The machine economy · Robinhood Chain

monexprotocol.

Everything agents need to transact on Robinhood: two payment rails, on-chain identity, wallets, and a marketplace. Built on MPP and x402, settled in USDG and USDC.

Built on
MPP
x402
Robinhood Chain
USDGUSDG
MPP
x402
Robinhood Chain
USDGUSDG
MPP
x402
Robinhood Chain
USDGUSDG

Settled

12,858

on-chain settlements

Volume

493.15USDG

settled all-time

Merchants

703

live storefronts

Live status →
The rails

One gateway. Two payment rails.

Machine payments work the same everywhere: a server quotes its price with HTTP 402, the client answers with a signed stablecoin authorization, and the request completes. No accounts, no API keys, no invoices. Monex Protocol settles that loop on two rails.

MPP

Open standard

The Machine Payments Protocol: every offer is machine-readable, priced with HTTP 402, and paid with a signed stablecoin authorization. Any agent can discover a service and pay for it without a human in the loop, and every merchant created on Monex Protocol speaks the protocol from day one.

Read the spec at mpp.dev

x402

USDG · Robinhood Chain

The first x402 payment rail on Robinhood Chain. USDG has no native signed-transfer support, so we built the rail on Permit2: the client signs a witness transfer pinned to the merchant, our relayer broadcasts it, and USDG moves payer to merchant on-chain, gas-sponsored. The same facilitator also settles USDC on Base.

Use the x402 facilitator

Client side · pay any endpoint

import { createClient, getSettlement }
  from "@meshgateway/mpp-client";

const mpp = createClient({ signer, maxAmount: "0.05" });
const res = await mpp.fetch(
  "https://api.meshgateway.co/m/acme/v1/quote"
);
// 402 caught, Permit2 witness signed, retried
getSettlement(res); // { transaction, payer }

Server side · charge for yours

import { protect, robinhoodUSDG }
  from "@meshgateway/mpp-server";

export const GET = protect(
  robinhoodUSDG({
    price: "0.01", // USDG per request
    recipient: "0xYourWallet",
    relayerKey, rpcUrl,
  }),
  () => Response.json({ signal: "bullish" })
);
Live simulation

Watch a payment happen.

The whole loop takes one round trip and a signature. Hover to pause, or click a step.

Agent

holds only USDC

Monex Protocol

verifies, never holds funds

Merchant

paid to their wallet

The stack

Everything the machine economy needs.

MonexMarket

Live

The marketplace. 490+ machine-payable merchants across both rails, each with agent-ready payment snippets.

Browse merchants

MonexWallet

Live

The agent wallet as an MCP server: one npx command gives any agent a Robinhood Chain wallet that discovers monex merchants and pays per use in USDG.

Set up the wallet

MonexIdentity

Live

ERC-8004 identity and reputation on Robinhood Chain: one signature mints a portable agent ID that anyone can verify and score.

Browse the registry

MonexAgent

Beta

The chat interface to the machine economy: trade tokenized stocks and pay any monex merchant in one conversation.

Open MonexAgent

MonexScan

Live

The x402 settlement explorer: every payment settled by registered facilitators on Robinhood Chain, decoded straight from the chain.

Open MonexScan

MonexSDK

Open source

Client and server libraries for both rails: catch a 402, sign, and retry, or charge for your own endpoint in a few lines.

mpp-client / mpp-server
The flywheel

Every settlement feeds the network.

Each payment settled through the marketplace carries a small protocol fee, and that fee goes to $MONEX holders: not a treasury, not the company. Hold $MONEX and earn daily drops of tokenized stocks from protocol fees. More merchants attract more agent traffic, more traffic means more settlements, and every settlement makes holding more rewarding.

13epochs settled530.72USDG distributed to holders
  1. Builders list machine-payable merchants
  2. Agents pay per request in USDG and USDC
  3. A protocol fee is taken at settlement
  4. Fees flow to $MONEX holders, and the wheel turns again
Get started

Start your agentic commerce on Robinhood.

List your first machine-payable merchant in under a minute, or point your agent at the marketplace and make its first purchase.