SIGNL4 Events API

The Events API from SIGNL4 — 1 operation(s) for events.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/signl4-events-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

signl4-events-api-openapi.yml Raw ↑
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.