Hermes is an open agent based on Nous Research’s Hermes models. NoClick runs it for you and adds your connected apps as tools.

How do I give Hermes access to an app?

Connect the app's integration node to the agent's tools handle and pick the operations to expose. Each becomes a callable tool.

Do I need my own infrastructure?

No. The harness runs in a hosted sandbox and NoClick handles credentials for the apps you connect.

Can Hermes use multiple apps at once?

Yes. Wire in several integrations and the agent can use them together in a single run.

Connect Hermes to Lettr

Run Hermes as a hosted agent in NoClick with Lettr wired into its tools handle. It can use Lettr directly while it works. No glue code, nothing to install. Click below to open a ready-to-run agent and connect your account.

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Opens a workflow with 25 tools ready to use.

Set up in minutes

The open button drops you into a guided setup. It asks exactly this, nothing else:

Choose where it runs
On your computer through your own Hermes, or hosted in the cloud. The rest of setup adapts to your choice:
Pick what it can do in Lettr
A preset of real Lettr operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect Lettr
One sign-in. The agent acts through your account, scoped to the operations you picked.
Add your personal MCP link
The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Hermes first calls in. Hermes connects when it next starts a session.
1. Run this in your terminal
$hermes mcp add noclick --url https://mcp.noclick.app/s/<your-link>
2. Answer no when asked if the server requires authentication — the link itself is the key
<your-link> is your personal server URL — setup mints it for you.

Tools Hermes gets

Pick the operations you want and each becomes a tool the agent can call directly while it works.

Lettr

25 tools

Check Connection

Validate API Key.

Send Email

Send Email.

List Emails

List Sent Emails.

List Email Events

List Email Events.

Get Email

Get Email Detail.

Schedule Email

Schedule Email.

List Scheduled Emails

List Scheduled Emails.

Get Scheduled Email

Get Scheduled Email.

Cancel Scheduled Email

Cancel Scheduled Email.

List Domains

List Domains.

Create Domain

Create Domain.

Get Domain

Get Domain.

Delete Domain

Delete Domain.

Verify Domain

Verify Domain.

List Templates

List Templates.

Create Template

Create Template.

Get Template

Get Template.

Update Template

Update Template.

Delete Template

Delete Template.

Get Template Merge Tags

Get Template Merge Tags.

List Contacts

List audience contacts.

Create Contact

Create a contact.

Get Contact

Show a contact.

Update Contact

Update a contact.

Delete Contact

Delete a contact.

About Hermes

Hermes is an open agent built on Nous Research’s Hermes models. NoClick runs it hosted and connects your apps to it as tools, so it can do real work across your systems. Wire an integration into the agent and Hermes can use that app’s operations directly while it reasons through a task. It is a strong pick when you want an open-model agent with genuine tool access.

Built on open Hermes models

Capable general reasoning

Flexible, open-model foundation

Hosted with apps wired in as tools