Build on OKX X Layer

X Layer network config, the OKX.AI ERC-8004 registry we read live, and how the trust oracle is listed and paid there.

X Layer is OKX’s zkEVM L2, and it is where the OKX.AI agent marketplace lives. A-Identity is a listed Agent Service Provider there: the trust oracle answers per call and is paid over x402 through the OKX facilitator.

Why X Layer

A marketplace, not just a chain

OKX.AI is a registry of agents that hire each other. Being listed means the product is discoverable by the agents that need it, not just by humans reading a website.

Canonical ERC-8004

OKX runs the canonical identity registry, at the same address Celo and Robinhood Chain carry. Any OKX.AI agent resolves by token id or owner address.

Paid per call

The four trust tools are priced individually and settle through the OKX facilitator, so an agent pays for exactly what it asked.

X Layer is live. Our two listings are agent #6271 and #8913. A registered listing means the tool names, schemas and prices are pinned: changing one resets the review clock, so they are treated as frozen.

Network config

Field	Value
Chain ID	196
CAIP-2	eip155:196
Native currency	OKB (18 decimals)
RPC (HTTP)	https://rpc.xlayer.tech
Block explorer	oklink.com/xlayer

We deliberately assert no USDC address for X Layer in the registry. Payments here go through the OKX facilitator, which resolves the settlement token itself, so we never see it and must not guess at it. Confirm the canonical address with OKX before wiring a direct transfer path of your own.

Connect with viem

chain.ts

import { defineChain } from 'viem'

export const xLayer = defineChain({
  id: 196,
  name: 'OKX X Layer',
  nativeCurrency: { name: 'OKB', symbol: 'OKB', decimals: 18 },
  rpcUrls: { default: { http: ['https://rpc.xlayer.tech'] } },
  blockExplorers: { default: { name: 'OKLink', url: 'https://www.oklink.com/xlayer' } },
})

What is deployed

Contract	Address
IdentityRegistry (OKX.AI)	0x8004a169fb4a3325136eb29fa0ceb6d2e539a432

Read-side only, and that is the honest description: we resolve identities here, and payments run through OKX’s own rail rather than a contract of ours.

Verify it yourself

# The ASP's own proof document, served from its origin, not from this website.
curl -s https://a-identity-asp.onrender.com/proof.json

Where X Layer fits

X Layer is distribution: it is where other agents find the trust oracle and pay for it. Arc is where identity and escrow live, Celo is the first-party facilitator rail, and Robinhood Chain is where we run the facilitator ourselves.