Connect Hermes Agent

Hermes Agent by Nous Research is a personal AI agent. It runs as a desktop app and in the terminal; both use the same settings, so set it up once.

Before you start: create a Fortytwo API key and buy credits — see Quickstart, step 1. Give each agent its own key with a Spend limit.

Setting	Value
Base URL	`https://api.fortytwo.network/v1`
Model ID	`qwen/qwen3.8-27b`

Desktop app
Terminal

Install Hermes

Download the installer from hermes-agent.nousresearch.com/desktop . Install it.On Linux, install Hermes in the terminal (see the Terminal tab).

Hermes onboarding: skip the provider choice

Open Hermes. On the first screen, Let’s get you setup with Hermes Agent, choose I’ll choose a provider later.

Add Fortytwo as a custom endpoint

Open Settings (Cmd+, on macOS, Ctrl+, on Windows).
Open Providers → Custom Endpoints.
Fill in the endpoint form:

Field	Enter
Name	`Fortytwo`
Provider ID	`fortytwo`
Endpoint URL	`https://api.fortytwo.network/v1`
Default Model	`qwen/qwen3.8-27b`
Context	`262144`
API Key	Your Fortytwo API key

Keep Use for new chats on.

Press Test. Hermes shows Endpoint is reachable. Found N models. Test before you save: after Save, Test reports that the endpoint rejected the API key, though the saved endpoint works.
Press Save. Hermes shows Custom endpoint saved and lists Fortytwo under Custom Endpoints as Active.

Start a chat

Press Cmd+N (Ctrl+N on Windows). In the model picker next to the message box, check that Qwen3.8 27b is selected under Fortytwo, then send a message. The same picker turns Thinking on or off.

Hermes Desktop: Qwen3.8 27b selected under Fortytwo

Hermes Desktop: chat with qwen/qwen3.8-27b

Install Hermes

On macOS, Linux or WSL2:

curl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash

On Windows, in PowerShell:

iex (irm https://hermes-agent.nousresearch.com/install.ps1)

Open a new terminal window when the installer finishes.

Choose a custom endpoint

Run:

hermes model

In Select provider, scroll to the end of the list and choose Custom endpoint (enter URL manually).

Hermes Agent: Custom endpoint in the provider list

Answer the prompts

Prompt	Answer
`API base URL`	`https://api.fortytwo.network/v1`
`API key`	Your Fortytwo API key
`Select API compatibility mode`	`2` (Chat Completions)
`Use this model?` (`qwen/qwen3.8-27b`)	`y`
`Context length in tokens`	`262144`
`Display name`	`Fortytwo`
`Select reasoning effort`	Press Enter to keep medium

Hermes saves the key in ~/.hermes/.env and sets qwen/qwen3.8-27b as the default model.

Hermes Agent: Fortytwo endpoint configured

Start a chat

hermes

On the first start, Hermes asks Help improve Hermes? The answer only decides whether Hermes sends usage metrics to Nous Research, the maker of Hermes, not to Fortytwo. The default, No thanks, sends nothing; change it later with hermes setup telemetry.The status line at the bottom of the screen shows qwen3.8-27b.

Hermes needs a context window of at least 64,000 tokens; qwen/qwen3.8-27b has 262,144. More settings: Hermes custom providers .

Something not working with your agent, or using one we have not listed? Tell us in the platform: Feedback for ideas and small bugs, Contact support if it blocks your work, or Report a security issue.

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