openapi: 3.1.0
info:
  title: Envisics Taxonomy API
  version: wp/v2
  description: 'Public, unauthenticated read access to the classification vocabularies behind envisics.com: post
    categories (news, press, tech-shorts, white-papers, did-you-know — 7 terms at capture) and post tags (24 terms
    at capture).'
  contact:
    name: Envisics
    url: https://envisics.com/contact/
  x-derived-from: https://envisics.com/wp-json/ route index + per-route HTTP OPTIONS schema documents
  x-derived-on: '2026-08-12'
  x-api-evangelist-note: Third-party profile. Envisics publishes no developer program; this documents the anonymously
    readable WordPress REST content API behind envisics.com. Every path, parameter and schema here was read from
    the server's own OPTIONS documents on 2026-08-12 — nothing is invented. Envisics Ltd. entered administration
    on 2026-04-22; this surface is a live corporate-website CMS API and may disappear with the site.
servers:
- url: https://envisics.com/wp-json
  description: Envisics WordPress REST API
tags:
- name: Categories
  description: Newsroom categories.
- name: Tags
  description: Newsroom tags.
paths:
  /wp/v2/categories:
    get:
      operationId: listCategories
      summary: List categories
      description: Retrieve the category terms used to classify Envisics posts.
      tags:
      - Categories
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: parent
        in: query
        description: Limit result set to terms assigned to a specific parent.
        schema:
          type: integer
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
          default: null
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: A paginated collection of categories.
          headers:
            X-WP-Total: &id002
              description: Total number of items in the unpaginated collection.
              schema:
                type: integer
            X-WP-TotalPages: &id003
              description: Total number of pages available at the current per_page.
              schema:
                type: integer
            Link: &id004
              description: RFC 8288 pagination links (rel=next / rel=prev).
              schema:
                type: string
          content:
            application/json:
              schema:
                type: array
                items: &id001
                  $ref: '#/components/schemas/Category'
        '400':
          description: Bad request — an invalid parameter was supplied.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/categories/{id}:
    get:
      operationId: getCategory
      summary: Get a category
      description: Retrieve a single category term by its numeric identifier.
      tags:
      - Categories
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: id
        in: path
        description: Unique identifier for the term.
        schema:
          type: integer
        required: true
      responses:
        '200':
          description: The requested category.
          content:
            application/json:
              schema: *id001
        '404':
          description: Not found — no resource matches the supplied identifier.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/tags:
    get:
      operationId: listTags
      summary: List tags
      description: Retrieve the tag terms used to classify Envisics posts.
      tags:
      - Tags
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: hide_empty
        in: query
        description: Whether to hide terms not assigned to any posts.
        schema:
          type: boolean
          default: false
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: offset
        in: query
        description: Offset the result set by a specific number of items.
        schema:
          type: integer
      - name: order
        in: query
        description: Order sort attribute ascending or descending.
        schema:
          type: string
          enum:
          - asc
          - desc
          default: asc
      - name: orderby
        in: query
        description: Sort collection by term attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - slug
          - include_slugs
          - term_group
          - description
          - count
          default: name
      - name: page
        in: query
        description: Current page of the collection.
        schema:
          type: integer
          default: 1
          minimum: 1
      - name: per_page
        in: query
        description: Maximum number of items to be returned in result set.
        schema:
          type: integer
          default: 10
          minimum: 1
          maximum: 100
      - name: post
        in: query
        description: Limit result set to terms assigned to a specific post.
        schema:
          type: integer
          default: null
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: slug
        in: query
        description: Limit result set to terms with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: A paginated collection of tags.
          headers:
            X-WP-Total: *id002
            X-WP-TotalPages: *id003
            Link: *id004
          content:
            application/json:
              schema:
                type: array
                items: &id005
                  $ref: '#/components/schemas/Tag'
        '400':
          description: Bad request — an invalid parameter was supplied.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /wp/v2/tags/{id}:
    get:
      operationId: getTag
      summary: Get a tag
      description: Retrieve a single tag term by its numeric identifier.
      tags:
      - Tags
      parameters:
      - name: context
        in: query
        description: Scope under which the request is made; determines fields present in response.
        schema:
          type: string
          enum:
          - view
          - embed
          - edit
          default: view
      - name: id
        in: path
        description: Unique identifier for the term.
        schema:
          type: integer
        required: true
      responses:
        '200':
          description: The requested tag.
          content:
            application/json:
              schema: *id005
        '404':
          description: Not found — no resource matches the supplied identifier.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    Error:
      type: object
      description: WordPress REST API error envelope.
      properties:
        code:
          type: string
          description: Machine-readable error code, e.g. rest_post_invalid_id.
        message:
          type: string
          description: Human-readable error message.
        data:
          type: object
          description: Error data.
          properties:
            status:
              type: integer
              description: HTTP status code.
    Category:
      title: category
      type: object
      properties:
        id:
          description: Unique identifier for the term.
          type: integer
        count:
          description: Number of published posts for the term.
          type: integer
        description:
          description: HTML description of the term.
          type: string
        link:
          description: URL of the term.
          type: string
          format: uri
        name:
          description: HTML title for the term.
          type: string
        slug:
          description: An alphanumeric identifier for the term unique to its type.
          type: string
        taxonomy:
          description: Type attribution for the term.
          type: string
          enum:
          - category
        parent:
          description: The parent term ID.
          type: integer
        meta:
          description: Meta fields.
          type: object
    Tag:
      title: tag
      type: object
      properties:
        id:
          description: Unique identifier for the term.
          type: integer
        count:
          description: Number of published posts for the term.
          type: integer
        description:
          description: HTML description of the term.
          type: string
        link:
          description: URL of the term.
          type: string
          format: uri
        name:
          description: HTML title for the term.
          type: string
        slug:
          description: An alphanumeric identifier for the term unique to its type.
          type: string
        taxonomy:
          description: Type attribution for the term.
          type: string
          enum:
          - post_tag
        meta:
          description: Meta fields.
          type: object