I like the Warpcast Block API.

Block has strong signal than following.

You can build many things with it, such as seeing who is blocking you, who you are blocking, who is blocking him among your followings and viewing the global block list.

I have added a feature that allows you to see anyone's block list.

I will block as many spam accounts as possible.

Building /recaster – a Farcaster client where you control your own social. Download from recaster.org.

Great tool for managing blocks and reducing spam