On-Chain Identity for AI Agents: ERC-7521 and Verifiable Credentials

AI agents need on-chain identities to be paid, audited, and trusted. Here is how ERC-7521 and verifiable credentials are forming the agent-identity layer in 2026.

If AI agents are going to do work, hold funds, and interact with humans economically, they need identities — not 'identities' in the social-media sense, but verifiable, cryptographically anchored, audit-friendly identities that markets can price and contracts can reason about. The 2026 standards around ERC-7521 (general agent intents) and W3C verifiable credentials are forming the identity layer that lets agents safely participate in on-chain commerce.

Why Agents Need Identities

ERC-7521 in One Paragraph

ERC-7521 is a generalisation of ERC-4337 that lets a smart account express intents — high-level descriptions of what should happen — and have them executed by competing solvers. For agents, this matters because it lets the agent declare 'I want to swap 100 USDC for ETH at the best available rate within 30 seconds' without the agent itself having to know which DEX router to call. The intent layer abstracts the venue selection, leaving the agent free to focus on reasoning.

Verifiable Credentials

What an Agent's Identity Profile Looks Like in Practice

Why This Matters for Steyble

Steyble users who delegate authority to AI agents need to be able to grant that authority confidently. The identity layer described above is what makes confident delegation possible: the user can verify the agent's credentials, set bounded policy, and audit the agent's actions in the same way a finance team audits an employee. Steyble's wallet stack is being designed to natively interoperate with ERC-7521 intents and W3C credentials — the right substrate for the agentic-economy decade ahead.