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/nedap-herald-announcementcount-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 form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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

OpenAPI Specification

openapi: 3.2.0
info:
  title: Nedap Herald.Announcement Count API
  version: 0.0.0
  description: 'Operations tagged herald.AnnouncementCount across 2 of this provider''s published API definitions: nedap-ons-deprecated-openapi-original.json, nedap-ons-openapi-original.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api-development.ons.io
tags:
- name: herald.AnnouncementCount
paths:
  /t/herald/announcement_count:
    get:
      tags:
      - herald.AnnouncementCount
      operationId: herald.AnnouncementCountAPI.byUserId
      parameters:
      - name: user_id
        in: query
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: No response was specified
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/herald.AnnouncementCount'
      x-replaced-by: /v0/announcements/announcement_count
      deprecated: true
      x-deprecated-since: 19-11-2025
      summary: Herald announcement count API by user id
      x-summary-source: derived
    servers:
    - url: https://api-development.ons.io
  /v0/announcements/announcement_count:
    get:
      tags:
      - herald.AnnouncementCount
      operationId: herald.AnnouncementCountAPI.byUserId
      parameters:
      - name: user_id
        in: query
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: No response was specified
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/herald.AnnouncementCount'
      x-replacement-for:
      - /t/herald/announcement_count
      summary: Herald announcement count API by user id
      x-summary-source: derived
    servers:
    - url: https://api-development.ons.io
components:
  schemas:
    herald.AnnouncementCount:
      required:
      - count
      type: object
      properties:
        count:
          type: integer
          description: The number of unread announcements
          format: int32
      description: AnnouncementCount model (no description)
      example:
        count: 10
x-refined-from:
- nedap-ons-deprecated-openapi-original.json
- nedap-ons-openapi-original.json