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ServiceNow Event Management Topic Open API

The ServiceNow Event Management Topic Open API provides REST endpoints for managing event topics and subscriptions within IT Operations Management. It enables external monitoring tools to publish events and subscribe to event notifications using a topic-based messaging pattern.

ServiceNow Event Management Topic Open API is one of 63 APIs that ServiceNow publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Alerts, Event Management, ITOM, and Monitoring. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

This event API exposes 3 operations across 3 channels, and defines 9 schemas. It is described by AsyncAPI 2.6.0, at version Yokohama.

The API connects through a single server, {webhookUrl} (https).

3 operations 3 channels 9 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
Yokohama
Base URL
https://{instance}.service-now.com/api/em/topic
Resource Areas
1

Channels & Operations 3

Across 3 channels, the API surfaces 3 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 3
PUB
/webhook/incident
Receive an incident event notification
receiveIncidentEvent body
PUB
/webhook/change
Receive a change request event notification
receiveChangeEvent body
PUB
/webhook/event-management
Receive an event management alert
receiveEventManagementAlert body

Messages & Schemas 9

The contract defines 9 schemas that model the data carried by its messages. The most detailed are AlertEvent (4 properties), ChangeEvent (4 properties), IncidentEvent (4 properties). Each schema is shown below with its type and property counts.

IncidentCreated
message
Notification sent when a new incident is created.
IncidentUpdated
message
Notification sent when an incident is updated.
IncidentResolved
message
Notification sent when an incident is resolved or closed.
ChangeCreated
message
Notification sent when a change request is created.
ChangeUpdated
message
Notification sent when a change request is approved, implemented, or closed.
EventManagementAlert
message
Alert notification from ServiceNow Event Management.
IncidentEvent
object
The payload for an incident event notification containing the incident record details and event metadata.
4 properties
ChangeEvent
object
The payload for a change request event notification.
4 properties
AlertEvent
object
The payload for an event management alert notification from ServiceNow ITOM.
4 properties

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

servicenow-events-asyncapi.yml Raw ↑

Other APIs ServiceNow publishes across the network.

ServiceNow Batch API
ServiceNow Knowledge Management API
ServiceNow Identification and Reconciliation API
ServiceNow Performance Analytics API
ServiceNow Scripted REST APIs
ServiceNow GraphQL API
ServiceNow Application Service API
ServiceNow Case API
ServiceNow Account API
ServiceNow Consumer API
ServiceNow CSM Attachment API
ServiceNow Email API
Where this information came from

This is an independent, third-party profile of ServiceNow Event Management Topic Open API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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