Unlocking Ethereum’s Next Era: The Rise of AI Agent-Centric Layer 2s

The most strategically valuable Layer 2 (L2) solutions for Ethereum may not be those optimizing wallets and DeFi for human users. Instead, the true exponential growth and explosion of on-chain activity could stem from L2s specifically engineered for AI Agents. This paradigm shift has the potential to cement Ethereum’s role as the “trust and coordination layer for the AI world.”

A new wave of users is emerging: AI Agents. Already, over 20,000 AI Agents are active on Ethereum, experiencing a rapid surge following the launch of the ERC-8004 standard. These digital entities don’t require browsers, mobile apps, or polished user interfaces. Their critical needs are distinct: high-frequency microtransactions, low latency, verifiable computation, robust privacy protection, and seamless machine-to-machine payments.

While human users leverage L2s primarily for reduced gas fees and faster transaction confirmations, AI Agents utilize them for 24/7 autonomous strategy execution, intricate collaboration, service fee payments, and intent settlement.

Ethereum’s Infrastructure Prepares for the AI Influx

Ethereum’s foundational infrastructure is steadily evolving to meet these demands:

ERC-8004 is paving the way as the essential “trust infrastructure” for AI Agents. Scheduled for official launch on the mainnet and various L2s in late 2025 or early 2026, this standard will provide AI Agents with on-chain identities, reputation registries, and verification mechanisms. This enables Agents to “discover, evaluate, and trust” one another across different organizations and chains, eliminating the need for centralized intermediaries.

As the scale and pace of AI Agent development accelerate, L2s are poised to transform into “economic coordination layers” for Agents, rather than merely “frontend interface layers” for humans.

Key Characteristics of AI Agent-Optimized Layer 2s

Truly innovative L2s will be purpose-built to serve the unique requirements of AI Agents:

• Ultra-Low Gas Fees: Agents require dozens, if not hundreds, of interactions per second for tasks like real-time arbitrage, data feeding, and risk assessment. Extremely low gas fees are paramount. Platforms like Base have already demonstrated gas-free or ultra-low-cost machine payments via the x402 protocol.
• Advanced Privacy: Privacy is becoming a critical demand. When AI Agents handle sensitive strategies, user intents, or private data, they require Zero-Knowledge (ZK) proofs or Fully Homomorphic Encryption (FHE) to conceal computations while still ensuring verifiable results. ZK rollups are a natural fit for this. This could represent a pivotal opportunity for ZKsync to solidify its position.
• Intent Networks and Multi-Agent Collaboration: Users should be able to simply state their intent (e.g., “Find me the highest ETH yield strategy on Base”). In the background, multiple specialized Agents (strategy, risk, execution) would automatically divide tasks, negotiate, and execute the request.
• Robust Agent Economic Ecosystems: These L2s must support Agent-to-Agent payments, staking, slashing (punishment for malicious behavior), and reputation accumulation. Agents should be capable of managing their own holdings, engaging in lending, and even forming Decentralized Autonomous Organizations (DAOs).
• High Throughput & Verifiable Off-Chain Computation: A viable pathway involves Agents performing extensive computations off-chain, with the results then submitted to the blockchain for verification (e.g., via ZK proofs).

Emerging Trends and Platforms

Several platforms are already adapting to this evolving landscape:

• Optopi: An L2 specifically designed for AI Agents, built on the OP Stack. Its core objective is to achieve daily active AI users that far surpass human users, establishing itself as the premier “AI Agent L2.”
• Base: With its gas-free transactions, x402 payments, and ERC-8004 support, Base is attracting a significant number of Agents running DeFi automation and social coordination tasks.
• Other ZK L2s (e.g., zkSync, Linea): Due to their inherent privacy and verifiability features, these L2s are increasingly being viewed as the preferred execution environments for AI Agents. It’s plausible that by 2026, ZK rollups will dominate machine-to-machine transactions.

The focus is shifting from “how to make the chain more comfortable for humans” to a complete re-architecture. Imagine a blockchain with zero human users, populated solely by countless AI Agents autonomously organizing, transacting, and collaborating.

In this future, the most impactful L2s will be those that empower AI Agent economies to scale, foster trust, and achieve profitability.

The Bottom Line

L2s designed specifically for AI Agents are the true key to unlocking Ethereum’s next 10x growth. While human-centric L2s will continue to exist, Agent-exclusive L2s will usher in an entirely new scale of on-chain economy, Total Value Locked (TVL), and narrative. The future may not be about “humans going on-chain,” but rather “Agents bringing human intents and assets on-chain.”

(The above content is an authorized excerpt and reprint from our partner Lanhu Biji)