openapi: 3.1.0 info: title: Cresilon oEmbed API version: wp/v2 summary: oEmbed 1.0 provider endpoint for cresilon.com URLs. description: Cresilon publishes its corporate website (cresilon.com) on WordPress (WordPress.com Atomic hosting, nginx) with the core WordPress REST API enabled and anonymously readable. This specification was DERIVED by discovering the live route index at https://cresilon.com/wp-json/ and probing each route for anonymous access; only routes verified to return HTTP 200 without credentials are documented here as public operations. Write operations exist on the same routes but require authentication (WordPress cookie + X-WP-Nonce, or Application Passwords) and are not documented here; anonymous requests to them return HTTP 401. This is NOT a product API offered by Cresilon to customers — Cresilon is a biotechnology and medical-device manufacturer, not a software vendor. This is the content API of their marketing site, captured for discovery purposes. This document covers the oEmbed discovery route WordPress registers, which returns embeddable rich metadata (title, author, thumbnail, iframe HTML) for any cresilon.com news post or page. Note the sibling `/oembed/1.0/proxy` route exists but is NOT anonymously readable — it returns HTTP 401 — and is therefore not documented here. contact: name: Cresilon url: https://cresilon.com/contact-us/ email: info@cresilon.com license: name: Site content — all rights reserved, see Terms of Use url: https://cresilon.com/terms-of-use/ x-apis-io-provenance: method: derived source: https://cresilon.com/wp-json/ derived_on: '2026-08-04' note: Routes enumerated from the live wp-json discovery document (1,021 routes across 45 namespaces); every operation below was probed anonymously and returned HTTP 200. Schemas reflect the field set observed in live responses on 2026-08-04, including the `acf` (Advanced Custom Fields), Jetpack and `yoast_head_json` extensions this site adds. No fabricated operations or parameters. servers: - url: https://cresilon.com/wp-json description: Production tags: - name: oEmbed description: oEmbed 1.0 rich metadata for Cresilon URLs. paths: /oembed/1.0/embed: get: tags: - oEmbed operationId: getOEmbed summary: Get oEmbed data for a Cresilon URL description: oEmbed 1.0 provider endpoint for cresilon.com URLs. Returns embeddable rich metadata for news posts and site pages. Verified live 2026-08-04 in both JSON and XML. parameters: - name: url in: query required: true description: The cresilon.com URL to retrieve embed information for. schema: type: string format: uri - name: format in: query description: Response format. schema: type: string enum: - json - xml default: json - name: maxwidth in: query description: Maximum width of the embed frame in pixels. schema: type: integer default: 600 - name: maxheight in: query description: Maximum height of the embed frame in pixels. schema: type: integer responses: '200': description: oEmbed data for the requested URL. content: application/json: schema: $ref: '#/components/schemas/OEmbedResponse' examples: home: summary: oEmbed for the Cresilon home page externalValue: https://cresilon.com/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fcresilon.com%2F text/xml: schema: type: string description: oEmbed XML serialization. '404': $ref: '#/components/responses/NotFound' components: parameters: id: name: id in: path required: true description: Unique numeric identifier for the object. schema: type: integer page: name: page in: query description: Current page of the collection. Defaults to 1. schema: type: integer minimum: 1 default: 1 perPage: name: per_page in: query description: 'Maximum number of items to be returned in the result set. Verified live: values outside 1-100 return HTTP 400 `rest_invalid_param`.' schema: type: integer minimum: 1 maximum: 100 default: 10 search: name: search in: query description: Limit results to those matching a string. schema: type: string order: name: order in: query description: Order sort attribute ascending or descending. schema: type: string enum: - asc - desc default: desc orderby: name: orderby in: query description: Sort collection by object attribute. schema: type: string enum: - author - date - id - include - modified - parent - relevance - slug - include_slugs - title default: date context: name: context in: query description: Scope under which the request is made; determines fields present in the response. Only `view` and `embed` are available anonymously — `edit` returns HTTP 401. schema: type: string enum: - view - embed default: view fields: name: _fields in: query description: Comma-separated list of fields to limit the response to. Verified live, e.g. `_fields=id,slug,link,title`. schema: type: string embed: name: _embed in: query description: Embed linked resources (author, featured media, terms) into the response. schema: type: boolean include: name: include in: query description: Limit result set to specific IDs. schema: type: array items: type: integer exclude: name: exclude in: query description: Ensure result set excludes specific IDs. schema: type: array items: type: integer offset: name: offset in: query description: Offset the result set by a specific number of items. schema: type: integer slugParam: name: slug in: query description: Limit results to items with one of the given slugs. schema: type: array items: type: string responses: NotFound: description: The requested object does not exist. content: application/json: schema: $ref: '#/components/schemas/Error' example: code: rest_post_invalid_id message: Invalid post ID. data: status: 404 InvalidParam: description: One or more query parameters failed validation. content: application/json: schema: $ref: '#/components/schemas/Error' example: 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) Unauthorized: description: 'The route exists but requires authentication. Verified live: anonymous requests to privileged routes return this envelope with HTTP 401.' content: application/json: schema: $ref: '#/components/schemas/Error' example: code: rest_forbidden message: Sorry, you are not allowed to do that. data: status: 401 schemas: OEmbedResponse: type: object description: An oEmbed 1.0 `rich` response for a cresilon.com URL. Field set observed live on 2026-08-04. properties: version: type: string const: '1.0' provider_name: type: string example: Cresilon provider_url: type: string format: uri example: https://cresilon.com author_name: type: string author_url: type: string format: uri title: type: string type: type: string example: rich width: type: integer height: type: - integer - 'null' html: type: string description: Embeddable iframe markup for the WordPress post embed. thumbnail_url: type: string format: uri thumbnail_width: type: integer thumbnail_height: type: integer required: - version - provider_name - provider_url - type Error: type: object description: The WordPress REST error envelope, verified live against cresilon.com. Note this is NOT RFC 9457 application/problem+json — it is served as application/json with a WordPress-specific shape. 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, repeated in the body. params: type: object additionalProperties: type: string details: type: object additionalProperties: true required: - status required: - code - message - data