openapi: 3.2.0
info:
  title: Impossible Metals Discovery Authors API
  version: wp/v2
  description: 'Public, unauthenticated discovery surface for the impossiblemetals.com WordPress REST API: the API root, which enumerates all 269 routes across 23 namespaces along with site identity and the supported authentication mechanism, plus the published author and post-status vocabularies.'
  contact:
    name: Impossible Metals
    url: https://impossiblemetals.com/contact/
  x-derived-from: https://impossiblemetals.com/wp-json/ route index + per-route HTTP OPTIONS schema documents
  x-derived-on: '2026-08-23'
  x-api-evangelist-note: Third-party profile. Impossible Metals publishes no developer program. This document describes the anonymously readable WordPress REST content API served from impossiblemetals.com. Every path, parameter and schema was read from the server's own published route index and OPTIONS documents on 2026-08-23 — nothing is invented.
servers:
- url: https://impossiblemetals.com/wp-json
  description: Impossible Metals WordPress REST API
tags:
- name: Authors
  description: Published authors of Impossible Metals content (8 at capture).
paths:
  /wp/v2/users:
    get:
      operationId: listAuthors
      summary: List authors
      description: Retrieve the users who have authored published content. 8 authors were live at capture.
      tags:
      - Authors
      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: 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: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: exclude
        in: query
        description: Ensure result set excludes specific IDs.
        schema:
          type: array
          default: []
          items:
            type: integer
      - name: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          default: []
          items:
            type: integer
      - 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 user attribute.
        schema:
          type: string
          enum:
          - id
          - include
          - name
          - registered_date
          - slug
          - include_slugs
          - email
          - url
          default: name
      - name: slug
        in: query
        description: Limit result set to users with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      - name: roles
        in: query
        description: Limit result set to users matching at least one specific role provided. Accepts csv list or single role.
        schema:
          type: array
          items:
            type: string
      - name: capabilities
        in: query
        description: Limit result set to users matching at least one specific capability provided. Accepts csv list or single capability.
        schema:
          type: array
          items:
            type: string
      - name: who
        in: query
        description: Limit result set to users who are considered authors.
        schema:
          type: string
          enum:
          - authors
      - name: has_published_posts
        in: query
        description: Limit result set to users who have published posts.
        schema:
          type: boolean
          items:
            type: string
            enum:
              post: post
              page: page
              attachment: attachment
              nav_menu_item: nav_menu_item
              wp_block: wp_block
              wp_template: wp_template
              wp_template_part: wp_template_part
              wp_global_styles: wp_global_styles
              wp_navigation: wp_navigation
              wp_font_family: wp_font_family
              wp_font_face: wp_font_face
              tribe_venue: tribe_venue
              tribe_organizer: tribe_organizer
              tribe_events: tribe_events
              avada_portfolio: avada_portfolio
              avada_faq: avada_faq
              tec_calendar_embed: tec_calendar_embed
      - name: search_columns
        in: query
        description: Array of column names to be searched.
        schema:
          type: array
          default: []
          items:
            enum:
            - email
            - name
            - id
            - username
            - slug
            type: string
      responses:
        '200':
          description: List authors — success.
          headers:
            X-WP-Total:
              description: Total number of items in the unpaginated collection.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages available at the requested per_page size.
              schema:
                type: integer
            Link:
              description: RFC 8288 pagination links (rel="next" / rel="prev").
              schema:
                type: string
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/User'
        '400':
          description: Invalid parameter.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RestError'
              examples:
                invalidParam:
                  value:
                    code: rest_invalid_param
                    message: 'Invalid parameter(s): per_page'
                    data:
                      status: 400
                      params:
                        per_page: per_page must be between 1 (inclusive) and 100 (inclusive)
        '404':
          description: WordPress REST error envelope.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RestError'
              examples:
                invalidId:
                  value:
                    code: rest_post_invalid_id
                    message: Invalid post ID.
                    data:
                      status: 404
components:
  schemas:
    RestError:
      type: object
      description: The WordPress REST API error envelope. Not RFC 9457 problem+json — it is served as application/json with a WordPress-specific code/message/data shape.
      required:
      - code
      - message
      - data
      properties:
        code:
          type: string
          description: Machine-readable WordPress error code, e.g. rest_post_invalid_id.
        message:
          type: string
          description: Human-readable message.
        data:
          type: object
          properties:
            status:
              type: integer
              description: HTTP status code.
            params:
              type: object
              description: Per-parameter validation messages, present on rest_invalid_param.
    User:
      type: object
      properties:
        id:
          type: integer
          description: Unique identifier for the user.
          readOnly: true
        username:
          type: string
          description: Login name for the user.
        name:
          type: string
          description: Display name for the user.
        first_name:
          type: string
          description: First name for the user.
        last_name:
          type: string
          description: Last name for the user.
        email:
          type: string
          description: The email address for the user.
          format: email
        url:
          type: string
          description: URL of the user.
          format: uri
        description:
          type: string
          description: Description of the user.
        link:
          type: string
          description: Author URL of the user.
          format: uri
          readOnly: true
        locale:
          type: string
          description: Locale for the user.
          enum:
          - ''
          - en_US
        nickname:
          type: string
          description: The nickname for the user.
        slug:
          type: string
          description: An alphanumeric identifier for the user.
        registered_date:
          type: string
          description: Registration date for the user.
          format: date-time
          readOnly: true
        roles:
          type: array
          description: Roles assigned to the user.
          items:
            type: string
        password:
          type: string
          description: Password for the user (never included).
        capabilities:
          type: object
          description: All capabilities assigned to the user.
          readOnly: true
        extra_capabilities:
          type: object
          description: Any extra capabilities assigned to the user.
          readOnly: true
        avatar_urls:
          type: object
          description: Avatar URLs for the user.
          readOnly: true
          properties:
            '24':
              type: string
              description: Avatar URL with image size of 24 pixels.
              format: uri
            '48':
              type: string
              description: Avatar URL with image size of 48 pixels.
              format: uri
            '96':
              type: string
              description: Avatar URL with image size of 96 pixels.
              format: uri
        meta:
          type: object
          description: Meta fields.
          properties:
            lw_harbor_dismissed_notices:
              type: object
            persisted_preferences:
              type: object
              properties:
                _modified:
                  type: string
                  description: The date and time the preferences were updated.
                  format: date-time