Free API for webmasters

Our API allows webmasters to easily query our chord database and to publish our diagrams (and more) onto their website. All you need is a valid API key (+ a link back to https://ukulele-chords.com), get one for free!

How does it work?

Here is how to access ukulele-chords.com's data

  • API URL : ukulele-chords.com/get?
  • Parameters : "ak" (your API key), "r" (root note of a chord), "typ" (chord type), "sk" (slashed chord) and "uke" (Tuning)
  • All parameters are compulsory except "sk" and "uke"
  • r is the root note of the chord. Can be set to "A", "Bb", "B" , "C", "Db", "D", "Eb", "E", "F", "Gb", "G" and "Ab"
  • typ is the type of chord. Can be set to "major", "m", "aug", "dim", "7", "m7", "maj7", "m7b5", "sus2", "sus4", "7sus4", "9", "11", "13", "6", "m6", "add9", "m9", "5", "dim7", "m13", "7sus2", "mMaj7", "m11" and "maj9".
  • sk is the altered root note of a slashed chord. Optional. (Accepted values : see "r")
  • uke is the tuning. Can be set to "soprano" (default value), "baritone" (G-tuning), "d-tuning" or "slack-key". Optional.
  • Example: to query Csus2 chord infos, call our API: "http://ukulele-chords.com/get?ak=your_api_key&r=C&typ=sus2"

Output (XML format)

  • chord_name The chord name...
  • chord_diff Difficulty (on 10)
  • chord_diag Chord diagram (200x250)
  • chord_diag_mini Chord diagram (90x130)
  • chord_photo Picture (returns "false" if we don't have the photo)
  • chord_url Link to Ukulele-chords.com for more infos

Returns false if requested chord is not found.

Working PHP example

Not sure about how to use our API? Here is a working example to get a 'C Major' chord diagram, using the SimpleXML extension (native since PHP 5.0):

//XML file to load
$api_url 'http://www.ukulele-chords.com/get?ak=YOUR_API_KEY&r=C&typ=major';
//converts the specified XML file into a SimpleXMLElement object
$xml simplexml_load_file($api_url);
//Navigate through the tree to get your info (chord diagram here)
//chord[0] returns the "main chord". For alternative positions, use a foreach() loop.
$res $xml->chord[0]->chord_diag_mini;
//print the result
echo '<img src="'$res .'" alt="" width="90" height="130" />';

Please contact us or visit our Facebook Page if you need help using our API.

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