AsyncAPI channel · Resend
· Resend Webhooks
/
A single subscriber endpoint receives every Resend webhook event for which it has been subscribed in the dashboard. The event kind is discriminated by the `type` field in the JSON envelope.
Channel address
/
Operations
publish
receiveResendWebhook
Receive a Resend webhook event
Messages
EmailSent
The API request to send the email was successful.
Content-Type:
application/jsonEmailDelivered
The receiving mail server accepted the message for delivery.
Content-Type:
application/jsonEmailDeliveryDelayed
The email could not be delivered due to a temporary issue. Resend will keep retrying.
Content-Type:
application/jsonEmailComplained
The email was delivered but the recipient marked it as spam.
Content-Type:
application/jsonEmailBounced
The receiving mail server permanently rejected the message.
Content-Type:
application/jsonEmailOpened
The recipient opened the email.
Content-Type:
application/jsonEmailClicked
The recipient clicked a tracked link in the email.
Content-Type:
application/jsonContactCreated
A contact was created in an audience.
Content-Type:
application/jsonContactDeleted
A contact was deleted from an audience.
Content-Type:
application/jsonContactUpdated
A contact was updated.
Content-Type:
application/jsonDomainCreated
A sending domain was created.
Content-Type:
application/jsonDomainDeleted
A sending domain was deleted.
Content-Type:
application/jsonDomainUpdated
A sending domain was updated. This is also emitted as DNS records are verified and the domain status transitions.
Content-Type:
application/jsonAbout AsyncAPI
The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.
Browse every event-driven channel on the APIs.io network or compare with the broader Agent Skill and MCP server surfaces of the same providers.