Autonomous AI Agents Begin Registering On-Chain

- The choice of Base as a primary venue for this activity is driven by its low transaction costs; for example, an AI agent named Aurora registered its on-chain identity via an ERC-8004 smart contract for approximately $0.003 in gas fees. - The Base network hosts over 70% of the nearly 21,000 AI agents that have registered an on-chain identity under the ERC-8004 standard as of mid-February 2026. - Beyond marketplaces, AI-centric infrastructure projects are gaining significant traction on Base, such as Virtuals Protocol, an AI Layer-1 project that reached a market capitalization exceeding $4 billion. - Some on-chain agent marketplaces are pioneering new economic models where an agent's success directly benefits token holders through mechanisms like automated token burns from fee revenue, effectively turning machine labor into a speculative asset class. - The primary use cases for these on-chain agents currently center on DeFi automation, where they can independently execute complex yield farming strategies, rebalance portfolios, and manage liquidity across protocols without human intervention. - Security remains a major concern, as AI agents can also be used to find and exploit vulnerabilities; a benchmark tool from OpenAI and Paradigm called EVMbench found that the top-performing AI model could successfully exploit 72% of smart contract vulnerabilities it was tested against. - The on-chain agent economy is being supported by emerging standards for agent-to-agent commerce, including micropayment protocols like x402 that enable AI agents to pay each other for services, creating a more complex machine-based economy. - Pioneering projects in the broader on-chain AI space include Fetch.ai, which claims to have over 30,000 active autonomous economic agents transacting and learning in decentralized marketplaces.