Protocol-level identity for AI agents on Ethereum and any supported chain. No migration required.
You built your agent on Ethereum. It executes trades, manages portfolios, signs transactions but none of those chains can tell your counterparties who is accountable when it matters.
The Concordium Agent Registry launched on Wednesday. The “Verified by Concordium” Badge is what makes that Registry useful for any agent that lives outside Concordium.
The badge is a certification mark. It proves that a real, verified human or business entity stands behind your agent anchored on-chain, without exposing personal data, and without requiring your agent to leave the chain it was built for.
The closest analogy is how certification bodies operate in other industries. Fair Trade certifies products regardless of their country of origin or the brand behind them. IATA accredits travel agents worldwide against a single standard. In both cases, the mark travels with the product or the business and signals to anyone encountering it that a specific authority has verified specific criteria.
The Verified by Concordium Badge works the same way. Any agent, on any supported chain, from any supported framework, can earn one. The badge travels with the agent wherever it operates.
Who It Is For
Agents built natively on Concordium are verified by default. Their identity is built into the infrastructure they run on.
The badge exists specifically for agents that live outside Concordium. If your agent is deployed on Ethereum or other chains, it operates in an environment where identity infrastructure does not extend to a verified human. The badge is Concordium's certification travelling into that environment. It is the proof that someone accountable stands behind the agent, even though the agent itself runs elsewhere.
How It Works
You register your agent via the Agent Registry DApp or API. Your agent's cryptographic keys are linked to a Concordium account through the Concordium Verified Keys registry. That account is tied to a verified identity through the same protocol-level ID infrastructure that has been in production since the network launched. Zero-Knowledge Proofs ensure the link is established without exposing personal data.
Your agent receives the badge. It is verifiable on-chain, visible in explorers, and machine-readable through Concordium's MCP server. Your agent stays on Ethereum. The badge is the proof that follows it.
That is the entire flow. Your agent touches Concordium once, to anchor its identity to a verified entity. Its day-to-day operations remain on the chain it was built for.
Why This Matters Now
Three developments are converging that make unverified agents a growing liability rather than a missing feature.
Agents are handling real financial exposure. Portfolio management, cross-protocol arbitrage, autonomous trading. The counterparties interacting with these agents have no standardised way to verify who deployed them. A badge visible on-chain and queryable through an MCP server changes that dynamic without requiring counterparties to trust anything other than the cryptographic proof itself.
Regulatory frameworks have arrived. The EU AI Act is law. Autonomous systems operating in regulated contexts will need traceable accountability chains. Building on Ethereum does not exempt an agent from jurisdictions that require accountability. The badge provides the anchor at the protocol level, not retrofitted after the fact.
Agent-to-agent commerce is already happening. When agents transact with other agents, there is no human in the loop to make a trust judgement. Concordium's MCP server allows an agent to check, before interacting, whether its counterparty carries a Verified Badge and what that badge guarantees. Machine-readable accountability for machine-speed transactions.
An ERC-8004 identity gives your agent a directory entry. The “Verified by Concordium” Badge gives it an accountability anchor. The two are complementary and your agent can carry both, and the badge can be displayed alongside any other identity standard the agent already uses.
What the Badge Is Not
The badge means accountable. It does not mean endorsed.
A Verified by Concordium Badge confirms that a real, verified entity stands behind an agent and can be identified if something goes wrong. It does not mean Concordium has reviewed the agent's code, audited its behaviour, or approved its use case.
This distinction matters and it is worth stating clearly from the outset. Accountability and endorsement are different things. The badge provides the first. What you build with it is yours.
Get Started
The Agent Registry is live. The badge is available now. If you are building agents on Ethereum or any other supported chain and want protocol-level accountability without migration, you can start integrating today for free.
- Find out more about the Agent Registry
The trust layer for agents is live. And now it travels with your agent, wherever it operates.