How to animate path morphs using snap.svg
Not quite sure if you mean you just want the current animation in Snap or something different. Just to give an example of how one would typically do some animation...
s = Snap(400, 620);
var path = s.path("M94.2,265.7L82,203.4c43.3-15.6,83.8-29.2,137.1-20.2c61.5-27.6,126.1-56.9,202.6 46.1c18.7,18.9,21.5,39.8,12.2,62.3C322.7,231.9,208.2,247.6,94.2,265.7z");
path.animate({ d: "M179.4,83.5l62.4-11.8c15.3,43.4-76,102.6-22.6,111.5c61.5-27.6,126.1-56.9,202.6-46.1c18.7,18.9,21.5,39.8,12.2,62.3C250.6,296.7,52.4,259.2,179.4,83.5z" }, 1000, mina.bounce);
jsfiddle
Edit: There needs to be the same amount of points on the path to morph from/to.
If you're looking for something only for SVG Morph, you may not need the entire SnapSVG library, you can use KUTE.js. Really, take a look at this (Best viewed in Chrome and Firefox):
<div style="width: 220px">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 600 600">
<path id="rectangle" fill="indigo" d="M38.01,5.653h526.531c17.905,0,32.422,14.516,32.422,32.422v526.531
c0,17.905-14.517,32.422-32.422,32.422H38.01c-17.906,0-32.422-14.517-32.422-32.422V38.075C5.588,20.169,20.104,5.653,38.01,5.653z"></path>
<path id="star" style="visibility:hidden" d="M301.113,12.011l99.25,179.996l201.864,38.778L461.706,380.808
l25.508,203.958l-186.101-87.287L115.01,584.766l25.507-203.958L0,230.785l201.86-38.778L301.113,12.011"></path>
</svg>
</div>
<script id="core" src="https://cdn.jsdelivr.net/kute.js/1.5.5/kute.min.js"></script>
<script id="svg" src="https://cdn.jsdelivr.net/kute.js/1.5.5/kute-svg.min.js"></script>
<script>
var tween = KUTE.to('#rectangle', { path: '#star' }, {duration: 1500, yoyo: true, repeat: 1, morphIndex: 127}).start();
document.addEventListener('click', function(){
!tween.playing && tween.start();
}, false);
</script>
It's free and really easy to use.