AMD Gateway
Turn any API into a paid endpoint.
Deploy a payment gateway in front of your API. Agents pay per request with x402 on Robinhood Chain, and you collect USDG.
How it works
Three steps to monetize your API
Point
Connect your API with its base URL and its credentials. Bearer tokens, API keys and custom headers all work.
Price
Set a per-request price for each endpoint in USDG. Flat rates per route, zero while you test, or prepaid sessions for stateful APIs.
Publish
Pick a slug and share the gateway URL. Agents discover your API, pay per request on their own, and you receive USDG at your payout address.
Features
Everything a paid endpoint needs
x402 on Robinhood Chain
A request without payment gets a 402 with the price in USDG. The gateway checks the receipt on chain before it forwards.
Dynamic pricing
Reprice any endpoint at any time and the next 402 quotes the new amount. Price each route on its own or set it to zero.
Zero code changes
No SDK and no middleware. The gateway stands in front of the API you already run and holds the upstream key.
OpenAPI import
Point at your OpenAPI spec and import every endpoint in one go. Set prices, toggle routes, and publish.
Prepaid sessions
For stateful APIs, agents deposit USDG into escrow and sign a voucher for the running total with each request. You settle the latest one on chain.
Agent-ready via MCP
Your agent can create services, add endpoints and set prices over the AMD MCP server. The dashboard is optional.
FAQ
No. AMD Gateway is a reverse proxy in front of your existing API. You give it the base URL and the credentials, and it collects the payment, verifies it on chain and forwards the authenticated request upstream. Your code stays exactly as it is.
x402 on Robinhood Chain. A request without a payment gets a 402 with the price, the asset (USDG) and the contract call to make. The agent pays, retries with the transaction hash, and the gateway checks the Paid event before it forwards.
For stateful APIs there are prepaid sessions: a deposit in escrow, a signed voucher per request, one settlement on chain.
Each endpoint gets its own flat price in USDG, for example $0.05 per call. Change it whenever you like and the next 402 quotes the new amount. Zero makes the route free while you test.
Test-mode services are always free to call and never appear in the catalog, so you can try the whole flow before going live.
On Robinhood Chain, in USDG, straight to the payout address you set. The contract never holds your money: a payment moves from the agent to you and the protocol fee to the treasury in one transaction.
Bearer tokens, API keys in a header or a query parameter, and custom headers. Or none for public APIs. The secret is encrypted in your browser to the gateway key before it goes on chain, and only the gateway can read it when it forwards a request.
Yes. Set a route's price to zero and the gateway forwards it without asking for a payment, so you can run a free tier next to paid routes, try the flow, or keep a public endpoint under the same gateway URL.
Put a price on your API today
Create your gateway in minutes. No code changes, no contracts to sign, no minimum volume.