Verge — Multichain HTTP 402 payment rails.

CA0xb73b18267d23087e3af1390edfeb8c4308921d59

$VERGEonPons

x402

x402 payment rails

for the agent| economy

Two lines to charge for anything.

Server middleware, AI SDK gate, or buyer agent — pick the SDK that fits your stack.

Two lines to monetize any endpoint.

Drop the middleware in front of any route. Set a price in USDG. Your endpoint now speaks x402.

✓Instant USDG settlement (~400ms)

✓Nonce-signed, replay-safe

✓Express middleware — any Node server

✓Self-host with BYO Robinhood RPC

See Docs →npm install ↗

server.ts

import express from "express";
import { paywall } from "@vergex402/express";

const app = express();

app.use("/api/premium", paywall({
  amount: 0.001          // USDG
  recipient: process.env.WALLET,
  network: "robinhood-mainnet",
}));

npmnpm install @vergex402/express

NPM PACKAGES

Four SDKs.
Every side of the payment.

Express middleware. Two lines to gate any route behind USDG payment.

$npm i @vergex402/express↗

v0.5.0

Server · Edge

@vergex402/hono

Hono adapter. Edge-compatible x402 paywall for Cloudflare Workers and Bun.

$npm i @vergex402/hono↗

v1.0.0

Agent · Buyer

@vergex402/fetch

Buyer SDK. payAndFetch() handles the full 402 challenge-sign-retry loop for agents.

$npm i @vergex402/fetch↗

NEWv1.0.0

AI routes · Agents

@vergex402/ai-sdk

Vercel AI SDK v7 middleware. wrapWith402() or createX402Gate() for any AI route.

$npm i @vergex402/ai-sdk↗

@vergex402/coreshared verifier — CAIP-2 networks, x402 v2 wire, facilitator calls

npm ↗

Agent Commerce

Agents and applications can charge for API access through a complete HTTP 402 loop: challenge, stablecoin settlement, proof retry, nonce validation, and replay protection. Wallet authorization is only needed for private portal tools.

✓

Issued nonce challenge

Every 402 response carries a one-time nonce, amount, recipient, token, network, and memo for the caller to satisfy.

✓

Proof retry

The caller retries with X-Pay-Tx and X-Pay-Nonce. Verge validates settlement before your handler runs.

✓

Replay protection

Successful transaction hashes are rejected on reuse. Bring Redis/Postgres stores when you run multiple workers.

✓

Agent or app ready

Agents can automate the whole loop, while apps and scripts can use the same paid endpoint contract.

MULTICHAIN PAYMENT RAILS

One gateway.
Seven ways to settle.

Choose the network that fits your users. Robinhood Chain settles in USDG; Ethereum, Base, Arbitrum, Polygon, Solana and Sui settle in USDC.

Explore the live rail catalog

FLAGSHIP

Robinhood Chain

EVM · 4663

Settlement assetUSDG

Ethereum

EVM · 1

Settlement assetUSDC

Base

EVM · 8453

Settlement assetUSDC

Arbitrum One

EVM · 42161

Settlement assetUSDC

Polygon

EVM · 137

Settlement assetUSDC

Solana

SVM

Settlement assetUSDC

Sui

Move

Settlement assetUSDC

Dashboard noteMerchant wallet balances and activity are currently read from Robinhood Chain. The other six rails are available through the Verge SDK/catalog; wallet analytics are not yet unified across chains.

OPEN ECOSYSTEM

Built to work across the stack.

Protocol, settlement, RPC and liquidity components — clearly separated from Verge’s own products.

x402Open payment protocol

AlchemyRPC infrastructure

CircleUSDC

UniswapOnchain liquidity

PonsVerge community

Building on Verge?

Browse the gateway, inspect the catalog, or start with an SDK.

Open developer workspace Read the docs

Built-in, per-transaction cashback

Every Transaction Earns

Automatic rewards

Every settled x402 payment earns cashback. No staking, no claims — it's built into the protocol.

Decaying rate

Early adopters earn more. Cashback rate decreases as total volume grows — get in early.

USDG payouts

Rewards are paid in USDG directly to your wallet. No token swaps, no lockups.

Cashback Rate Decay

Total settled requests

Two modes. Pick what fits.

Instant for real-time agent flows. Batched for high-volume, low-cost workloads.

<2ssettlement

Instant

✓USDG + ETH supported
✓Per-request settlement
✓0.5% facilitator fee
✓Cashback rewards eligible
✓Best for real-time AI agents

0%fee

Batched

✓USDG only
✓Aggregated settlement
✓No facilitator fee
✓Ideal for high-volume scraping
✓Cross-chain via LayerZero

Secure & Monetize Data

APIs, websites, datasets, MCP servers. If it returns a response, it can charge for it.

Monetize any API endpoint

Add paywall() middleware to any Express/Hono/Fastify route. Agents pay USDG per call. You earn instantly.

✓Zero vendor lock-in

✓Works with any HTTP client

✓Open source SDK

✓Self-hostable

server.ts

app.use("/api/data", paywall({
  amount: 0.005,         // $0.005 USDG per call
  recipient: WALLET,
  network: "Robinhood-mainnet",
}));

Built for the full stack. Server, agent, and AI.

Every side of agentic commerce — monetize your endpoints, pay others', split revenue, and let AI agents discover and pay automatically.

@vergex402/ai-sdk

NEW

Gate any Vercel AI SDK route with per-call USDG payment. wrapWith402() for agents, createX402Gate() for Next.js/Hono servers.

Revenue Splits

NEW

Distribute incoming USDG to co-founders, affiliates, or a treasury — atomically, per settlement, in basis points. Zero extra contracts.

MCP Server

Add vergesnowy.com/api/mcp as an MCP tool server in Claude, Cursor, or ChatGPT. Agents can inspect endpoints, create invoices, check reputation.

