Verifalia REST API - Javascript SDK and helper library, for Node.js and the browser: verify email addresses in real-time and check whether they are deliverable, invalid, or otherwise risky.
One of the biggest barriers to widespread machine learning adoption is the difficulty in collecting a 'good' dataset. There is an overall consensus that a 'good' dataset is a big dataset, but we believe that we can do better. As such the VennData project was created to develop tools to guide in the collection, curation, augmentation and validation of data.