RailOS is the merchant operating system for the agentic economy — accept Apple Pay, ACH, and USDC across four chains, then let AI agents discover and buy from you through the open x402 protocol.
Fiat and stablecoin settlement behind a single API and a single dashboard. Route to the cheapest rail automatically, or let the buyer choose.
Cards, Apple Pay, Google Pay, ACH and Cash App Pay with Stripe Connect underneath — KYC, payouts and tax handled.
Accept USDC and USDT across Base, Ethereum, Solana, Polygon and Arbitrum. Sub-2-second finality, auto-converted to your payout currency.
Hosted checkout, embedded components, payment links, QR codes, invoices and subscriptions — all from one balance.
RailOS is a full x402 facilitator — verify, negotiate, settle and refund agent payments over HTTP 402. Monetize any API or MCP server with a line of middleware.
Agents present payment proofs; RailOS validates scheme, asset and amount in milliseconds.
Funds move on the buyer's chain of choice and land in your unified balance.
Per-call usage metering turns any endpoint into a paid product.
// Monetize any route with x402 import { railos } from "@railos/x402"; app.get("/inference", railos.paywall({ price: "0.02", asset: "usdc", chains: ["base", "solana"] }), handler); // → 402 Payment Required // → agent pays, retries, gets 200 OK // → settled to your balance
Every merchant gets a merchant.ai.json — products, pricing, inventory and policies an agent can search, compare, buy and refund without ever loading your website.
Agents query your catalog in natural language.
Drop-in tools: search, compare, buy, refund.
Headless purchase with x402 settlement.
Reorders & watches across all merchants.
The same balance and catalog power your website, your mobile apps, and Tap to Pay at the register.
Drop-in, PCI-handled, themeable. Card and crypto side by side.
View checkout →The core rails are built, wired end-to-end, and test-covered. Open merchant onboarding is the last gate before general availability.
The rails are built and running. Merchant sign-up opens shortly — read the docs and build against the live x402 API today.