If looking to convert an existing web app into a mini app, see Convert Web App to Mini App.
This tutorial shows how to create a Farcaster mini app (previously known as Farcaster frames) with one simple command in less than 60s using the Neynar Starter Kit.
Neynar Starter Kit demo app screenshot in dark modeNeynar Starter Kit demo app screenshot in light mode
Simply type npx @neynar/create-farcaster-mini-app@latest in any terminal window to get started with the template, or check out the live demo of the Neynar Starter Kit on Farcaster.
  • package is open source (github repo)
  • using neynar services is optional
  • demo API key is included if you haven’t subscribed yet
The flow:
  • generates signature required by mini app spec on your behalf and puts in the farcaster manifest
  • sets up splash image, CTA, etc. as part of workflow (incl. personalized share images, more on that below)
  • spins up a localtunnel hosted url so you can debug immediately, no need to ngrok or cloudflare on your own
  • if you use neynar:
    • automatically fetches user data
    • automatically sets sets up notifications and analytics (just put in your client id from the dev portal)
See < 1 min video here that goes from scratch to testable mini app:
If you have questions or feature requests, please reach out to @veganbeef or @rish. We are always looking forward to working with developers!
If you want to sign in users with a Farcaster signer into your mini app, use

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Appendix

A great way to make your mini app go viral is to give your users personalized share images / urls that they can share on their social media timelines. Our starter kit makes it easy. Simply add /share/[fid] at the end of your mini app domain to create a personalized share image for that user e.g. [your_url].[extension]/share/[fid] should create an embed image like below: Original(1) Avi