Add Resend to your AI agent

Create a Resend automation from workflow steps and connections. Use when defining a new automation with at least one trigger step. The automation is disabled by default; set status to enabled to enable it on creation.

Create a global contact and add it to the segment identified by audienceId.

Create a contact import from a CSV file, optionally mapping columns and applying segments and topic subscriptions.

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

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.

Start a claim for a domain another Resend account has already verified. Recreates the domain under your account with fresh DKIM keys; the previous account's DNS records cannot be reused. Add the returned TXT record to DNS to prove ownership. An identical pending claim is returned unchanged.

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 Resend event definition, optionally with a typed payload schema. Use when registering a custom event for automations; this does not emit an event. Event names cannot start with the reserved resend: prefix.

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.

Create a Resend suppression for an email address to prevent sending to it.

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 a segment using the legacy audience action and response shape.

Remove an existing automation from Resend using its automation ID.

Remove an existing broadcast that is in draft status. Use this action to delete a draft broadcast from Resend.

Remove a contact from the segment identified by audienceId, preserving the global contact. Uses the replacement segment-membership API so a legacy audience-scoped deletion does not also remove the contact from unrelated segments.

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.

Delete an existing Resend event using its event ID (UUID) or event name.

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

Remove a Resend suppression using its suppression ID or email address.

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 automation by its ID and return the new automation's ID.

Create a new draft broadcast from an existing broadcast. Copies the segment, topic, sender, subject, reply-to, preview text, and content. The copy is named after the source with " (copy)" appended, truncated to 70 characters.

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

Retrieve a Resend automation by ID, including its active workflow steps and connections.

Retrieve a Resend automation run by automation and run IDs, including its status and step executions in graph order.

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.

Retrieve a contact import by ID to check its status, timestamps, and processed row counts.

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 the latest claim for a placeholder domain created by a claim. Returns the claim status, ownership-verification TXT record, and blocking or failure reasons. Supply the placeholder domain ID, not the claim ID.

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

Retrieve account-level email metrics over a date range, with optional filters and dimension breakdowns. Use to analyze delivery, engagement, and rates; without dimensions the response contains totals only.

Retrieve a Resend event definition by UUID or event name. Use to inspect an event's payload schema and creation/update timestamps.

Retrieve a single Resend API log by its ID. Use to inspect a request's endpoint, method, status, and request/response bodies.

Retrieve a single received email by ID, including its content, headers, recipients, and attachment metadata. Use for an inbound email, not a sent email.

Retrieve a single attachment from a received email, including its metadata and signed download URL. Use for an inbound email's attachment.

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

Retrieve a Resend suppression by ID or email address. Use to inspect a suppressed address, its origin, source event, and creation time.

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 the account's current usage and plan limits for emails, contacts, segments, broadcasts, AI credits, automation runs, domains, and API requests. Use to check quota consumption and reset times.

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.

Retrieve a single webhook event by webhook ID and event ID. Use to inspect its delivery status, next scheduled attempt, and event payload.

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 segments using the legacy audience action and response shape.

Retrieve a page of runs for a Resend automation. Use to review run IDs, statuses, and timestamps, optionally filtering by comma-separated statuses. Use limit and cursor parameters to paginate through results.

Retrieve a page of Resend automations. Use to find automation IDs and review names, statuses, and timestamps, optionally filtering by enabled or disabled status. Use limit and cursor parameters to paginate through results.

Retrieve one page of a broadcast's clicked URLs and total and unique click counts. Use to inspect link engagement for a broadcast. Supports cursor pagination; each returned row ID is an opaque pagination cursor, not a Resend entity ID.

Retrieve a page of broadcast recipients filtered by a required event type. Use to inspect who received, opened, clicked, bounced, or otherwise interacted with a broadcast. Supports email substring filtering and cursor pagination.

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

Retrieve a page of Resend contact imports, optionally filtered by status. Use to monitor import jobs and their row counts. Follow has_more with after or before cursors to retrieve additional pages.

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

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 contacts belonging to the segment identified by the legacy audienceId parameter.

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.

Retrieve a page of Resend event definitions and their payload schemas. Use when discovering events available for automations, with optional cursor pagination. This lists event definitions, not emitted event occurrences.

Retrieve a page of Resend API request logs with optional cursor pagination. Use to inspect called endpoints, HTTP methods, response status codes, and user agents when investigating API activity.

Retrieve a paginated list of attachments for a received email, including metadata and signed download URLs. Use for an inbound email's attachments.

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.

Retrieve a page of suppressed email addresses from Resend, optionally filtered by bounce, complaint, or manual origin. Use after or before cursors to paginate results.

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 page of delivery attempts for an event on a Resend webhook, including HTTP status codes, response bodies, and send timestamps. Use when diagnosing webhook delivery failures. Pass the last attempt's cursor as after to retrieve another page when has_more is true.

Retrieve a page of events for a Resend webhook, including delivery status. Use when inspecting webhook deliveries. Pass the last event's cursor as after to retrieve another page when has_more is true.

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.

Queue one more delivery of an event to an enabled webhook. The event must be retrievable through Get Webhook Event. A disabled webhook returns a 422 validation_error. A manual replay does not schedule automatic retries; a successful response means delivery was queued, not completed.

Retrieve a segment using the legacy audience action and response shape.

Retrieve a global contact by ID. The legacy audienceId input is retained for compatibility.

Retrieve a single domain.

Retrieve a single email.

Send an existing Resend broadcast immediately or schedule it for a later ISO 8601 date. Use after creating and preparing the broadcast for delivery to its recipients.

Send an event associated with a contact ID or email, with an optional payload. Triggers matching enabled automations, which can send emails or modify contacts according to their configured steps.

Create a shareable link for a sent or received Resend email. Use its email ID and optionally set a link lifetime of up to 48 hours; omitted expiry defaults to 48 hours.

Stop an automation by its ID and return its status after stopping.

Update a Resend automation's name, status, or workflow graph. Use for an existing automation; supply at least one update. To replace the workflow graph, provide both steps and connections together.

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 topic subscriptions for a Resend contact by ID or email address. Use to opt a contact in to or out of specific topics.

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.

Update a Resend event definition's payload schema by UUID or event name. Supply a flat key/type map to replace the schema, or null to clear it. This updates the event definition; it does not emit an event.

Update an existing segment in Resend. Use when you need to rename a segment identified by its Segment ID.

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.

Trigger asynchronous DNS verification and ownership transfer for a domain claim. Add the claim's TXT record to DNS first. Supply the placeholder domain ID, not the claim ID. The claim stays pending while verification runs; poll RESEND_GET_DOMAIN_CLAIM for status. Once completed, add the transferred domain's new DKIM records to DNS and verify them with RESEND_VERIFY_DOMAIN.