The Render API by MixerFactory leverages their video rendering engine to add video editing capabilities to web and mobile apps. The API uses XML and POST/GET methods, and requires an API Key for authentication. Input video, images, or sound and, with video structure description in XML, Render API will output videos in MOV, MP4, or FLV. Accepted input formats include: flv, wmv, tiff, jpg, wav, mp3, and png or gif. See the extensive documentation for more information and code samples.