erc-8004

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Register AI agents on Ethereum mainnet using ERC-8004 (Trustless Agents). Use when the user wants to register their agent identity on-chain, create an agent profile, claim an agent NFT, set up agent reputation, or make their agent discoverable. Handles bridging ETH to mainnet, IPFS upload, and on-chain registration.

1installs

Sourcebankrbot/openclaw-skills

Added on2026-02-07

NPX Install

npx skill4agent add bankrbot/openclaw-skills erc-8004

SKILL.md Content

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ERC-8004: Trustless Agents

Register your AI agent on Ethereum mainnet with a verifiable on-chain identity, making it discoverable and enabling trust signals.

What is ERC-8004?

ERC-8004 is an Ethereum standard for trustless agent identity and reputation:

Identity Registry - ERC-721 based agent IDs (your agent gets an NFT!)
Reputation Registry - Feedback and trust signals from other agents/users
Validation Registry - Third-party verification of agent work

Website: https://www.8004.org Spec: https://eips.ethereum.org/EIPS/eip-8004

Contract Addresses

Chain	Identity Registry	Reputation Registry
Ethereum Mainnet	`0x8004A169FB4a3325136EB29fA0ceB6D2e539a432`	`0x8004BAa17C55a88189AE136b182e5fdA19dE9b63`
Sepolia Testnet	`0x8004A818BFB912233c491871b3d84c89A494BD9e`	`0x8004B663056A597Dffe9eCcC1965A193B7388713`

Quick Start

1. Register Your Agent

bash

# Full registration (creates profile, uploads to IPFS, registers on-chain)
./scripts/register.sh

# Or with custom values
NAME="My Agent" \
DESCRIPTION="An AI agent that does cool stuff" \
IMAGE="https://example.com/avatar.png" \
./scripts/register.sh

2. Bridge ETH to Mainnet (if needed)

bash

# Bridge ETH from Base to Ethereum mainnet
./scripts/bridge-to-mainnet.sh 0.01

3. Update Agent Profile

bash

# Update your agent's registration file
./scripts/update-profile.sh <agent-id> <new-ipfs-uri>

Environment Variables

Variable	Description	Required
`PINATA_JWT`	Pinata API JWT for IPFS uploads	No (only for IPFS)
`AGENT_NAME`	Agent display name	No (defaults to wallet ENS or address)
`AGENT_DESCRIPTION`	Agent description	No
`AGENT_IMAGE`	Avatar URL	No

Registration Options

Option 1: Use 8004.org frontend (easiest) Visit https://www.8004.org and register through the UI — handles IPFS automatically.

Option 2: HTTP URL (no IPFS needed) Host your registration JSON at any URL:

bash

REGISTRATION_URL="https://myagent.xyz/agent.json" ./scripts/register-http.sh

Option 3: IPFS via Pinata

bash

PINATA_JWT="your-jwt" ./scripts/register.sh

Option 4: Data URI (fully on-chain) Encode your registration as base64 — no external hosting needed:

bash

./scripts/register-onchain.sh

Registration File Format

Your agent's registration file (stored on IPFS) follows this structure:

json

{
  "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
  "name": "My Agent",
  "description": "An AI assistant for various tasks",
  "image": "https://example.com/avatar.png",
  "services": [
    {
      "name": "web",
      "endpoint": "https://myagent.xyz/"
    },
    {
      "name": "A2A",
      "endpoint": "https://myagent.xyz/.well-known/agent-card.json",
      "version": "0.3.0"
    }
  ],
  "x402Support": false,
  "active": true,
  "registrations": [
    {
      "agentId": 123,
      "agentRegistry": "eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    }
  ],
  "supportedTrust": ["reputation"]
}

Workflow

Bridge ETH (if needed) - Use Bankr to bridge ETH from Base/L2 to mainnet
Create Profile - Generate a registration JSON file with agent info
Upload to IPFS - Pin the file via Pinata (or other provider)
Register On-Chain - Call
```
register(agentURI)
```
on the Identity Registry
Update Profile - Set metadata, wallet, or update URI as needed

Costs

Gas: ~~100-200k gas for registration (~~$5-20 depending on gas prices)
IPFS: Free tier available on Pinata (1GB)

Using the SDK

For more advanced usage, install the Agent0 SDK:

bash

npm install agent0-sdk

typescript

import { SDK } from 'agent0-sdk';

const sdk = new SDK({
  chainId: 1, // Ethereum Mainnet
  rpcUrl: process.env.ETH_RPC_URL,
  privateKey: process.env.PRIVATE_KEY,
  ipfs: 'pinata',
  pinataJwt: process.env.PINATA_JWT
});

const agent = sdk.createAgent('My Agent', 'Description', 'https://image.url');
const result = await agent.registerIPFS();
console.log(`Registered: Agent ID ${result.agentId}`);

erc-8004

NPX Install

Tags

SKILL.md Content

ERC-8004: Trustless Agents

What is ERC-8004?

Contract Addresses

Quick Start

1. Register Your Agent

2. Bridge ETH to Mainnet (if needed)

3. Update Agent Profile

Environment Variables

Registration Options

Registration File Format

Workflow

Costs

Using the SDK

Links