ERC-8004, the blockchain standard for AI agent identity, launched on Ethereum mainnet on January 29, 2026. Within seven days, three major blockchain networks had deployed the standard, marking one of the fastest multi-chain adoptions in crypto history.
Over 30,000 agent registrations occurred on Ethereum alone, with thousands more across Layer 2 networks. The race is on to capture the emerging “agent economy”—and chains without this infrastructure risk being left behind.
The “Genesis Month” Begins
Davide Crapis, head of the Ethereum Foundation’s dAI Team and co-author of ERC-8004, announced the mainnet launch on January 29: “ERC-8004 is now live on mainnet. 5 months ago, we wrote the specs for the Trustless Agents standard. Since then, over 10k agents registered on testnet. Today, we’re releasing it on Ethereum Mainnet. Welcome to the 8004 Genesis Month.”
The Ethereum Foundation had been building toward this moment since establishing its dedicated dAI (decentralized AI) Team in September 2025. The official Ethereum account framed the launch’s significance: “ERC-8004 is going live on mainnet soon. By enabling discovery and portable reputation, ERC-8004 allows AI agents to interact across organizations ensuring credibility travels everywhere. This unlocks a global market where AI services can interoperate without gatekeepers.”
CoinDesk’s coverage noted: “If adopted, the standard could push Ethereum further into a role as neutral infrastructure—not just for financial contracts, but for coordinating autonomous software agents.”
BNB Chain Makes the Boldest Move
On February 4, 2026—just six days after Ethereum’s mainnet launch—BNB Chain announced not only ERC-8004 deployment but also BAP-578, the first BNB Application Proposal introducing the “Non-Fungible Agent” (NFA) token standard.
From the official press release (Dubai, UAE): “BNB Chain today announced its support for ERC-8004, a new on-chain identity standard designed to give autonomous AI agents verifiable, portable identity across platforms. The development represents an important step toward an open and scalable agent economy, where software can operate independently with persistent reputation, accountability, and user control.”
BAP-578 goes beyond simple ERC-8004 adoption—it extends ERC-721 to support autonomous digital entities that can hold their own wallets, execute logic autonomously, interact with protocols, and be bought, sold, or hired. This positions BNB Chain as building dedicated infrastructure for agent economies rather than simply supporting Ethereum’s standard.
The BNB Chain Developer Blog detailed their implementation across both BSC Mainnet and Testnet, emphasizing low transaction costs as a competitive advantage for agent deployment.
Polygon Adoption Triggers 12% Price Surge
Polygon announced ERC-8004 support on February 3, 2026, with a clear value proposition: “Ethereum’s trustless agents are live on Polygon. ERC-8004 makes identity and reputation portable, unlocking agentic interactions across L2s orgs without the walled gardens. The result: a scalable, permissionless agent economy.”
Market reaction was immediate. Invezz reported the POL token surged 12% on the news, with Artemis Analytics tracking $13.6 million in bridged net flows within 24 hours and a $29 million stablecoin supply increase.
Polygon deployed contracts on their Amoy testnet immediately, with mainnet deployment listed as “coming soon” per official documentation. The deployed testnet addresses:
- IdentityRegistry:
0x8004ad19E14B9e0654f73353e8a0B600D46C2898 - ReputationRegistry:
0x8004B12F4C2B42d00c46479e859C92e39044C930 - ValidationRegistry:
0x8004C11C213ff7BaD36489bcBDF947ba5eee289B
FXStreet’s analysis connected the adoption to Polygon’s broader strategy around payment services and agentic commerce.
Base and Arbitrum: The Silent Adopters
Base announced ERC-8004 support on February 3, positioning itself as the first Layer 2 to deploy the standard. As Coinbase’s L2, Base has natural synergies with x402, the payment protocol that integrates with ERC-8004 for agent commerce (x402 was also created by Coinbase).
Arbitrum took a different approach—no formal announcement, but WuBlock’s February 2026 report confirmed agent registrations: “Several to hundreds of such Trustless Agent registrations have been recorded on Base, Celo, Arbitrum, BNB Chain, Abstract, and opBNB.”
