Crypto
Ethereum Foundation deploys zkAPI on mainnet for anonymous AI API fee payments
The Ethereum Foundation has activated zkAPI on the Ethereum mainnet, enabling anonymous payment of API fees for AI services. Built jointly with the Open Anonymity Project, the system lets users deposit ETH or USDC into a smart contract and prove only that they hold sufficient balance using zero-knowledge proofs. Servers verify proofs and issue short-lived API keys. The article notes potential limits such as IP-based correlation and repeated personal signals across sessions.