Marketing

AI agents that use Resend

UtilitySpaces gives an AI agent scoped access to Resend through its own encrypted connection, not your password. The agent can call 4 named Resend tools, and the one that writes waits for a person's approval unless an admin has set the connection to run without asking. Every call is written to a hash-chained audit log with its arguments and its result.

What an agent can do in Resend

Send transactional email through Resend and inspect sent emails, domains, and audiences. An agent calls these by name, and matching is exact.

Every tool a Resend connection exposes, and whether it writes, which waits for approval by default
Tool	What it does	Waits for approval by default
List domains	List verified sending domains.	No — read only
Get email	Get a sent email's status by id.	No — read only
List audiences	List contact audiences.	No — read only
Send email	Send a transactional email.	Yes — it writes

3 read tools, 1 write tool. Generated from the connector catalogue the product runs on, so it cannot list a tool that does not exist.

What teams hand an agent in Resend

Product teams hand an agent the plumbing around transactional email: List domains confirms sending is verified, Get email answers whether a specific message went out, and List audiences shows the contact sets. Send email is the one write, and it waits for a person unless an admin has set this connection to run without asking.

Answer whether the reset email actually sent by fetching the email's status by id instead of guessing.
Check the sending domains are still verified before a launch, and raise it if one is not.
Send a one-off transactional email, such as a manual receipt or an apology note (after a person approves it)

Before you let it write, or keep out: Transactional email lands in real inboxes under your domain's reputation. Think before letting Send email run without asking, and never hand the agent a list to loop over -- a connection set that way sends every call.

What waits for a person

Reads run on their own. These do not — each one waits in Approvals for an owner or admin unless an admin has set this connection to run writes without asking, and every call toResend, approved, rejected or unattended, is logged.

Send email POST

What connecting Resend takes

Resend uses an API key you create in Resend and paste in once. A workspace admin sets the connection up; the fields are:

API Key

Credentials are encrypted and bound to your workspace, never read back, and every outbound call passes one guarded fetch — the connector security posture sets out exactly how, and the security page covers the platform around it.

Where Resend fits

Give an agent Resend work by writing a message in the inbox, or put its tools in a scheduled flow. What the run cost is on the cost breakdown.

Other marketing integrations: Facebook Pages, Instagram Business, Listmonk. Or see every application agents can connect to.

See it doing your actual work

Open a demo workspace, connect one app, and give an agent a real job. No card, no sales call.

Try the demo See pricing

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