Add an existing contact to a segment in Resend. Use when you need to organize contacts into specific segments for targeted communication.

Cancel a scheduled email.

Create a new API key to authenticate communications with Resend. Use when you need to generate a new authentication token for API access.

Create a list of contacts.

Create a contact in Resend.

Tool to create a new contact property in Resend. Use when you need to define custom fields for contacts.

Tool to create a new contact in Resend. Use when you need to add a contact to Resend without specifying an audience.

Create a domain through the Resend Email API. The domain is created in a pending/unverified state and cannot be used for sending emails until DNS verification is completed.

Create a broadcast and leave it as an unsent draft. Use when you want to stage a campaign for review; this action never sends or schedules the broadcast, so a separate send step is always required.

Create a new segment for contacts to be added to. Use when you need a fresh list of contacts to target; segments are the modern replacement for audiences.

Tool to create a new email template in Resend. Use when you need to define reusable email templates with optional variables.

Tool to create a new topic to segment your audience. Use when you need to create a topic for organizing contacts by interests or preferences.

Tool to create a webhook to receive real-time notifications about email events. Use when you need to set up automated notifications for email status changes.

Remove an existing API key from Resend. Use when you need to revoke or delete an API key.

Remove an existing audience.

Delete a contact in Resend.

Tool to remove an existing contact by its ID. Use when you need to delete a contact directly without specifying an audience.

Remove an existing contact property from Resend.

Delete a domain through the Resend Email API. Deletion is irreversible; ensure no active email traffic or DNS configurations depend on the domain before calling.

Remove an existing segment. Use when you need to permanently delete a segment by its ID.

Remove an existing template. Use this action when you need to delete a template from Resend.

Tool to remove an existing topic in Resend. Use when you need to delete a topic.

Remove an existing webhook. Use this to delete a webhook configuration when you no longer need to receive event notifications at that endpoint.

Duplicate an existing template through the Resend Email API. Use when you need to create a copy of an existing template.

Retrieve a single broadcast by its ID. Use when you need to read back a broadcast's content, recipient segment, schedule and status before sending it.

Tool to retrieve a single contact from Resend by ID or email. Use when you need to get details of a specific contact using the global contacts endpoint.

Tool to retrieve a single contact property from Resend. Use when you need to get details about a specific contact property by its ID.

Retrieve a single attachment from a sent email. Use when you need to access attachment metadata and download URL.

Retrieve a single segment by its ID. Use when you need to get detailed information about a specific segment.

Retrieve a single template by ID or alias from Resend. Use when you need to view template details.

Tool to retrieve a single topic by its ID in Resend. Use when you need to fetch details of a specific topic.

Retrieve a single webhook for the authenticated user. Use this to get details about a specific webhook configuration including its endpoint, subscribed events, and signing secret.

Tool to retrieve a list of all contacts from Resend. Use when you need to fetch contacts across all audiences with optional pagination, or only the contacts of a single segment by passing segment_id.

Tool to retrieve a list of API keys for the authenticated user. Use when you need to view all API keys associated with the account, including pagination support for large result sets.

List all audiences.

Tool to retrieve a list of broadcasts. Use when you need to fetch all broadcasts or paginate through them.

Tool to retrieve a list of contact properties from Resend. Use when you need to view available contact property definitions.

List contacts in Resend.

Retrieve a list of segments that a contact is part of. Use when you need to determine which segments a specific contact belongs to.

Retrieve a list of topic subscriptions for a contact in Resend. Use when you need to check which topics a specific contact is subscribed to.

List all domains. Use the returned domain IDs as inputs for tools like RESEND_VERIFY_DOMAIN that require a domain_id.

Tool to retrieve a list of attachments from a sent email. Use when you need to get information about files attached to an email sent via Resend.

Tool to retrieve a list of emails sent by your team. Use when you need to fetch outbound emails from your account. Supports pagination with limit, after, and before parameters.

Tool to retrieve a list of received emails for the authenticated user. Use when you need to fetch incoming emails from the receiving endpoint.

Tool to retrieve a list of segments from Resend. Use when you need to view all available segments for audience management.

Tool to retrieve a list of templates from Resend. Use when you need to get all available templates with optional pagination support.

Tool to retrieve a list of topics for the authenticated user. Use when you need to fetch available topics with optional pagination support.

Retrieve a list of webhooks for the authenticated user. Use this to view all configured webhooks with their endpoints, event types, and status.

Publish a template through the Resend Email API. Use when you need to make a template publicly available.

Remove an existing contact from a segment. Use when you need to disassociate a contact from a specific segment.

Retrieve a single audience.

Retrieve a contact in Resend.

Retrieve a single domain.

Retrieve a single email.

Trigger up to 100 batch emails at once. Use when you need to send multiple emails in a single API request.

Send an email using Resend. Confirm recipients and content with the user before invoking — sends are irreversible. All recipients must be listed explicitly via `to`, `cc`, or `bcc`; audience-based sending is unsupported. Render HTML or plain text externally before passing via `html` or `text`.

Update an existing broadcast in Resend. Use when you need to modify broadcast details like name, subject, content, or recipients.

Tool to update an existing contact in Resend by ID or email. Use when you need to modify contact details such as name or subscription status.

Update an existing contact property in Resend. Only the fallback_value can be updated; the key and type fields cannot be changed after creation.

Update an existing domain.

Update a broadcast that is still an unsent draft. Use when you need to revise a staged campaign; the broadcast is read back first and the update is refused unless its status is 'draft' and it has no scheduled send time.

Update a scheduled email.

Tool to update an existing email template in Resend. Use when you need to modify template properties such as name, subject, HTML content, or variables.

Tool to update an existing topic in Resend. Use when you need to modify the name of a topic.

Tool to update an existing webhook configuration. Use when you need to modify the endpoint URL, change event subscriptions, or enable/disable a webhook.

Verify a domain through the Resend Email API. DNS records must fully propagate before verification succeeds; avoid immediate retries after DNS setup.