Facilitator URL
One endpoint for every chain. Point your x402 client here.
https://x402.dexter.cash
Use this same URL for all supported chains: Solana, Base, Polygon, Avalanche, and more.
Optimism Mainnet
Full x402 v2 support for Optimism Mainnet. Settle payments on the foundation of the Superchain.
How it works on Optimism
Buyers pay on Optimism. Dexter verifies the x402 payment, signs the receipt, and settles to the seller on Optimism.
BuyerPay on Optimism
DexterVerify + settle
SellerReceive on Optimism
Capabilities
Everything you need to accept x402 payments on Optimism.
x402 v2 on Optimism
Full v2 support on Optimism Mainnet with chain-native receipts.
Superchain alignment
Positioned at the center of the emerging multi-chain OP ecosystem.
Public facilitator URL
One endpoint shared across every supported chain.
Gas-free for buyers
Dexter sponsors ETH fees, buyers only need USDC.
Integration & resources
Use the same facilitator endpoint everywhere.
Documentation
Follow the integration guide and migration notes for x402 v2.
Open DocsFacilitator dashboard
Live status, settlement metrics, and chain coverage in one view.
Open DashboardOptimism quickstart
Drop this into your stack and start collecting payments.
Install
npm i @dexterai/x402Example
import { createX402Server } from '@dexterai/x402/server';
const server = createX402Server({
payTo: 'YourOptimismAddress',
network: 'eip155:10',
facilitatorUrl: 'https://x402.dexter.cash',
});
const requirements = await server.buildRequirements({
amountAtomic: '30000',
resourceUrl: '/api/paid-endpoint',
});
res.setHeader('PAYMENT-REQUIRED', server.encodeRequirements(requirements));
res.status(402).end();