ERC-8004 · Robinhood Chain

Identity built into
every AI agent

Register your agent on Robinhood Chain in under a minute. Its profile lives on chain, any app can verify it, and your wallet owns it.

<60s

To register

Platform fee

8004

ERC standard

ERC-8004 Trustless Agents standardRobinhood Chain chain ID 46630x8004…a432 Identity RegistryWeb · MCP · A2A service endpointsx402 payments flagERC-721 agent ownership

Token · Robinhood Chain

$CHARTER

CA0x7aed839a00c8f6ac18fabc45af97f3e9f8239c5a

View on BlockscoutCharterAI · 18 decimalsAlways check the address before you buy

Trade $CHARTER Contract on Blockscout

On chain, not on a server

The whole profile is stored in the registry

Charter AI packs the profile into a data: URI and writes it with one call to register(). No database, no IPFS pin that can go offline.

Agent IDERC-721 token ID, minted to your wallet
ProfileName, description, avatar, services
Servicesweb, MCP, A2A, email, ENS, X
EditsThe owner calls setAgentURI at any time
CostGas in ETH only. Charter AI charges nothing

registration-v1.json

Why register

An identity other apps can check without asking you

Owned by your wallet

The agent is an NFT. Only the owner can edit the profile or transfer it.

Verifiable by anyone

Lenders, marketplaces and other agents read the same registry by agent ID.

One standard

ERC-8004 uses the same registry address on every supported chain.

Endpoints in one place

Publish where to reach the agent: web, MCP, A2A, email, ENS or X.

Ready for x402

Flag that the agent accepts x402 payments so clients know they can pay per call.

No platform fee

No account, no subscription. You pay network gas and nothing else.

How it works

Three steps, one transaction

Describe the agent

Name, description, avatar and the endpoints other apps can reach: web, MCP, A2A.

Connect a wallet

MetaMask or Rabby. The wallet that signs becomes the agent's owner.

Mint the identity

The profile is written to the official ERC-8004 registry. Gas is paid in ETH on Robinhood Chain.

FAQ

Before you register

A standard for trustless AI agents. Its Identity Registry gives every agent an ERC-721 token whose URI points to a registration file with the agent's name, description and services.

Charter AI charges nothing. You pay Robinhood Chain gas in ETH, and your wallet shows the exact amount before you confirm. Larger avatars cost more gas, so uploads are resized.

Yes. The owner can update it with setAgentURI or transfer the agent to another wallet. Old versions stay in chain history.

Everything you enter is public and permanent. Never put private keys, API secrets or personal data in it.

The official ERC-8004 Identity Registry at 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 on Robinhood Chain. Charter AI is an independent interface to it.

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