate Phone Harness with

- [ChatGPT](https://composio.dev/toolkits/phone_harness/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/phone_harness/framework/claude-cowork)
- [Atomic Agent](https://composio.dev/toolkits/phone_harness/framework/atomic-agent)

## TL;DR

### What is Composio Connect?
Composio Connect is a consumer offering that lets anyone plug 1,500+ applications directly into their agent harness — including Hermes. It can:
- Search and load tools from relevant toolkits on-demand, reducing context usage.
- Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
- Manage app authentication end-to-end with zero manual overhead.

## Connect Phone Harness to Hermes

### Integrating Phone Harness with Hermes
### Using Composio Connect CLI
1. Install the Composio CLI
Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

```bash
curl -fsSL https://composio.dev/install | bash
```

## What is the Phone Harness MCP server, and what's possible with it?

The Phone Harness MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Phone Harness account. It provides structured and secure access so your agent can perform Phone Harness operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `PHONE_HARNESS_CREATE_API_KEY` | Create API Key | Create an account-wide API bearer key that can manage API keys. The raw key is shown only once; store it securely and never log it. |
| `PHONE_HARNESS_CREATE_SESSION` | Create Session | Start a temporary or saved Android emulator session and return its admitted session data plus the internally generated idempotency key. If the initial POST has an ambiguous transport failure, this action recovers or safely replays that same keyed request once. A provisioning result is not ready; poll PHONE_HARNESS_GET_SESSION until state is ready or terminal error. |
| `PHONE_HARNESS_ENABLE_ADB` | Enable ADB | Enable or re-enable ADB access for a ready Android session and return its current connection endpoint and sensitive unlock code. Repeated calls are idempotent. |
| `PHONE_HARNESS_END_SESSION` | End Session | Request that a Phone Harness session end and billing closure be recorded. A cleanup_pending result is asynchronous and continues to consume capacity; use the durable create receipt to confirm cleanup_complete. Repeating cleanup after the session is gone can return session_not_found; that outcome does not prove release or cleanup, even on a repeated call. |
| `PHONE_HARNESS_GET_ACCOUNT` | Get Account | Get the connected account's identity, balance, Android profile choices, active-session capacity, and whether a new session can be started. |
| `PHONE_HARNESS_GET_ADB` | Get ADB | Get the current ADB state for an Android session. Returns exactly a disabled result or the enabled connection endpoint and sensitive unlock credential. |
| `PHONE_HARNESS_GET_HEALTH` | Get API Health | Check public Phone Harness API-process liveness only. This does not certify phone availability, credits, capacity, video, or successful provisioning. |
| `PHONE_HARNESS_GET_OWNER_VIEWER` | Get Owner Viewer | Create a secret, short-lived capability for interactive owner control of a ready session. Embedding is restricted to the configured Phone Harness dashboard origin, not arbitrary third-party origins. Reconnecting does not extend the phone deadline. Return it only for secure handoff to the intended account owner; never log, persist, or publish it. |
| `PHONE_HARNESS_GET_RECENT_HISTORY` | Get Recent History | Return up to 100 finished sessions ordered by creation time descending. Use LIST_HISTORY instead when complete cursor-based traversal is needed. |
| `PHONE_HARNESS_GET_SESSION` | Get Session | Get one session's current lifecycle state, deadline, screen geometry, and ADB details. Use it to poll provisioning; state=error is a terminal startup failure, not success. |
| `PHONE_HARNESS_GET_SNAPSHOT` | Get Snapshot | Download the latest still image from a ready Phone Harness session as a file. The image is PNG or JPEG. A no-frame-yet response is retryable after the session is ready and has rendered a frame. |
| `PHONE_HARNESS_GET_VIEWER` | Create View-Only Link | Create a short-lived view-only link for an intended person to watch a live session. Return the link for secure handoff; it grants no interactive owner control and must not be logged or published. |
| `PHONE_HARNESS_LIST_API_KEYS` | List API Keys | List metadata for the connected account's API keys, including hashes, labels, hints, creation times, and revocation times. This action never returns raw bearer keys. |
| `PHONE_HARNESS_LIST_HISTORY` | List History | Return one cursor-paginated page of finished-session history in newest-first order, with a next cursor for complete traversal. |
| `PHONE_HARNESS_LIST_SESSIONS` | List Sessions | List all active account sessions, including provisioning, terminal-error, closing, and cleanup-pending entries. |
| `PHONE_HARNESS_RECOVER_CREATE_REQUEST` | Recover Create Request | Read the durable receipt for an idempotent session create to resolve an ambiguous create result or confirm asynchronous release cleanup. |
| `PHONE_HARNESS_RESET_ADB_CODE` | Reset ADB Code | Rotate the ADB unlock code for an Android session, invalidate the previous code, and close all existing ADB connections. Returns sensitive replacement connection details that must be used for subsequent connections. |
| `PHONE_HARNESS_RESET_DEVICE` | Reset Device | Irreversibly erase and reprovision an assigned iPhone, deleting its apps, accounts, and data. The reset takes a few minutes; poll PHONE_HARNESS_GET_ACCOUNT until the device state is available before starting it again. Phone Harness refuses the reset while a session holds the device. |
| `PHONE_HARNESS_RESET_PROFILE` | Reset Profile | Irreversibly delete the saved Android profile's apps, logins, and data. The next session using its profile ID starts with a fresh phone. Phone Harness refuses the reset while a live session holds the profile phone. |
| `PHONE_HARNESS_REVOKE_ADB` | Revoke ADB | Revoke ADB access for an Android session. This changes only ADB access: the phone session remains active and session billing continues unaffected. |
| `PHONE_HARNESS_REVOKE_API_KEY` | Revoke API Key | Idempotently revoke an API key by its hash. Identifier existence is not proven by a successful response, and active phone sessions are unaffected. Do not revoke the key used by the current connection if continued Phone Harness access is needed. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Phone Harness MCP server provides comprehensive access to Phone Harness operations through Composio. Once connected, Hermes can perform all major Phone Harness actions on your behalf using natural language commands.

## Complete Code

None listed.

## Conclusion

### Way Forward
With Phone Harness connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.
From here, you can extend Hermes further:
- Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
- Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
- Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.
If you run into trouble or want to share what you've built, join the [community](https://discord.com/invite/composio) or check out the [Docs](https://docs.composio.dev?utm_source=toolkits&utm_medium=framework_template&utm_campaign=hermes&utm_content=docs) for deeper configuration options.

## How to build Phone Harness MCP Agent with another framework

- [ChatGPT](https://composio.dev/toolkits/phone_harness/framework/chatgpt)
- [Claude Cowork](https://composio.dev/toolkits/phone_harness/framework/claude-cowork)
- [Atomic Agent](https://composio.dev/toolkits/phone_harness/framework/atomic-agent)

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Phone Harness MCP?

With a standalone Phone Harness MCP server, the agents and LLMs can only access a fixed set of Phone Harness tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Phone Harness and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Hermes?

Yes, you can. Hermes fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Phone Harness tools.

### Can I manage the permissions and scopes for Phone Harness while using Tool Router?

Yes, absolutely. You can configure which Phone Harness scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Phone Harness data and credentials are handled as safely as possible.

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