openapi: 3.1.0 info: title: Engrail Therapeutics Site Content API (WordPress REST) version: wp/v2 description: The public, anonymously-readable content API exposed by engrail.com. Engrail Therapeutics is a clinical-stage precision-neuroscience company and does not publish a product API; this contract is the read-only content surface its WordPress-backed corporate site exposes at /wp-json/wp/v2. It is DERIVED mechanically from the provider's own route-discovery document - every path, method, and parameter below is copied verbatim from https://www.engrail.com/wp-json/ . Write operations exist on the live host but require authentication and are deliberately not modelled here. contact: name: Engrail Therapeutics url: https://www.engrail.com/contact-us/ x-derived-from: https://www.engrail.com/wp-json/ x-derivation-method: route-discovery x-evidence: fetched: '2026-08-01' url: https://www.engrail.com/wp-json/ http_status: 200 content_type: application/json servers: - url: https://www.engrail.com/wp-json description: Production tags: - name: Categories - name: Comments - name: Media - name: Pages - name: Posts - name: Search - name: Statuses - name: Tags - name: Taxonomies - name: Types paths: /wp/v2/posts: get: operationId: listPosts summary: List posts description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Posts parameters: - name: after in: query required: false schema: type: string format: date-time description: Limit response to posts published after a given ISO8601 compliant date. - name: author in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to posts assigned to specific authors. - name: author_exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes posts assigned to specific authors. - name: before in: query required: false schema: type: string format: date-time description: Limit response to posts published before a given ISO8601 compliant date. - name: categories in: query required: false schema: type: - object - array description: Limit result set to items with specific terms assigned in the categories taxonomy. - name: categories_exclude in: query required: false schema: type: - object - array description: Limit result set to items except those with specific terms assigned in the categories taxonomy. - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: format in: query required: false schema: type: array items: enum: - standard - aside - chat - gallery - link - image - quote - status - video - audio type: string description: Limit result set to items assigned one or more given formats. - name: ignore_sticky in: query required: false schema: type: boolean default: true description: Whether to ignore sticky posts or not. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: modified_after in: query required: false schema: type: string format: date-time description: Limit response to posts modified after a given ISO8601 compliant date. - name: modified_before in: query required: false schema: type: string format: date-time description: Limit response to posts modified before a given ISO8601 compliant date. - name: offset in: query required: false schema: type: integer description: Offset the result set by a specific number of items. - name: order in: query required: false schema: type: string enum: - asc - desc default: desc description: Order sort attribute ascending or descending. - name: orderby in: query required: false schema: type: string enum: - author - date - id - include - modified - parent - relevance - slug - include_slugs - title default: date description: Sort collection by post attribute. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: search_columns in: query required: false schema: type: array default: [] items: enum: - post_title - post_content - post_excerpt type: string description: Array of column names to be searched. - name: search_semantics in: query required: false schema: type: string enum: - exact description: How to interpret the search input. - name: slug in: query required: false schema: type: array items: type: string description: Limit result set to posts with one or more specific slugs. - name: status in: query required: false schema: type: array default: publish items: enum: - publish - future - draft - pending - private - trash - auto-draft - inherit - request-pending - request-confirmed - request-failed - request-completed - any type: string description: Limit result set to posts assigned one or more statuses. - name: sticky in: query required: false schema: type: boolean description: Limit result set to items that are sticky. - name: tags in: query required: false schema: type: - object - array description: Limit result set to items with specific terms assigned in the tags taxonomy. - name: tags_exclude in: query required: false schema: type: - object - array description: Limit result set to items except those with specific terms assigned in the tags taxonomy. - name: tax_relation in: query required: false schema: type: string enum: - AND - OR description: Limit result set based on relationship between multiple taxonomies. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/posts/{id}: get: operationId: getPost summary: Retrieve a single post by id description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Posts parameters: - name: id in: path required: true description: Unique identifier for the post. schema: type: integer - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: excerpt_length in: query required: false schema: type: integer description: Override the default excerpt length. - name: password in: query required: false schema: type: string description: The password for the post if it is password protected. responses: '200': description: Success content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' /wp/v2/pages: get: operationId: listPages summary: List pages description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Pages parameters: - name: after in: query required: false schema: type: string format: date-time description: Limit response to posts published after a given ISO8601 compliant date. - name: author in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to posts assigned to specific authors. - name: author_exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes posts assigned to specific authors. - name: before in: query required: false schema: type: string format: date-time description: Limit response to posts published before a given ISO8601 compliant date. - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: menu_order in: query required: false schema: type: integer description: Limit result set to posts with a specific menu_order value. - name: modified_after in: query required: false schema: type: string format: date-time description: Limit response to posts modified after a given ISO8601 compliant date. - name: modified_before in: query required: false schema: type: string format: date-time description: Limit response to posts modified before a given ISO8601 compliant date. - name: offset in: query required: false schema: type: integer description: Offset the result set by a specific number of items. - name: order in: query required: false schema: type: string enum: - asc - desc default: desc description: Order sort attribute ascending or descending. - name: orderby in: query required: false schema: type: string enum: - author - date - id - include - modified - parent - relevance - slug - include_slugs - title - menu_order default: date description: Sort collection by post attribute. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: parent in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to items with particular parent IDs. - name: parent_exclude in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to all items except those of a particular parent ID. