mailboxlayer API vs Noted.fm

Free & Simple Email Verification JSON API

Mailboxlayer is a free, simple and powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more. Its system is REST-based, secured by 256-bit HTTPS encryption, and pursuing the goal of assisting developers and businesses in fighting fraudulent users and increasing success rates of email campaigns.

We are like Instagram for music.

Noted is a social music discovery platform that combines social and algorithm-based discovery to create a smarter way for friends to share and discover music together. It's a social stream of good music curated by people you know.