Iframely Gateway API Reference

Iframely Gateway is powerful self-hosted embeds endpoint, simple API for responsive widgets and meta. It returns JSON object with all parsed embed and semantic meta data for the requested URL.

You host the API on your own servers and domain (however, feel free to use API hosts of iframely.com for your dev or open-source purposes).

The main endpoint: {YOURHOST.HERE}/iframely?uri={URL}

All endpoints are called using GET methods. All URLs need to be URL-encoded.

NEW: /oembed endpoint, the adapter for oEmbed v1

v0.5.3 added new endpoint for reverse compatibility of any existing oEmbed consumer implementations. Still, returning responsive widgets code and all good semantic data.


The format and callback parameter for JSONP support are both optional. Default format is JSON.

Given this endpoint, you can just change the URL in your existing oEmbed lib and start receiving the data. Iframely Gateway will convert its responsive widgets into <html> field of oEmbed JSON, choosing the best embed object (as oEmbed allows only one).

photo and rich types are supported. If Iframely doesn't have any embed codes for given URL, it will return link type object. The additional unified semantic information as well as thumbnails are returned for all URLs. See the list of meta fields below.

Main /iframely API Endpoint


  • uri - (required) URI of the page to be processed.
  • refresh - (optional) You can request the cache data to be ingored by sending true. Will unconditionally re-fetch the original source page.
  • group - (optional) You can add the extra parameter "group=true" to use different output in JSON - the records groupped by link rel. See below.
  • optional whitelist=true will add the domain record from the latest file on the server. See file format.

Returns JSON of the following structure (see example):

  "meta": {                       -- meta object with the unified semantics
    "title": "BLACK&BLUE",        -- e.g. title and others
  "links": [                      -- List of embed widgets
      "href": "//player.vimeo.com/video/67452063",  
                                  -- SRC of embed
      "type": "text/html",        -- MIME type of embed method.
      "rel": [                    -- List of functional use cases. For example,
        "player"                  -- `player` - is widget with media playback
      "title": "BLACK&BLUE",      -- different titles, for different content on the page
      "media": {                  -- "media query" semantics to indicate responsive sizes
        "aspect-ratio": 1.778     -- e.g. fluid widget with fixed aspect ratio

Please, refer to Iframely Protocol to get the idea of embeds via <link> element.

Unified and Merged META

Most web pages have organic <meta> data published using different semantics standards and optimized for different platforms. For example, oEmbed, Open Graph, Twitter Cards, core HTML meta for Google, Dublin Core, Parsely, Sailthru, etc.

Iframely Gateway merges various semantics into fields with unified consistent naming keys, so you can reliably use them in your app (if they are present, of course).

Iframely API returns meta object that may contain the following fields at the moment:

General meta:

  • title
  • description
  • date (the publication date)
  • canonical - canonical URL of the resource
  • shortlink - URL shortened through publisher
  • category
  • keywords


  • author
  • author_url
  • copyright
  • license
  • license_url
  • site

Stats info:

  • views - number of views on the original host, e.g. YouTube
  • likes
  • comments
  • duration (in seconds, duration of video or audio content)

Geo data (as per Open Graph spec):

  • country-name
  • postal-code
  • street-address
  • region
  • locality
  • latitude
  • longitude

Product info (per Pinterest spec):

  • price
  • currency_code
  • brand
  • product_id
  • availability
  • quantity

You can get all current attributes are listed in /meta-mappings endpoint. Check it.

List of Embed Widget Links

links is the list of objects with fields rel, href, type and media.

You can generate embed codes for it as referenced in Iframely Protocol spec.

Values of rel

rel object contains an array of functional use cases. You need to chose link with rel which is better suiteable for your apps functionality.

  • player - widget with media playback. Like video or music or slideshow players
  • thumbnail - the preview image
  • image - sizeable image, indicating that this is the main content on the web page. For use in e.g. photo albums "details" page
  • reader - text or graphical widget intended for reader functionality (e.g. article)
  • file - downloadable file
  • icon - attribution favicon or glyph
  • logo - logo the source site. Is returned mostly for pages with the news article (custom ones) for better attribution

Iframely uses supplementary rels as the way of attributing to the origin of the data:

  • og - link extracted from Open Graph markup. Beware, players rendered through og have higher chance of being unreliable.
  • twitter - link extracted from Twitter Cards semantics.
  • oembed - link extracted from oEmbed/1 object.

You would need to make a decision wheather you trust specific origins or not or use Iframely Domains DB.

Our Domains DB will extend the coverage to 900+ domains, converting oEmbed, Open Graph or Twitter Cards into responsive widgets and also give you additional rels, for example ssl and autoplay for players, so that you can make better user experience decisions.

MIME type

MIME type defines a method to render link as widget.

MIME type is an expected HTTP response "content-type" header of a resource behind "href". Type of content defines the rendering method.

There are following types at the moment:

  • "text/html" - widget needs to be rendered as <iframe>.
  • "application/javascript" - JavaScript widget with dynamic page embedding with as <script>.
  • "application/x-shockwave-flash" - Flash widget, will be rendered with <iframe>.
  • "video/mp4" - HTML5 video. Will be rendered with as <video>.
  • "image" - this is image which will be rendered with as <img>. Below are the specific image types. If format is not specified, the engine will try to detect it by fetching image's descriptors.
    • "image/jpeg"
    • "image/icon"
    • "image/png"
    • "image/svg"

Sizes in media query

Media section is for media query. Iframely generates attributes as well as puts it into usable JSON.

You can use iframely.js to render responsive widgets.

Plugins use the following media query attributes at the moment:

  • width
  • min-width
  • max-width
  • height
  • min-height
  • max-height
  • aspect-ratio - available only if width and height not present

Group By Rel

If you are interested in specific rel use case, you can send &group=true get parameter to the API endpoint.

If will result in the response being groupped by rel:

  "meta": {
    "canonical": "http://vimeo.com/67452063",
    "title": "BLACK&BLUE",
    "author": "Ruud Bakker",
    "author_url": "http://vimeo.com/ruudbakker",
    "duration": 262,
    "site": "Vimeo",
    "description": "..."
  "links": {
    "player": [
        "href": "//player.vimeo.com/video/67452063",
        "type": "text/html",
        "rel": [
        "title": "BLACK&BLUE",
        "media": {
          "aspect-ratio": 1.778
    "thumbnail": [
        "href": "http://b.vimeocdn.com/ts/439/417/439417999_1280.jpg",
        "type": "image",
        "rel": [
        "title": "BLACK&BLUE",
        "media": {
          "width": 1280,
          "height": 720
    "icon": [
        "href": "http://a.vimeocdn.com/images_v6/apple-touch-icon-72.png",
        "type": "image",
        "rel": [
        "title": "BLACK&BLUE",
        "media": {
          "width": 72,
          "height": 72

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