- APIs require private keys that could be stored on servers running RSS-Bridge,
- which is a security concern, involves complex authorizations for inexperienced users and could cause harm (when using paid services for example). In a closed environment (a server only you use for yourself) however you might be interested in using them anyway. So, check [this](https://github.com/RSS-Bridge/rss-bridge/pull/478/files) possible implementation of an anti-captcha solution.