A block explorer for Farcaster | casterscan.com
Casterscan is a block explorer for Farcaster. It currently lets you view:
- a firehose of the latest casts, either as a list or grid
- the details of any cast(text, embeds, responses per API/Snapchain provider)
There are two goals for Casterscan's utility:
- make it easy to access Farcaster data
- give each atomic unit of data available on Snapchain its own URL
- Install dependencies:
bun install - Copy
.env.exampleto a new.env.localfile and add your Neynar API key underNEYNAR_API_KEY - Run the development server:
bun run dev
Have any questions/comments or want to keep up with/contribute to Casterscan?

![Casterscan user signer data on /fids/[fid] as of 9/7/25](https://i.imgur.com/6zFB2dK.png)