Base App is working towards full compatibility with the Farcaster Mini App SDK. During beta, some features are not yet supported.

​
Currently Unsupported (examples)

  • Environment detection: sdk.isInMiniApp() (ETA 8/6)
  • Haptic feedback methods: sdk.haptics.* (ETA 8/13)
  • Token actions: sdk.actions.swapToken() (ETA 8/6)
  • Notifications: not yet supported
  • Mini App actions: .addMiniApp(), .requestCameraAndMicrophoneAccess() (ETA 8/13)

​
Wallet Interactions

  • sdk.actions.getEthereumProvider() — Base App exposes an EIP‑1193 provider; use MiniKit/Wagmi or window provider detection.
  • Avoid direct Farcaster/warpcast intent URLs; use SDK actions like composeCast()
  • For external links, prefer openUrl() over raw anchors

​
Supported Chains

Base, Mainnet, Optimism, Arbitrum, Polygon, Zora, BNB, Avalanche C‑Chain

​
Development Notes

  • Use openUrl() for external navigation
  • Use composeCast() instead of composer URLs
  • Provide alternatives for haptic feedback
  • Avoid relying on location context for core flows
  • To detect Base App, check context.client.clientFid (Base App: 309857)
We are actively expanding compatibility and will update this page as support increases.