Run. Map. Cast.
Runcaster turns Garmin Connect™ activity data into a polished, shareable run card with route, pace, and stats, ready to post as a Farcaster cast.
Garmin activity data → run card → Farcaster cast
Preview
Built for Garmin runners who share
Every run card keeps Garmin attribution visible and ready for export, so your data stays clearly sourced wherever it travels.
Garmin run
Route map card
Farcaster cast preview
How it works
From watch to cast in three steps
Link your Garmin
Authorize access to your Garmin Connect™ account so we can read run activity data.
Generate a run card
We turn activity stats and GPS points into a polished route preview.
Post to Farcaster
Preview your card and share it as a cast whenever you are ready.
Privacy-first
Your data, your control
Runcaster is designed with clear privacy commitments. Your Garmin data is used only to build run cards and is never sold. Sharing happens only when you decide to post a cast.
Read the privacy policyPurpose limitation
Data stays scoped to run card generation and sharing.
User control
Disconnect Garmin or delete data at any time.
Secure by default
TLS in transit and access-controlled storage.
Transparent hosting
Hosted on Vercel with a managed cloud database.
Ready to see your routes in card form?
Open the mini app