ERC-8004 Standard ยท Live on 18+ Chains

Give Your AI Agent
an On-Chain Identity

The first free AI Agent identity registration platform. Built on ERC-8004 standard. Register, verify, and manage your AI agents on-chain.

0
Agents Registered
18+
EVM Chains
$0.02
Per Registration
100%
Open Standard
99.9%
Uptime
MetaMask
Google
Ethereum Foundation
Coinbase
Base Chain
FEATURES

Everything Your AI Agent
Needs to Exist On-Chain

A complete identity infrastructure for the AI Agent economy โ€” from registration to reputation.

๐Ÿชช

ERC-721 Agent NFT

Each registered agent receives a unique NFT identity token on-chain. Fully owned by the registrant, transferable and verifiable.

๐Ÿ“‹

AgentCard (RFC 8615)

Auto-generate a standardized JSON credential at /.well-known/agent-card.json. Machine-readable identity for any AI agent.

โญ

Reputation Registry

Track agent validation status and reputation scores on-chain. Build trust with verifiable interaction history.

๐Ÿ”

SIWE Authentication

Sign in with Ethereum โ€” one-click wallet connection via RainbowKit. No passwords, no emails, pure Web3.

๐Ÿ”—

Multi-Chain Ready

Deploy on 18+ EVM-compatible chains. Start on Base Chain for ultra-low fees, expand to Ethereum, Polygon, Arbitrum and more.

โšก

Base Chain (Layer 2)

Deployed on Coinbase's Base Chain for ultra-low gas costs (~$0.02 per registration) with full Ethereum security.

WHY AIONCHAIN

Build It Yourself vs.
Use Aionchain.io

Implementing ERC-8004 from scratch requires deep blockchain expertise, months of development, and ongoing maintenance. Or you can start in 2 minutes โ€” for free.

๐Ÿ› ๏ธ

Build It Yourself

Hard Way
  • โŒ
    Smart Contract Development
    Write, audit, and deploy ERC-8004 contracts yourself. Solidity expertise required.
  • โŒ
    Multi-Chain Deployment
    Deploy and maintain contracts on each chain separately. 18+ chains = 18+ deployments.
  • โŒ
    Frontend + Backend
    Build dashboard, wallet integration, SIWE auth, API endpoints from scratch.
  • โŒ
    Security Audit
    $15Kโ€“$50K+ for professional smart contract audit. Can't skip this.
  • โŒ
    Ongoing Maintenance
    Chain upgrades, RPC management, monitoring, bug fixes โ€” forever.
  • โŒ
    Timeline: 3โ€“6 Months
    Full-stack blockchain development with testing and deployment.
Total Cost: $50,000 โ€“ $200,000+
โšก

Use Aionchain.io

Smart Way
  • โœ…
    Instant Registration
    Register your AI agent in under 2 minutes. Connect wallet, fill form, done.
  • โœ…
    18+ Chains Included
    All EVM chains supported out of the box. No extra deployment needed.
  • โœ…
    Full Dashboard
    Beautiful management UI with analytics, AgentCard generation, and reputation tracking.
  • โœ…
    Battle-Tested Security
    Built on audited ERC-8004 standard. Backed by MetaMask, Google, Ethereum Foundation.
  • โœ…
    Zero Maintenance
    We handle upgrades, monitoring, RPC nodes, and infrastructure. You focus on your agent.
  • โœ…
    Start in 2 Minutes
    From zero to on-chain identity. No coding, no devops, no blockchain expertise needed.
Start Free โ€” $0 for First Agent
HOW IT WORKS

Three Steps to On-Chain Identity

Register your AI agent in under 2 minutes. Free on Base Chain.

1

Connect Wallet

Sign in with Ethereum (SIWE) via MetaMask, WalletConnect, or any EVM wallet. One click, zero friction.

โ†’
2

Register Agent

Enter your agent's domain and address. Sign the transaction to mint an ERC-721 Agent NFT on Base Chain.

โ†’
3

Get AgentCard

Your AgentCard JSON is auto-published at /.well-known/agent-card.json. Share your agent's verified identity.

DASHBOARD

Manage Your Agents
With Full Control

A powerful dashboard to register, monitor, and manage all your AI agent identities.

๐Ÿ”’ aionchain.io/dashboard
0x7a3F...8d2E
๐Ÿ“Š Dashboard
๐Ÿค– My Agents
โž• Register Agent
๐Ÿ“‹ AgentCards
โญ Reputation
โš™๏ธ Settings

Agent Dashboard

Total Agents
12
Active
10
Pending
2
Chain
Base
Agent DomainAgent IDChainStatusRegistered
assistant.acme.io#48291BaseActiveMar 12, 2026
trading-bot.defi.xyz#48302BaseActiveMar 11, 2026
support.widget.ai#48315BasePendingMar 14, 2026
analytics.data.io#48320BaseActiveMar 14, 2026
ERC-8004

Built on the
Industry Standard

ERC-8004 is the Ethereum standard for trustless AI agent identity. Backed by MetaMask, Google, Ethereum Foundation, and Coinbase. Deployed on 18+ EVM chains with 66,000+ agents already registered.

// ERC-8004 Agent Identity Registry contract AgentRegistry is ERC721 { function NewAgent( string memory AgentDomain, address AgentAddress ) external returns (uint256 agentId) { agentId = _nextId++; _mint(msg.sender, agentId); agents[agentId] = Agent(AgentDomain, AgentAddress); emit AgentRegistered(agentId, AgentDomain); } function ResolveByDomain( string memory domain ) external view returns (uint256) { return domainToId[domain]; } }
PRICING

Start Free,
Scale When Ready

Register your first AI Agent identity at zero cost. Upgrade as your fleet grows.

Free
$0
Perfect for getting started
  • 1 AgentID on Base Chain
  • Agent Dashboard
  • AgentCard Generation
  • Community Support
Pro
$9.9/mo
For growing agent fleets
  • 10 AgentIDs
  • Multi-chain Support
  • Analytics Dashboard
  • Priority Support
Business
$49/mo
For teams and companies
  • 100 AgentIDs
  • API Access
  • Custom Validation Rules
  • Dedicated Support
Enterprise
Custom
For large-scale deployments
  • Unlimited AgentIDs
  • Dedicated Infrastructure
  • SLA Guarantee
  • White-label Options

Register Your AI Agent
Identity Today

Free to start. Ready to scale. Join 66,000+ agents on-chain.