World ID 4.0 introduces a fee system, allowing credential issuers and protocol layers to charge applications for using credentials.

Foresight News reported that World published an article stating that World ID 4.0 introduces a fee system whereby credential issuers (such as the World Foundation) and the protocol layer can charge applications for using Proof of Human credentials, while keeping end users completely free of charge. The fee model includes credential issuer fees (set by the issuer) and protocol base fees. Applications can pay via a pre-funded wallet; Web3 native applications can pay directly on-chain, and Web2 platforms can settle in fiat currency through third parties. This mechanism aims to create sustainable revenue for the World protocol and credential issuers, forming a positive growth cycle.