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: search_columns in: query required: false schema: type: array default: [] items: enum: - post_title - post_content - post_excerpt type: string description: Array of column names to be searched. - name: search_semantics in: query required: false schema: type: string enum: - exact description: How to interpret the search input. - name: slug in: query required: false schema: type: array items: type: string description: Limit result set to posts with one or more specific slugs. - name: status in: query required: false schema: type: array default: publish items: enum: - publish - future - draft - pending - private - trash - auto-draft - inherit - request-pending - request-confirmed - request-failed - request-completed - any type: string description: Limit result set to posts assigned one or more statuses. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/pages/{id}: get: operationId: getPage summary: Retrieve a single page by id description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Pages parameters: - name: id in: path required: true description: Unique identifier for the page. schema: type: integer - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: excerpt_length in: query required: false schema: type: integer description: Override the default excerpt length. - name: password in: query required: false schema: type: string description: The password for the post if it is password protected. responses: '200': description: Success content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' /wp/v2/media: get: operationId: listMedia summary: List media description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Media parameters: - name: after in: query required: false schema: type: string format: date-time description: Limit response to posts published after a given ISO8601 compliant date. - name: author in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to posts assigned to specific authors. - name: author_exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes posts assigned to specific authors. - name: before in: query required: false schema: type: string format: date-time description: Limit response to posts published before a given ISO8601 compliant date. - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: media_type in: query required: false schema: type: array default: null items: type: string enum: - image - video - text - application - audio description: Limit result set to attachments of a particular media type or media types. - name: mime_type in: query required: false schema: type: array default: null items: type: string description: Limit result set to attachments of a particular MIME type or MIME types. - name: modified_after in: query required: false schema: type: string format: date-time description: Limit response to posts modified after a given ISO8601 compliant date. - name: modified_before in: query required: false schema: type: string format: date-time description: Limit response to posts modified before a given ISO8601 compliant date. - name: offset in: query required: false schema: type: integer description: Offset the result set by a specific number of items. - name: order in: query required: false schema: type: string enum: - asc - desc default: desc description: Order sort attribute ascending or descending. - name: orderby in: query required: false schema: type: string enum: - author - date - id - include - modified - parent - relevance - slug - include_slugs - title default: date description: Sort collection by post attribute. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: parent in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to items with particular parent IDs. - name: parent_exclude in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to all items except those of a particular parent ID. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: search_columns in: query required: false schema: type: array default: [] items: enum: - post_title - post_content - post_excerpt type: string description: Array of column names to be searched. - name: search_semantics in: query required: false schema: type: string enum: - exact description: How to interpret the search input. - name: slug in: query required: false schema: type: array items: type: string description: Limit result set to posts with one or more specific slugs. - name: status in: query required: false schema: type: array default: inherit items: enum: - inherit - private - trash type: string description: Limit result set to posts assigned one or more statuses. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/media/{id}: get: operationId: getMediaItem summary: Retrieve a single mediaitem by id description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Media parameters: - name: id in: path required: true description: Unique identifier for the mediaitem. schema: type: integer - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. responses: '200': description: Success content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' /wp/v2/categories: get: operationId: listCategories summary: List categories description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Categories parameters: - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: hide_empty in: query required: false schema: type: boolean default: false description: Whether to hide terms not assigned to any posts. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: order in: query required: false schema: type: string enum: - asc - desc default: asc description: Order sort attribute ascending or descending. - name: orderby in: query required: false schema: type: string enum: - id - include - name - slug - include_slugs - term_group - description - count default: name description: Sort collection by term attribute. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: parent in: query required: false schema: type: integer description: Limit result set to terms assigned to a specific parent. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: post in: query required: false schema: type: integer default: null description: Limit result set to terms assigned to a specific post. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: slug in: query required: false schema: type: array items: type: string description: Limit result set to terms with one or more specific slugs. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/categories/{id}: get: operationId: getCategory summary: Retrieve a single category by id description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Categories parameters: - name: id in: path required: true description: Unique identifier for the category. schema: type: integer - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. responses: '200': description: Success content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' /wp/v2/tags: get: operationId: listTags summary: List tags description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Tags parameters: - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: hide_empty in: query required: false schema: type: boolean default: false description: Whether to hide terms not assigned to any posts. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: offset in: query required: false schema: type: integer description: Offset the result set by a specific number of items. - name: order in: query required: false schema: type: string enum: - asc - desc default: asc description: Order sort attribute ascending or descending. - name: orderby in: query required: false schema: type: string enum: - id - include - name - slug - include_slugs - term_group - description - count default: name description: Sort collection by term attribute. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: post in: query required: false schema: type: integer default: null description: Limit result set to terms assigned to a specific post. