Resend

Developer email API: send transactional messages, manage domains and audiences

Resend API referenceAPI checked August 18, 2026

Signs in with: API token
Runs on: Cloud or On-Prem Worker
Operations: 91
Ready-made triggers: 0

Connect Resend

In Neblex open Connect › Connections and click New Connection.
Search for Resend and give the connection a clear name.
Fill in the fields. Secret values are encrypted and never shown again.
Click Test, then Create Connection.

Field	What to enter
Access tokenRequiredSecret

Use it in a flow

Open a flow, open the node library and search for Resend.
Drag it onto the canvas and choose an Operation and your connection.
Map the operation's fields from earlier steps, or click Map with Matt.
Use Test this step to see what it returns, then save.

To start a flow from Resend without a ready-made trigger: a Poll for changes trigger can check one of its list operations on a schedule and pass on only what is new; if Resend can send webhooks, a Webhook trigger receives them at its own URL.

Operations

91 operations in 16 groups. Each one is a step you can add to a flow.

API Key3

Create an API key`createApiKey`	POST	Create an API key.
Delete an API key`deleteApiKey`	DELETE	Remove an API key.
List API keys`listApiKeys`	GET	Page through API keys.

Audience4

Create an audience`createAudience`	POST	Create a contact audience.
Delete an audience`deleteAudience`	DELETE	Remove an audience.
Get an audience`getAudience`	GET	Retrieve an audience.
List audiences`listAudiences`	GET	List audiences.

Automation8

Create an automation`createAutomation`	POST	Create a contact automation.
Delete an automation`deleteAutomation`	DELETE	Remove an automation.
Get an automation`getAutomation`	GET	Retrieve an automation.
Get an automation run`getAutomationRun`	GET	Retrieve one automation run.
List automation runs`listAutomationRuns`	GET	Page through an automation's runs.
List automations`listAutomations`	GET	Page through automations.
Stop an automation`stopAutomation`	POST	Stop a running automation.
Update an automation`updateAutomation`	PATCH	Change an automation.

Broadcast6

Create a broadcast`createBroadcast`	POST	Create a broadcast to a segment.
Delete a broadcast`deleteBroadcast`	DELETE	Remove a broadcast.
Get a broadcast`getBroadcast`	GET	Retrieve a broadcast.
List broadcasts`listBroadcasts`	GET	Page through broadcasts.
Send a broadcast`sendBroadcast`	POST	Send or schedule a broadcast.
Update a broadcast`updateBroadcast`	PATCH	Change a broadcast.

Contact13

Add contact to segment`addContactToSegment`	POST	Add a contact to a segment.
Create a contact`createContact`	POST	Create a contact.
Delete a contact`deleteContact`	DELETE	Remove a contact.
Get a contact`getContact`	GET	Retrieve a contact.
Get a contact import`getContactImport`	GET	Retrieve a contact import.
Import contacts`importContacts`	POST	Import contacts from a CSV file.
List contact imports`listContactImports`	GET	Page through contact imports.
List contact segments`listContactSegments`	GET	List a contact's segments.
List contact topics`listContactTopics`	GET	List a contact's topic subscriptions.
List contacts`listContacts`	GET	Page through contacts, optionally by segment.
Remove contact from segment`removeContactFromSegment`	DELETE	Remove a contact from a segment.
Update a contact`updateContact`	PATCH	Change a contact.
Update contact topics`updateContactTopics`	PATCH	Set a contact's topic subscriptions.

Contact Property5

Create a contact property`createContactProperty`	POST	Define a custom contact property.
Delete a contact property`deleteContactProperty`	DELETE	Remove a contact property.
Get a contact property`getContactProperty`	GET	Retrieve a contact property.
List contact properties`listContactProperties`	GET	Page through contact properties.
Update a contact property`updateContactProperty`	PATCH	Change a contact property's fallback.

Domain9

Claim a domain`claimDomain`	POST	Claim a domain by name.
Create a domain`createDomain`	POST	Add a sending domain.
Delete a domain`deleteDomain`	DELETE	Remove a domain.
Get a domain`getDomain`	GET	Retrieve a domain.
Get a domain claim`getDomainClaim`	GET	Retrieve a domain claim.
List domains`listDomains`	GET	Page through domains.
Update a domain`updateDomain`	PATCH	Change a domain's tracking/TLS settings.
Verify a domain`verifyDomain`	POST	Trigger domain DNS verification.
Verify a domain claim`verifyDomainClaim`	POST	Verify a domain claim.

Email8

Cancel an email`cancelEmail`	POST	Cancel a scheduled email.
Get an email`getEmail`	GET	Retrieve a sent email.
Get email attachment`getEmailAttachment`	GET	Retrieve a sent email's attachment.
List email attachments`listEmailAttachments`	GET	List a sent email's attachments.
List emails`listEmails`	GET	Page through sent emails.
Send an email`sendEmail`	POST	Send a single transactional email.
Send batch emails`sendBatchEmails`	POST	Send up to 100 emails in one call (root JSON array of email objects).
Update an email`updateEmail`	PATCH	Reschedule a scheduled email.

Event6

Create an event`createEvent`	POST	Define a custom event schema.
Delete an event`deleteEvent`	DELETE	Remove an event definition.
Get an event`getEvent`	GET	Retrieve an event definition.
List events`listEvents`	GET	Page through event definitions.
Send an event`sendEvent`	POST	Record a custom event for a contact.
Update an event`updateEvent`	PATCH	Change an event schema.

Inbound Email4

Get a received email`getReceivedEmail`	GET	Retrieve an inbound email.
Get received attachment`getReceivedEmailAttachment`	GET	Retrieve an inbound email's attachment.
List received attachments`listReceivedEmailAttachments`	GET	List an inbound email's attachments.
List received emails`listReceivedEmails`	GET	Page through inbound (received) emails.

Log2

Get a log`getLog`	GET	Retrieve one API request log.
List logs`listLogs`	GET	Page through API request logs.

OAuth Grant2

Delete an OAuth grant`deleteOauthGrant`	DELETE	Revoke an OAuth grant.
List OAuth grants`listOauthGrants`	GET	Page through OAuth grants.

Segment4

Create a segment`createSegment`	POST	Create a contact segment.
Delete a segment`deleteSegment`	DELETE	Remove a segment.
Get a segment`getSegment`	GET	Retrieve a segment.
List segments`listSegments`	GET	Page through segments.

Template7

Create a template`createTemplate`	POST	Create an email template.
Delete a template`deleteTemplate`	DELETE	Remove a template.
Duplicate a template`duplicateTemplate`	POST	Duplicate a template.
Get a template`getTemplate`	GET	Retrieve a template.
List templates`listTemplates`	GET	Page through templates.
Publish a template`publishTemplate`	POST	Publish a template.
Update a template`updateTemplate`	PATCH	Change a template.

Topic5

Create a topic`createTopic`	POST	Create a subscription topic.
Delete a topic`deleteTopic`	DELETE	Remove a topic.
Get a topic`getTopic`	GET	Retrieve a topic.
List topics`listTopics`	GET	Page through topics.
Update a topic`updateTopic`	PATCH	Change a topic.

Webhook5

Create a webhook`createWebhook`	POST	Create a webhook endpoint.
Delete a webhook`deleteWebhook`	DELETE	Remove a webhook.
Get a webhook`getWebhook`	GET	Retrieve a webhook.
List webhooks`listWebhooks`	GET	Page through webhooks.
Update a webhook`updateWebhook`	PATCH	Change a webhook.