The Ethereum Foundation co-developed zkAPI with the Open Anonymity Project, an organization focused on open-source privacy solutions for artificial intelligence.

From the articleEthereum Foundation launches zkAPI to let users pay for AI models without revealing identityAlso in Ethereum Foundation Rolls Out zkAPI for Anonymous AI Payments - Blockonomi, Ethereum Foundation Launches Privacy Tool That Cuts the Link Between AI Prompts and Payers - Unchained, Ethereum targets AI privacy with zkAPI for anonymous API payments - Cryptopolitan