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: slug in: query required: false schema: type: array items: type: string description: Limit result set to terms with one or more specific slugs. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/tags/{id}: get: operationId: getTag summary: Retrieve a single tag by id description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Tags parameters: - name: id in: path required: true description: Unique identifier for the tag. schema: type: integer - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. responses: '200': description: Success content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' /wp/v2/comments: get: operationId: listComments summary: List comments description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Comments parameters: - name: after in: query required: false schema: type: string format: date-time description: Limit response to comments published after a given ISO8601 compliant date. - name: author in: query required: false schema: type: array items: type: integer description: Limit result set to comments assigned to specific user IDs. Requires authorization. - name: author_email in: query required: false schema: type: string default: null format: email description: Limit result set to that from a specific author email. Requires authorization. - name: author_exclude in: query required: false schema: type: array items: type: integer description: Ensure result set excludes comments assigned to specific user IDs. Requires authorization. - name: before in: query required: false schema: type: string format: date-time description: Limit response to comments published before a given ISO8601 compliant date. - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: offset in: query required: false schema: type: integer description: Offset the result set by a specific number of items. - name: order in: query required: false schema: type: string enum: - asc - desc default: desc description: Order sort attribute ascending or descending. - name: orderby in: query required: false schema: type: string enum: - date - date_gmt - id - include - post - parent - type default: date_gmt description: Sort collection by comment attribute. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: parent in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to comments of specific parent IDs. - name: parent_exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific parent IDs. - name: password in: query required: false schema: type: string description: The password for the post if it is password protected. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: post in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to comments assigned to specific post IDs. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: status in: query required: false schema: type: string default: approve description: Limit result set to comments assigned a specific status. Requires authorization. - name: type in: query required: false schema: type: string default: comment description: Limit result set to comments assigned a specific type. Requires authorization. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/comments/{id}: get: operationId: getComment summary: Retrieve a single comment by id description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Comments parameters: - name: id in: path required: true description: Unique identifier for the comment. schema: type: integer - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: password in: query required: false schema: type: string description: The password for the parent post of the comment (if the post is password protected). responses: '200': description: Success content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '404': $ref: '#/components/responses/NotFound' /wp/v2/types: get: operationId: listTypes summary: List types description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Types parameters: - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/taxonomies: get: operationId: listTaxonomies summary: List taxonomies description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Taxonomies parameters: - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. - name: type in: query required: false schema: type: string description: Limit results to taxonomies associated with a specific post type. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/statuses: get: operationId: listStatuses summary: List statuses description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Statuses parameters: - name: context in: query required: false schema: type: string enum: - view - embed - edit default: view description: Scope under which the request is made; determines fields present in response. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' /wp/v2/search: get: operationId: listSearch summary: List search description: Derived from the WordPress REST API route discovery document published at https://www.engrail.com/wp-json/ . Anonymous read access verified 2026-08-01. tags: - Search parameters: - name: context in: query required: false schema: type: string enum: - view - embed default: view description: Scope under which the request is made; determines fields present in response. - name: exclude in: query required: false schema: type: array default: [] items: type: integer description: Ensure result set excludes specific IDs. - name: include in: query required: false schema: type: array default: [] items: type: integer description: Limit result set to specific IDs. - name: page in: query required: false schema: type: integer default: 1 minimum: 1 description: Current page of the collection. - name: per_page in: query required: false schema: type: integer default: 10 minimum: 1 maximum: 100 description: Maximum number of items to be returned in result set. - name: search in: query required: false schema: type: string description: Limit results to those matching a string. - name: subtype in: query required: false schema: type: array default: any items: enum: - post - page - category - post_tag - any type: string description: Limit results to items of one or more object subtypes. - name: type in: query required: false schema: type: string enum: - post - term - post-format default: post description: Limit results to items of an object type. responses: '200': description: Success content: application/json: schema: type: array items: type: object headers: X-WP-Total: description: Total number of items in the collection. schema: type: integer X-WP-TotalPages: description: Total number of pages in the collection. schema: type: integer Link: description: RFC 8288 pagination links (rel=next / rel=prev). schema: type: string '400': $ref: '#/components/responses/BadRequest' components: schemas: Error: type: object description: WordPress REST API error envelope (observed live 2026-08-01). 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 properties: status: type: integer description: HTTP status code. params: type: object description: Per-parameter validation messages. details: type: object description: Per-parameter structured error details. required: - code - message - data responses: BadRequest: description: Invalid parameter (rest_invalid_param). content: application/json: schema: $ref: '#/components/schemas/Error' Unauthorized: description: Authentication required or insufficient permission (rest_forbidden). content: application/json: schema: $ref: '#/components/schemas/Error' NotFound: description: No matching resource (rest_post_invalid_id / rest_no_route). content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: applicationPassword: type: http scheme: basic description: WordPress Application Passwords, advertised by the site's own REST index (authentication.application-passwords.endpoints.authorization = https://www.engrail.com/wp-admin/authorize-application.php). Required only for write operations and non-public collections; the operations modelled here are anonymously readable.