What does it mean to connect an app to Claude Code?

You wire an integration node into the agent's tools handle. Each operation that app exposes becomes a tool Claude Code can call directly, so it can take real actions in that app instead of only describing them.

Do I need to write any code to set this up?

No. You pick the integrations, click to open the agent in NoClick, connect your accounts, and the tools are ready. There is no glue code to maintain.

Does Claude Code run on my own machine?

No. NoClick runs the harness for you in a hosted sandbox, so there is nothing to install and the agent can run on a schedule or from a trigger.

Can Claude Code use more than one app in a single run?

Yes. Wire as many integrations into the same agent as you need and it can use all of them together while completing a task.

Claude Code

Connect Claude Code to Lettr

Run Claude Code 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 Claude Code, 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 Claude Code first calls in. Claude Code connects when a session starts — run claude, or restart a running one.
Run this in your terminal
$claude mcp add --transport http noclick https://mcp.noclick.app/s/<your-link>
<your-link> is your personal server URL — setup mints it for you.

Tools Claude Code 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 Claude Code

Claude Code is Anthropic's command-line coding agent. In NoClick you run it as a hosted agent and connect your real apps to its tools handle, so it does far more than write code. Wire in an integration and Claude Code can read and act on Slack, Linear, your database, and more on its own, calling each one as a tool while it works. It is the same capable agent, pointed at your actual workflows instead of a sandbox.

Careful multi-step planning before it acts

Reliable on long, structured tasks

Reads context thoroughly before making changes

Comfortable across code, data, and APIs