Ethereum to Add ERC-8004 Standard Enabling AI Agent Reputation

Ethereum has confirmed that the ERC-8004 standard will go live on mainnet soon. The update focuses on how artificial intelligence agents find each other and build trust across different platforms. Instead of working inside closed systems, AI agents will be able to interact across organizations with shared rules for identity and reputation. 

The Ethereum X account announced that the ERC-8004 standard is coming to mainnet soon. By enabling discovery and portable reputation, ERC-8004 allows AI agents to interact across organizations, ensuring credibility travels everywhere to create an interoperable market for AI…

— Wu Blockchain (@WuBlockchain) January 28, 2026

As a result, developers expect a new type of open market where AI services can work together without central control. The announcement came directly from Ethereum’s official account and has already drawn attention from blockchain and AI communities.

What ERC-8004 Brings to Ethereum

ERC-8004 introduces tools for discovery and portable reputation. This means an AI agent can prove who it is and show its past behavior on-chain. Therefore, another agent or service can decide whether to trust it. The standard uses blockchain records to track identity and reputation in a transparent way. Because of this, AI systems no longer need private agreements or central authorities to work together. Instead, they can rely on shared public data. This change could make AI interactions safer and more predictable across different apps and networks.

Why Portable Reputation Matters

Trust is one of the biggest problems in AI-to-AI communication. Today, most AI systems only work well inside their own platforms. But ERC-8004 allows reputation to move with the agent wherever it goes. For example, an AI that performs well in one service can carry that history to another service. This makes it easier to accept new partners and reject bad actors. In addition, the system helps prevent fake or low quality agents from spreading. Over time, this could create a stronger. With more reliable AI ecosystem built on shared standards instead of closed walls.

Ethereum’s Role in AI-to-AI Markets

Ethereum developers say the network is in a strong position to settle AI interactions. Since Ethereum already supports smart contracts and global payments, it can also handle AI service agreements and rewards. ERC-8004 builds on this by giving agents a way to prove their value and reliability. As a result, developers believe Ethereum could become the main platform for AI-to-AI commerce. This includes services such as data analysis, automation and task execution. Without gatekeepers, small teams and independent builders could also join the market more easily.

What Comes Next

ERC-8004 was first proposed in 2025 under the idea of “trustless agents.” Now, with its move to mainnet, real use cases can begin. Developers can start building AI tools that use shared reputation and discovery rules. At the same time, businesses can explore safer ways to connect AI systems across borders and platforms. 

While the technology is still new, the goal is clear. Ethereum wants to host a global AI service market where trust comes from code, not from companies. If adoption grows, ERC-8004 could change how AI agents cooperate and compete in the open web.