Start hereAI agents have money now.
Pick your door.
Agents pay for APIs, data, and content in USDC over open protocols — x402 and MPP — with no accounts and no invoices. We run 17 paid services on these rails and measure the whole ecosystem daily. Whatever brought you here, one of these four doors is yours.
I have a website or content
Charge agents for it — without writing code
AI agents already visit your site; right now they take everything for free. x402 Proxy puts a price on any URL you own: you set the amount, agents pay in USDC on Base automatically, you collect. No wallet knowledge, no code, self-serve.
I have an API or I build software
Make it machine-payable — then verify agents can actually pay it
In our August census of all 1,225 sellers in the x402 catalog, one in four couldn’t complete a sale. Start with the free scanner to see what agents see, then use the seller kits to wire x402 (and MPP dual-stack) properly the first time.
I’m watching this space
Follow the rails with measured numbers, not press releases
We operate 17 paid services and crawl the discovery ecosystem three times a day, so our data is first-hand: the Rail Pulse ticker updates daily, the census lands monthly, and The Brief sends only when something actually moves.
I want to build with people
The builder community is warming back up
Meetups, build nights, and a builders’ space are relaunching now that everyone’s back at their desks. Brief subscribers get the invite first — founding members ride free.
Not sure which door? Start with What is x402? — five minutes, no jargon — then come back.