Non-Custodial

Your keys, your funds. Verge never touches your wallet. Payments go direct on-chain via USDG transfer — no escrow, no wrapping.

Live Settlement Feed

SSE stream at /api/feed broadcasts every settlement in real time. Build dashboards, bots, or public activity tickers on top of it.

Custom Domains

CNAME your own subdomain to the Verge tunnel. Serve hosted /x/<slug> endpoints at api.yoursite.com — your brand, our infra.

Developer Portal

Comprehensive tools for managing your x402 infrastructure

Real-time overview of your x402 endpoints

ILLUSTRATIVE PREVIEW · SAMPLE VALUES

✓Total revenue earned

✓Active endpoints count

✓Settlement status

✓Network health

$20.11

Revenue

$18.01

Txns

192

Endpoints

Avg fee

5K4f…3Ax$0.005settled2s ago

8Bb2…9Yz$0.010settled14s ago

3Cc7…1Wq$0.001pending28s ago

7Dd1…4Rp$0.050settled1m ago

ReceiptConfirmed

$0.005 USDG

→ 7Aa3…q9Px on Robinhood

Upgrades Like API Versions

Contract upgrades are as simple as changing an API endpoint. Update your payment address, keep everything else the same.

Current Version (v1.0)

// Your existing integration
paymentMiddleware
(
  "0xverge"
, {
  path: "/api/data"
  price: "$0.01"
});

New Version (v2.0)

// Just change the address
paymentMiddleware
(
  "0xNewAddress"
, {
  path: "/api/data"
  price: "$0.01"
});

No migration scripts. No downtime. No redeployment. Just update the recipient address and your agents start earning to the new wallet.

Built for $0.001 transactions.

Stripe takes 2.9% + $0.30. That breaks at <$1 per call. We don’t.

recommended

vergefacilitator

0.5%

per settled request

✓400ms USDG settlement on Robinhood
✓Nonce-signed challenges, replay-safe
✓Express, Hono, Fastify SDKs
✓Self-host with BYO Robinhood RPC

stripe

2.9%

+ $0.30 per transaction

—Bank rails, 1–3 day settle
—Min $0.50 makes <$1 calls a loss
—KYC / business account required
—No machine-to-machine auth

self-host

+ your infra costs

—Run @vergex402/express or @vergex402/hono yourself
—BYO Robinhood RPC (Alchemy / QuickNode)
—You verify on-chain, you settle
—Open source, MIT licensed

vs.	verge	stripe	L1/L2 native
Facilitator fee	0.5%	2.9% + $0.30	0% (you self-host)
Settlement	~400ms	1–3 days	~12s
Network fee	~$0.0001	—	$0.05–2.00
Min transaction	$0.001	$0.50	—
Currency	USDG, ETH	USD/EUR/…	USDG, ETH
Crypto-native	✓	—	✓
Self-host	✓	—	✓

OPEN BY DESIGN

One payment flow.
Built for more than one chain.

Use Verge’s SDK registry to select a settlement rail, then wire a paid endpoint into your application with the framework that already fits.

SUPPORTED RAILS

Robinhood Chain, Ethereum, Base, Arbitrum, Polygon, Solana and Sui are listed in the public SDK catalog.

05 + 02

VIRTUAL MACHINES

Five EVM networks plus Solana’s SVM and Sui’s Move-based network.

USDG · USDC

SETTLEMENT ASSETS

USDG on the Robinhood flagship rail; USDC across the six additional supported rails.

Express · Hono

PUBLISHED SDK MIDDLEWARE

Use the Verge packages in existing server apps, or integrate against the public HTTP gateway.

Recent settlements

Money moving through Verge.
Right now.

EndpointAmountNetworkWhen

crypto-price
0.0010USDGRobinhood2h ago
signals
0.0050USDGRobinhood2h ago
0xa92f…1de3
0.0010USDGbase2h ago
whale-alerts
0.0020USDGRobinhood2h ago
news
0.0010USDGRobinhood2h ago

Payer addresses truncated for privacy · amounts and endpoints are real-time

WALLET ACCOUNT · API ACCESS · PAYMENT RAILS

Open the Verge console

Browse docs and payment rails without signing in. Connect on Robinhood Chain only when you need private tools: endpoint publishing, API keys, receipts, and wallet-scoped settlement history.

Open console →Read docs

WalletConnect QR and browser wallets supported. The console stays readable before connect.

Default rail

Robinhood Chain 4663 · USDG

SDK switch

Set network: "base-mainnet" etc.

x402 use

Agents or apps pay per API call

Two lines to charge for anything.

Two lines to monetize any endpoint.

Four SDKs.Every side of the payment.

Agent Commerce

Issued nonce challenge

Proof retry

Replay protection

Agent or app ready

One gateway.Seven ways to settle.

Robinhood Chain

Ethereum

Base

Arbitrum One

Polygon

Solana

Sui

Built to work across the stack.

Built-in, per-transaction cashback

Every Transaction Earns

Automatic rewards

Decaying rate

USDG payouts

Cashback Rate Decay

Two modes. Pick what fits.

Instant

Batched

Secure & Monetize Data

Monetize any API endpoint

Built for the full stack. Server, agent, and AI.

@vergex402/ai-sdk

Revenue Splits

MCP Server

Non-Custodial

Live Settlement Feed

Custom Domains

Developer Portal

Real-time overview of your x402 endpoints

Upgrades Like API Versions

Built for $0.001 transactions.

One payment flow.Built for more than one chain.

Money moving through Verge.Right now.

Open the Verge console

Four SDKs.
Every side of the payment.

One gateway.
Seven ways to settle.

One payment flow.
Built for more than one chain.

Money moving through Verge.
Right now.