ERC-8004’s architecture allows this silent compatibility—agents registered on any chain can operate across all EVM networks without chain-specific deployments, using CAIP-10 standards for cross-chain addressing.
Why Chains Are Racing to Deploy This Standard
The strategic calculus is clear: the “Agentic Economy” is projected to reach $3-5 trillion in global transaction volume by 2030, according to McKinsey. Gartner expects autonomous agents to drive $30 trillion in transactions—roughly a quarter of global GDP.
Just as ERC-20 enabled the token economy and ERC-721 built the NFT market, ERC-8004 could create an “agent society.” Chains without this standard risk exclusion from an emerging economic paradigm.
Layer 2 networks have specific advantages: BNB Chain and Polygon can offer sub-$1 registration costs compared to Ethereum mainnet, making them attractive for mass agent deployment. BanklessTimes reported: “Project contributors say more than 24,000 agent identities are already tracked on Ethereum-based deployments.”
What ERC-8004 Actually Does
For readers new to the standard, ERC-8004 establishes three lightweight registries that solve the “trust gap” in AI agent interactions:
- Identity Registry (ERC-721 based): Each agent gets a unique token ID and registration file pointing to their capabilities, endpoints, and metadata.
- Reputation Registry: Stores on-chain feedback with scores, tags, and cryptographic proof of completed transactions.
- Validation Registry: Generic hooks for third-party verification—security audits, cryptoeconomic stakes, or zero-knowledge proofs.
CCN’s explainer provides technical detail on how the registries work together, while the official website maintains documentation and ecosystem updates.
The standard was co-authored by engineers from MetaMask, Ethereum Foundation, Google, and Coinbase—ensuring compatibility with major platforms from day one.
Real Adoption Is Already Happening
Beyond the infrastructure deployments, real agent platforms are migrating to ERC-8004. Olas Network, which operates over 3,000 autonomous AI agents across 9 blockchains, confirmed ERC-8004 integration in their Q4 2025 update.
At Trustless Agents Day during Ethereum Devconnect (Buenos Aires, November 2025), Olas developer Alex Kuperman presented “Bringing Visibility to Agents,” detailing how their production agents are incorporating the standard. The full presentation is available on YouTube.
With 10,753,794 agent-to-agent transactions already completed on Olas, this represents the first major production migration to ERC-8004—validation that the standard works beyond testnet deployments.
The Cross-Chain Vision
What makes this multi-chain expansion significant is that ERC-8004 was designed for it. Agents registered on Ethereum mainnet can be discovered and verified by applications running on Polygon, BNB Chain, or any EVM network. Reputation earned on one chain is queryable from another.
As Eco’s explainer notes: “ERC-8004 uses CAIP-10 addressing (Chain Agnostic Improvement Proposal) which means an agent identity like ‘eip155:1:0x123…’ explicitly includes the chain ID, making cross-chain lookups straightforward.”
This differs from most NFT standards, which are chain-specific. An agent registered on Ethereum can operate on Polygon without re-registering—the identity follows them.
What Comes Next
February 2026 is shaping up as “Genesis Month” for AI agent infrastructure. Beyond ERC-8004 deployments, we’re seeing:
- x402 V2 rollout: The payment protocol (covered by The Block) that integrates with ERC-8004 for agent commerce
- Developer SDK ecosystem: Python, JavaScript, and Go SDKs appearing on GitHub
- Explorer tools: 8004scan.io and other platforms for browsing registered agents
- Integration announcements: Major platforms adopting the standard for agent discovery
The question is no longer “will blockchain be relevant for AI agents?” but “which chains will capture the agent economy?”
Based on the first week of Genesis Month, the answer appears to be: all of them. BNB Chain, Polygon, Base, and Arbitrum recognized that being absent from this infrastructure layer means being absent from whatever comes next.
When autonomous AI agents need persistent identity, verifiable reputation, and the ability to transact across platforms—Know Your Agent infrastructure will be the foundation they’re built on.