# How to connect Unione to Hermes Agent (paste one key, 32 tools)

> Connect Unione to Hermes with ClawLink: paste your Unione key once and 32 tools work from chat. No MCP server to run, nothing stored on your machine.

Web version: https://claw-link.dev/hermes/unione

Most guides for giving Hermes Agent Unione access start with registering your own OAuth app or pasting API keys into env files, then leave the token refresh and tool wiring to you. ClawLink gives Hermes a more practical Unione setup: pair once in the browser and your always-on Hermes agent can act on Unione for you, reading and doing real work on your behalf with no auth, token refresh, or tool wiring to build yourself.

## Setup

It takes three steps to connect Hermes to Unione.

1. **Install ClawLink** — add the plugin to Hermes Agent once.
2. **Connect Unione** — one-click OAuth in the ClawLink dashboard.
3. **Use it from chat** — ask Hermes Agent in plain English.

**Paste this into Hermes to set up ClawLink:**

> Set up ClawLink for Hermes and tell me when it's ready.
> 1. Install the plugin: `hermes plugins install ClawLink-HQ/hermes-plugin --enable`
> 2. Start pairing with `hermes clawlink begin`. It prints an approval link, so show me the link and stop, don't wait.
> 3. I'll approve it in my browser, then reply "approved".
> 4. When I say approved, finish setup: `hermes clawlink finish`
> 5. Then run `hermes clawlink test` and tell me whether ClawLink is ready.

**Alternative for any agent (no plugin needed):** if the Hermes Agent plugin route isn't available or doesn't work, any AI agent with shell access can use the ClawLink CLI instead:

```bash
npx -y @useclawlink/cli login          # sign in via browser — no API key to paste
npx -y @useclawlink/cli connect unione  # connect Unione (browser OAuth)
npx -y @useclawlink/cli actions unione  # list available actions
npx -y @useclawlink/cli run unione <action> --input '<json>'  # execute (add --confirm for writes)
```

### Install by command

The prompt above walks Hermes through this. By hand, it is four commands and a browser approval:

```bash
hermes plugins install ClawLink-HQ/hermes-plugin --enable
hermes clawlink begin    # prints an approval link — open it and approve
hermes clawlink finish   # after approving in the browser
hermes clawlink test
```

Then connect Unione in the [ClawLink dashboard](https://claw-link.dev/dashboard) — paste your Unione API key once.

Verify the connection by asking Hermes:

> Use Unione to email balance and walk me through the result in plain English.

### Using a different agent?

The Hermes plugin is one client of ClawLink's MCP server. Claude Code, Cursor, Codex, or any agent that can run a shell command pairs with the same ClawLink account through the CLI:

```bash
npx -y @useclawlink/cli login
```

`login` opens the same browser approval and stores a credential locally. Once Unione is connected in the dashboard, that agent calls the same 32 Unione tools over MCP. Full setup for MCP clients and shell agents: [connect apps to any AI agent](https://claw-link.dev/learn/connect-apps-to-any-ai-agent).

## Unione MCP for Hermes

Looking for a Unione MCP server for Hermes Agent? ClawLink connects Unione to Hermes Agent and exposes 32 Unione tools your agent can call over [MCP](https://claw-link.dev/learn/what-is-an-mcp-server), with [hosted auth](https://claw-link.dev/learn/oauth-for-ai-agents) and nothing to run or maintain yourself. Using OpenClaw instead? The [OpenClaw Unione integration](https://claw-link.dev/openclaw/unione) works the same way.

## What the Hermes Agent Unione integration can do

32 Unione tools are ready for Hermes Agent once the account is connected. The 27 below are the ones people reach for most; your agent can call all 32.

### 27 of 32 Unione tools for Hermes

| Tool | What it does |
|---|---|
| **Email balance** `unione_email_balance` | Retrieve current account balance |
| **Email event get** `unione_email_event_get` | Retrieve details of a specific email event by its ID |
| **Email get** `unione_email_get` | Retrieve detailed information about a specific email send job |
| **Email list** `unione_email_list` | Export email events within a specified time frame |
| **Email smtp** `unione_email_smtp` | Retrieve SMTP server details and credentials |
| **Email statistics** `unione_email_statistics` | Retrieve email sending statistics over a specified time range |
| **Email validate batch** `unione_email_validate_batch` | Validate multiple email addresses in a batch |
| **Email webhook types** `unione_email_webhook_types` | Retrieve supported email webhook event types |
| **Event dump create** `unione_event_dump_create` | Create an asynchronous CSV event dump |
| **Event dump list** `unione_event_dump_list` | Retrieve the full list of event dumps |
| **Get event dump** `unione_get_event_dump` | Retrieve the status and download URLs of an event dump |
| **Get suppression** `unione_get_suppression` | Check if an email is suppressed and retrieve the reason and date |
| **Get template** `unione_get_template` | Get template properties by ID |
| **Get webhook** `unione_get_webhook` | Retrieve webhook configuration by its URL |
| **Suppression list** `unione_suppression_list` | Return the suppression list since a given date |
| **Tag list** `unione_tag_list` | Retrieve all user-defined tags |
| **Template list** `unione_template_list` | List email templates |
| **Email resend** `unione_email_resend` | Resend a previously sent email by its job ID |
| **Email resubscribe** `unione_email_resubscribe` | Resubscribe a recipient who previously unsubscribed |
| **Email resume** `unione_email_resume` | Resume a paused transactional email by its job ID |
| **Email validate retry** `unione_email_validate_retry` | Retry an email validation request |
| **Schedule email** `unione_schedule_email` | Schedule a transactional email up to 24 hours ahead |
| **Template set** `unione_template_set` | Set or update an email template |
| **Webhook set** `unione_webhook_set` | Set or edit a webhook event notification handler |
| **Email cancel** `unione_email_cancel` | Cancel a scheduled transactional email by its job ID |
| **Email domain** `unione_email_domain` | Manage sender domains in UniOne |
| **Email unsubscribe** `unione_email_unsubscribe` | Unsubscribe an email from future emails |

