How do I create a Resend API Key?

Log in to the [**Resend Dashboard**](https://resend.com/api-keys), go to **Settings > API Keys**, click **Create API Key**, select the permission scope (Full Access, Sending, or Domains), give it a name and copy the key immediately — it starts with `re_` and won't be shown again.

Can I send HTML emails with attachments?

Yes! Use the `send_email` tool with the `html` parameter for HTML body content and optionally include attachments. You can also provide a `text` fallback for email clients that don't render HTML. Attachments are passed as objects with filename, content (base64) and content_type.

How do I verify a domain for sending?

Use `create_domain` with your domain name (e.g. "example.com"). Resend will return the SPF and DKIM DNS records you need to add to your DNS provider. After adding the records, use `verify_domain` with the domain ID to trigger re-verification. The domain status will change to "verified" once DNS propagation is complete.

What are the API rate limits?

Resend allows 5 requests per second per team, shared across all API keys. If you exceed this limit, you'll receive a 429 response. Rate limits can be increased by contacting Resend support for verified senders.

Resend MCP Connector for Claude

A+

Send emails and manage domains via Resend — send transactional emails, track deliveries, manage domains and API keys from any AI agent.

14 tools Official Updated Jun 28, 2026 Official Vinkius Partner

More Details Connect to Claude

Connect your Resend account to any AI agent and take full control of your email infrastructure through natural conversation.

What you can do

Email Sending — Send transactional emails with HTML/text bodies, attachments, CC/BCC and reply-to addresses
Batch Sending — Send up to 100 emails in a single API call for bulk notifications
Email Tracking — Retrieve sent email details including delivery status, bounces and complaints
Domain Management — Add, verify, update and delete sending domains with DNS record guidance
API Key Management — Create, list and delete API keys with scoped permissions (full_access, sending, domains)
Scheduled Emails — Update or cancel previously scheduled email deliveries

How it works

Subscribe to this server
Enter your Resend API Key
Start sending emails from Claude, Cursor, or any MCP-compatible client

No more switching to the Resend dashboard to check delivery status or add a new domain. Your AI acts as a dedicated email operations engineer.

Who is this for?

Developers — quickly send transactional emails, check delivery status and manage domains without leaving your IDE
DevOps Engineers — audit sent email logs, verify domain DNS records and manage API key permissions
Product Teams — send batch notifications, review delivery metrics and manage email templates via conversation

transactional-emailemail-apideliverabilityemail-analyticsdomain-management

14 tools expose this connector's capabilities to your AI agent.

verify_domain

Use this after adding or updating SPF/DKIM records in your DNS provider. Returns the updated domain status. Verify a domain's DNS records

cancel_email

The email must be in "scheduled" status. Provide the email ID. Cancel a scheduled email

create_api_key

Requires a name and optionally the permission scope (full_access, sending, domains). Returns the key value which is shown ONLY ONCE — make sure to copy it immediately. Create a new API key in Resend

create_domain

Requires the domain name (e.g. "example.com"). Optionally set the AWS SES region. Returns the domain ID and the DNS records (SPF, DKIM) you need to configure for verification. Add a new domain to Resend

delete_api_key

The key will no longer be able to authenticate API requests. Provide the API key ID from list_api_keys. WARNING: this action is irreversible. Delete an API key from Resend

delete_domain

All DNS records associated with the domain will be invalidated. Provide the domain ID. WARNING: this action is irreversible. Delete a domain from Resend

get_domain

Provide the domain ID from list_domains. Get details for a specific domain

get_email

Returns the sender, recipient(s), subject, creation date, last event (delivered, bounced, complained) and scheduled_at if applicable. Get details for a sent email

list_api_keys

Returns key name, ID, creation date and permission scope (full_access, sending, domains). Note: actual key values are NOT returned for security. List API keys in your Resend account

list_domains

Each domain shows its name, status (verified, not_verified, pending), region, SPF/DKIM records and creation date. Use this to verify which domains are ready for sending emails. List verified domains in Resend

list_emails

Returns email ID, from, to, subject, creation date and last event status. Results are paginated and ordered by most recent first. List recently sent emails

send_batch_emails

Provide a JSON array of email objects, each with from, to, subject and optionally html/text. Each email in the batch is counted individually against your quota. Returns an array of results with IDs for each email. Send a batch of emails via Resend

send_email

Requires the sender address (from), recipient(s) (to) and subject. Optionally provide HTML body, plain text body, reply-to address, CC/BCC recipients and attachments. The from address must use a verified domain configured in Resend. Returns the email ID for tracking. Send an email via Resend

update_email

The email must be in "scheduled" status. Provide the email ID and the new scheduled_at timestamp (ISO 8601). Update a scheduled email

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