Ethereum zkAPI Keeps Your AI Prompts and Payments Anonymous
A new Ethereum system lets users pay for AI queries in USDC without tying their wallet address to their prompts.
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Key takeaways
- Ethereum developers introduced zkAPI to mask identity during AI queries.
- Users prepay for usage in USDC and access models via zero-knowledge proofs.
- The setup ensures no single entity sees both who paid and what was asked.
You can now query AI models without leaving a paper trail back to your crypto wallet. Ethereum's new zkAPI protocol makes that happen by pairing USDC payments with zero-knowledge cryptographic proofs.
Breaking the Data Chain
Usual AI platforms log your payment details right alongside your prompt history. If that database leaks, your private queries become public record. Ethereum's zkAPI severs that link entirely.
You prepay for compute access using USDC. When you send a prompt to an AI model, cryptographic proofs step in to confirm you have valid credit. The system verifies the payment without ever exposing the wallet address behind it. That means no single party sees both who you are and what you asked.
Why it matters
People send sensitive data to AI every day—proprietary code, financial strategies, personal questions. Right now, tech companies store all of it. For crypto users, zkAPI turns USDC into an actual tool for operational security. It lets you buy compute power on-chain while keeping your intent, research, and identity off the grid.
Source: Decrypt
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Priya Nair
Priya covers the AI side of crypto — agent tokens, decentralised compute and where the two industries actually meet.
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