## Example prompts

**Email Balance**

> Use Unione to email balance and walk me through the result in plain English.

**Email Event Get**

> Use Unione to email event get and walk me through the result in plain English.

**Email Get**

> Use Unione to email get and walk me through the result in plain English.

**Email List**

> Use Unione to email list and walk me through the result in plain English.

## ClawLink vs. building it yourself

The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want Unione working from chat.

| | Manual | ClawLink |
|---|---|---|
| **Credential handling** | Collect, validate, store, and rotate the Unione API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected Unione account becomes available to the agent without you building credential management. |
| **Ongoing maintenance** | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for Unione. | ClawLink handles the repetitive integration plumbing so your team can focus on the workflow instead of the infrastructure. |
| **Agent usability** | You still need to expose the right Unione actions to the runtime in a format your agent can reliably use. | 32 tools for Unione are already exposed through ClawLink, so the agent can read and act from chat immediately. |

## ClawLink vs. Composio

Composio also exposes Unione to AI agents. It is developer infrastructure: Python and TypeScript SDKs, an MCP server, and a catalog past 1,000 apps, aimed at teams shipping agent products. ClawLink is built for Hermes Agent users instead. You install the plugin once, connect Unione in the browser, and the 32 tools above work from chat. There is no SDK and no config file, and the Unione key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full [Composio alternatives](https://claw-link.dev/hub/composio-alternatives) comparison.

### Hermes paired but still can't use Unione
Pairing is a two-step handshake: run `hermes clawlink begin`, approve the link in your browser, then run `hermes clawlink finish`. If you ran finish before approving, or the approval link expired, run `hermes clawlink begin` again to get a fresh link. Confirm the plugin was installed with `--enable`, then verify with `hermes clawlink test`.

### Connection succeeds but no tools appear
Reconnect Unione from the dashboard, then start a fresh chat if the runtime still has the old tool catalog loaded.

### "Tool schema not loaded yet" error when calling Unione tools
Unione tool schemas load on demand the first time a tool runs and are cached after that, so this error usually clears on its own: wait a few seconds and retry the same request. If every Unione call keeps failing with it in a fresh chat, reconnect from the dashboard, and contact support if it still persists — that pattern points to a configuration problem on our side, not something you can fix by reconnecting again.

### Unione returns 403 or "permission denied" on one action while others work
Two usual causes. The connected account may not have access to the specific workspace, inbox, store, or project in the request — check that first. If access looks right, the agent may have sent a placeholder value (like "YOUR_ID" or an example id from documentation) instead of a real one: ask it to run a list or search tool first, then retry the action with a real id from those results. Most failures at this stage are one of these two, not ClawLink bugs.

### API key setup works but results look incomplete
Double-check that the API key for Unione has the right scopes or account access. A valid key can still be too limited for some reads or writes.

### Is there a Hermes Agent Unione integration?
Yes. ClawLink is the fastest way to connect Hermes to Unione: link your Unione account once in the browser and Hermes Agent can call the Unione API through 32 ready-made tools — no custom code or token handling.

### How do I connect Unione to Hermes with ClawLink?
Install the plugin with `hermes plugins install ClawLink-HQ/hermes-plugin --enable`, then pair once: run `hermes clawlink begin`, approve the link in your browser, and run `hermes clawlink finish`. Connect Unione in the dashboard and Hermes can use it from the next message — no config files, and the Unione key you paste is stored server-side instead of in your environment.

### How long does it take to connect Unione to Hermes Agent?
About two minutes. Sign in, click Connect next to Unione in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.

### Why use ClawLink instead of wiring Unione up myself?
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want Unione working from chat.

### Hermes paired but still can't use Unione
Pairing is a two-step handshake: run `hermes clawlink begin`, approve the link in your browser, then run `hermes clawlink finish`. If you ran finish before approving, or the approval link expired, run `hermes clawlink begin` again to get a fresh link. Confirm the plugin was installed with `--enable`, then verify with `hermes clawlink test`.

## Related

- [Hermes ActiveCampaign integration](https://claw-link.dev/hermes/activecampaign) — Marketing automation, CRM, and email marketing
- [Benchmark Email tools](https://claw-link.dev/hermes/benchmark-email) — Benchmark Email is a comprehensive email marketing platform offering tools for creating, sending, and analyzing email campaigns.
- [Hermes Mailchimp integration](https://claw-link.dev/hermes/mailchimp) — Create email campaigns and manage audiences
