openapi: 3.1.0
info:
  title: Hydrostor Projects API
  version: wp/v2
  description: Public, unauthenticated read access to Hydrostor's Advanced Compressed Air Energy Storage (A-CAES)
    project portfolio — the site-specific `project` custom post type behind hydrostor.ca/projects/, carrying the
    Goderich A-CAES Facility, Willow Rock, Silver City, Quinte, Wellington and Copper Valley Energy Storage Centers.
    This is the one genuinely Hydrostor-specific resource on the surface; the rest is stock WordPress. Anonymous
    access is read-only — the write methods on these same routes require a WordPress application password and answer
    401 `rest_cannot_create` without one.
  contact:
    name: Hydrostor
    url: https://hydrostor.ca/contact/
  x-derived-from: https://hydrostor.ca/wp-json/ route index + per-route HTTP OPTIONS schema documents
  x-derived-on: '2026-08-22'
  x-api-evangelist-note: Third-party profile by API Evangelist. Hydrostor publishes no developer program; this document
    describes the anonymously readable WordPress REST content API served from hydrostor.ca, which the site exposes
    as a self-describing route index. Every path, parameter and schema here was read from the server's own route
    index and HTTP OPTIONS documents on 2026-08-22 — nothing is invented.
servers:
- url: https://hydrostor.ca/wp-json
  description: Hydrostor WordPress REST API
tags:
- name: Projects
  description: Hydrostor's A-CAES project portfolio.
paths:
  /wp/v2/project:
    get:
      operationId: listProjects
      summary: List A-CAES projects
      description: Retrieve the published collection of Hydrostor Advanced Compressed Air Energy Storage projects.
        Verified live at 6 published projects on 2026-08-22.
      tags:
      - Projects
      parameters:
      - name: after
        in: query
        description: Limit response to posts published after a given ISO8601 compliant date.
        schema:
          type: string
          format: date-time
      - name: author
        in: query
        description: Limit result set to posts assigned to specific authors.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: author_exclude
        in: query
        description: Ensure result set excludes posts assigned to specific authors.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: before
        in: query
        description: Limit response to posts published before a given ISO8601 compliant date.
        schema:
          type: string
          format: date-time
      - 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: include
        in: query
        description: Limit result set to specific IDs.
        schema:
          type: array
          items:
            type: integer
          default: []
      - name: modified_after
        in: query
        description: Limit response to posts modified after a given ISO8601 compliant date.
        schema:
          type: string
          format: date-time
      - name: modified_before
        in: query
        description: Limit response to posts modified before a given ISO8601 compliant date.
        schema:
          type: string
          format: date-time
      - 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: desc
      - name: orderby
        in: query
        description: Sort collection by post attribute.
        schema:
          type: string
          enum:
          - author
          - date
          - id
          - include
          - modified
          - parent
          - relevance
          - slug
          - include_slugs
          - title
          default: date
      - 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: project_category
        in: query
        description: Limit result set to items with specific terms assigned in the project_category taxonomy.
        schema:
          type:
          - object
          - array
      - name: project_category_exclude
        in: query
        description: Limit result set to items except those with specific terms assigned in the project_category
          taxonomy.
        schema:
          type:
          - object
          - array
      - name: project_tag
        in: query
        description: Limit result set to items with specific terms assigned in the project_tag taxonomy.
        schema:
          type:
          - object
          - array
      - name: project_tag_exclude
        in: query
        description: Limit result set to items except those with specific terms assigned in the project_tag taxonomy.
        schema:
          type:
          - object
          - array
      - name: search
        in: query
        description: Limit results to those matching a string.
        schema:
          type: string
      - name: search_columns
        in: query
        description: Array of column names to be searched.
        schema:
          type: array
          items:
            type: string
            enum:
            - post_title
            - post_content
            - post_excerpt
          default: []
      - name: search_semantics
        in: query
        description: How to interpret the search input.
        schema:
          type: string
          enum:
          - exact
      - name: slug
        in: query
        description: Limit result set to posts with one or more specific slugs.
        schema:
          type: array
          items:
            type: string
      - name: status
        in: query
        description: Limit result set to posts assigned one or more statuses.
        schema:
          type: array
          items:
            type: string
            enum:
            - publish
            - future
            - draft
            - pending
            - private
            - trash
            - auto-draft
            - inherit
            - request-pending
            - request-confirmed
            - request-failed
            - request-completed
            - acf-disabled
            - any
          default: publish
      - name: tax_relation
        in: query
        description: Limit result set based on relationship between multiple taxonomies.
        schema:
          type: string
          enum:
          - AND
          - OR
      responses:
        '200':
          description: A page of project records.
          content:
            application/json:
              schema:
                type: array
                items: &id001
                  $ref: '#/components/schemas/Project'
          headers:
            X-WP-Total:
              description: Total number of items in the collection.
              schema:
                type: integer
            X-WP-TotalPages:
              description: Total number of pages available at the requested page size.
              schema:
                type: integer
            Link:
              description: RFC 8288 pagination links (`rel="next"` / `rel="prev"`).
              schema:
                type: string
        '400':
          description: Invalid request parameter (`rest_invalid_param`).
          content:
            application/json:
              schema: &id002
                $ref: '#/components/schemas/Error'
  /wp/v2/project/{id}:
    get:
      operationId: getProject
      summary: Get one A-CAES project
      description: Retrieve a single project record by its numeric identifier.
