Interpublic Group API Rules

x-aid: interpublic
x-name: Interpublic Group Rules
description: >-
  Validation, governance, and operational rules applied to the Interpublic
  Group APIs.json index. Interpublic Group publishes no product REST API and
  no OpenAPI at the holding-company level; the OpenAPI documents in openapi/
  are a mechanical conversion of the WordPress route-discovery document the
  provider serves at https://interpublic.com/wp-json/ (fetched 2026-08-12,
  HTTP 200) and are marked method: derived.
x-type: company
x-profile:
  - apis.json
x-governance:
  source: api-evangelist
  steward: Kin Lane
  visibility: public
rules:
  - id: apisjson-required-fields
    description: APIs.json must include aid, name, description, url, created, modified, and maintainers.
    severity: error
  - id: apisjson-tags-upper-case
    description: All tags must use upper-case first letters.
    severity: warn
  - id: openapi-non-empty
    description: OpenAPI specs must reference real, validated endpoints. Stub or empty specs are not permitted.
    severity: error
  - id: artifact-location
    description: All OpenAPI specs live under openapi/{repo}-openapi.yml.
    severity: error
  - id: holding-company-watch
    description: Track Omnicom-IPG merger integration; revisit if a unified developer surface is published under omc.com.
    severity: info