openapi: 3.1.0
info:
  title: SIGNL4 Webhook and REST Events API
  description: SIGNL4 mobile alerting platform endpoints. The inbound webhook accepts JSON, form-encoded, or multipart payloads with Title and Message fields plus optional X-S4 control parameters and triggers SIGNL4 mobile alerts. The REST API v2 lets clients raise events with an X-S4-Api-Key header. Authentication uses a unique team or webhook secret embedded in the URL path or supplied via the API key header.
  version: v2
  contact:
    name: SIGNL4 Support
    url: https://support.signl4.com
servers:
- url: https://connect.signl4.com
  description: SIGNL4 connect endpoint
tags:
- name: Events
paths:
  /api/v2/events/{webhookIdOrTeamId}:
    post:
      summary: Create Event
      description: Raise an event in SIGNL4 that will be turned into a mobile alert. Authentication uses the X-S4-Api-Key header carrying the team or webhook secret.
      operationId: createEvent
      tags:
      - Events
      security:
      - S4ApiKey: []
      parameters:
      - name: webhookIdOrTeamId
        in: path
        required: true
        description: Webhook ID or team ID receiving the event.
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                Title:
                  type: string
                Message:
                  type: string
                ExternalID:
                  type: string
                Status:
                  type: string
                  enum:
                  - new
                  - acknowledged
                  - resolved
      responses:
        '200':
          description: Event accepted
        '401':
          description: Unauthorized
components:
  securitySchemes:
    S4ApiKey:
      type: apiKey
      in: header
      name: X-S4-Api-Key
      description: Team or webhook secret used to authorize REST API requests.