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JEM

Browser Extension Wallet

Pages interact with the extension through window.jems.

Provider API

  • jems.requestConsent({ siteId }) – prompts the user to authorize a site.
  • jems.getAddress() – resolves to the active account address.
  • jems.getWeight() – resolves to the current engagement weight.
  • jems.emit(kind, { metaHash }) – submit a hashed ActionEvent.
  • jems.revokeConsent(siteId) – remove a previously approved origin.

The extension maintains a light client in a background service worker and periodically prompts the user for liveness via WebAuthn.