      tags:
      - Projects
      parameters:
      - name: id
        in: path
        required: true
        description: Unique identifier for the project.
        schema:
          type: integer
      - 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: password
        in: query
        description: The password for the project if it is password protected.
        schema:
          type: string
      responses:
        '200':
          description: The project record.
          content:
            application/json:
              schema: *id001
        '400':
          description: Invalid request parameter (`rest_invalid_param`).
          content:
            application/json:
              schema: *id002
        '404':
          description: No project exists with that identifier (`rest_post_invalid_id`).
          content:
            application/json:
              schema: *id002
components:
  schemas:
    Project:
      type: object
      title: Project
      properties:
        date:
          type:
          - string
          - 'null'
          description: The date the post was published, in the site's timezone.
          format: date-time
        date_gmt:
          type:
          - string
          - 'null'
          description: The date the post was published, as GMT.
          format: date-time
        guid:
          type: object
          description: The globally unique identifier for the post.
          properties:
            raw:
              type: string
              description: GUID for the post, as it exists in the database.
              readOnly: true
            rendered:
              type: string
              description: GUID for the post, transformed for display.
              readOnly: true
          readOnly: true
        id:
          type: integer
          description: Unique identifier for the post.
          readOnly: true
        link:
          type: string
          description: URL to the post.
          format: uri
          readOnly: true
        modified:
          type: string
          description: The date the post was last modified, in the site's timezone.
          format: date-time
          readOnly: true
        modified_gmt:
          type: string
          description: The date the post was last modified, as GMT.
          format: date-time
          readOnly: true
        slug:
          type: string
          description: An alphanumeric identifier for the post unique to its type.
        status:
          type: string
          description: A named status for the post.
          enum:
          - publish
          - future
          - draft
          - pending
          - private
          - acf-disabled
        type:
          type: string
          description: Type of post.
          readOnly: true
        password:
          type: string
          description: A password to protect access to the content and excerpt.
        permalink_template:
          type: string
          description: Permalink template for the post.
          readOnly: true
        generated_slug:
          type: string
          description: Slug automatically generated from the post title.
          readOnly: true
        class_list:
          type: array
          description: An array of the class names for the post container element.
          items:
            type: string
          readOnly: true
        title:
          type: object
          description: The title for the post.
          properties:
            raw:
              type: string
              description: Title for the post, as it exists in the database.
            rendered:
              type: string
              description: HTML title for the post, transformed for display.
              readOnly: true
        content:
          type: object
          description: The content for the post.
          properties:
            raw:
              type: string
              description: Content for the post, as it exists in the database.
            rendered:
              type: string
              description: HTML content for the post, transformed for display.
              readOnly: true
            block_version:
              type: integer
              description: Version of the content block format used by the post.
              readOnly: true
            protected:
              type: boolean
              description: Whether the content is protected with a password.
              readOnly: true
        author:
          type: integer
          description: The ID for the author of the post.
        excerpt:
          type: object
          description: The excerpt for the post.
          properties:
            raw:
              type: string
              description: Excerpt for the post, as it exists in the database.
            rendered:
              type: string
              description: HTML excerpt for the post, transformed for display.
              readOnly: true
            protected:
              type: boolean
              description: Whether the excerpt is protected with a password.
              readOnly: true
        featured_media:
          type: integer
          description: The ID of the featured media for the post.
        comment_status:
          type: string
          description: Whether or not comments are open on the post.
          enum:
          - open
          - closed
        ping_status:
          type: string
          description: Whether or not the post can be pinged.
          enum:
          - open
          - closed
        meta:
          type: object
          description: Meta fields.
          properties:
            _acf_changed:
              type: boolean
            _et_pb_use_builder:
              type: string
            _et_pb_old_content:
              type: string
            _et_gb_content_width:
              type: string
            footnotes:
              type: string
        template:
          type: string
          description: The theme file to use to display the post.
        project_category:
          type: array
          description: The terms assigned to the post in the project_category taxonomy.
          items:
            type: integer
        project_tag:
          type: array
          description: The terms assigned to the post in the project_tag taxonomy.
          items:
            type: integer
        acf:
          type: object
          description: ACF field data
      description: A Hydrostor Advanced Compressed Air Energy Storage (A-CAES) project record.
    Error:
      type: object
      title: WordPress REST error
      description: The error envelope returned by every route on this surface. Observed live on 2026-08-22; it is
        a WordPress-native envelope, not RFC 9457 problem+json.
      properties:
        code:
          type: string
          description: Machine-readable error code, e.g. `rest_post_invalid_id`, `rest_invalid_param`, `rest_forbidden`.
        message:
          type: string
          description: Human-readable error message.
        data:
          type: object
          description: Error detail.
          properties:
            status:
              type: integer
              description: HTTP status code, repeated inside the body.
            params:
              type: object
              description: Per-parameter validation messages, present on `rest_invalid_param`.
            details:
              type: object
              description: Per-parameter structured validation detail, present on `rest_invalid_param`.
  securitySchemes:
    applicationPassword:
      type: http
      scheme: basic
      description: WordPress application passwords. Issued from https://hydrostor.ca/wp-admin/authorize-application.php
        and advertised by the API's own root document under `authentication.application-passwords`. Required only
        for write and administrative routes; every read operation described in this document answers anonymously.