Advanced

Protocol internals

Documentation of certain protocol elements, intended for internal use only.

The universal link is used so that the Worldcoin mobile app (iOS & Android) can recognize a World ID request and handle it correctly. The structure of the universal link is documented here. The source of truth function for this can be found , buildQRData function.

  • The universal link base is: https://worldcoin.org/verify.
  • The following parameters must be passed as query string attributes (all required)
    • t contains the connector's handshake topic (from WalletConnect)
    • k contains the connector's key (from WalletConnect)
    • b contains the bridge's URL (with protocol) and must be properly URL encoded (from WalletConnect)
    • v contains the version of WalletConnect used. Currently only WalletConnect v1 is supported.
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