Can I send transactional emails with the Resend node?

Yes. The send-email operation delivers an email with an HTML or plain-text body, CC, BCC, and reply-to addresses. The sender must be on a domain you have verified in Resend.

Can I schedule emails to send later?

You can. The send-email operation accepts a scheduled time written in natural language, such as in 1 hour, or as an ISO 8601 timestamp. Scheduled emails can also be rescheduled or cancelled later.

Can a workflow react to email events from Resend?

Yes. The receive-webhook operation works as a trigger and fires on events like delivered, bounced, opened, and complained, so your workflow can respond to what happens after an email is sent.

How do I check whether an email was delivered?

Use the get-email operation with the ID returned when the email was sent. It returns the current status and details so a later step can branch on whether delivery succeeded.

What do I need to connect Resend?

You need a Resend API key, which starts with re_ and is created on the Resend API Keys page. Add it as the credential on the node and you can start sending email immediately.

How does Codex get access to my apps?

You connect an integration to the agent's tools handle and select which operations to expose. Codex then calls those operations as tools, authenticated with the credentials you connect in NoClick.

Is this the same Codex CLI?

Yes. NoClick runs the Codex harness for you and adds your connected apps as tools. You do not have to install or manage anything locally.

Can I trigger a Codex agent automatically?

Yes. Because it runs hosted, you can start it from a schedule, a webhook, or another app event, not just by hand.

Which apps can I connect?

Any of NoClick’s tool-provider integrations, from Slack and Linear to GitHub, Notion, Google Sheets, Postgres, and dozens more.

Codex

Connect Codex to Resend

Connect an AI agent to your Resend account as a tool and it sends and manages email itself instead of describing the send. It can send an email, look one up, reschedule a scheduled send, cancel one before it goes out, and receive webhook events, calling each operation as a tool while it works. In NoClick it connects to a hosted coding agent that can run a full send-and-follow-up loop without you touching the dashboard.

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Opens a workflow with 4 tools ready to use.

What happens next

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 Codex, or hosted in the cloud. The rest of setup adapts to your choice:
Pick what it can do in Resend
A preset of real Resend operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect Resend
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 Codex first calls in. Codex connects when a session starts — run codex, or restart a running one.
Run this in your terminal
$codex mcp add noclick --url https://mcp.noclick.app/s/<your-link>
<your-link> is your personal server URL — setup mints it for you.

Exact capabilities

Tools Codex gets

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

Resend

4 tools

Send Email

Send a transactional email through Resend.

Get Email

Retrieve the status and details of a sent email.

Reschedule Email

Reschedule a previously scheduled email.

Cancel Email

Cancel a scheduled email before it is sent.

Starting points

What you can build

Send a welcome email automatically when a new user signs up.

Schedule a follow-up email to go out two days after an event using natural-language timing.

Check the delivery status of a previously sent email before deciding the next step.

Cancel a scheduled email if the recipient has already converted in the meantime.

Trigger a workflow when an email bounces or a recipient marks it as spam.

Reschedule a queued reminder email when an appointment time changes.

Meet the runner

About Codex

Codex is OpenAI's command-line coding agent. NoClick runs it as a hosted agent and lets you connect your apps to it as tools, turning it from a coding assistant into an operator that can act across your systems. Connect an integration to the agent and Codex can query, create, and update records in that app directly. You keep the Codex experience and give it real reach into the tools your team already uses.

Fast, capable code generation and editing

Good at well-scoped, concrete tasks

Strong at API and data manipulation

Familiar to teams already on OpenAI tooling

Good to know