Put Fizzl Gateway in front of your API. Agents that pay with x402 and agents that pay with MPP can then all buy from you, and every payment goes straight to your own wallet.
x402 agents (Coinbase AgentKit and most others) can't pay an MPP-only API, and MPP agents, nearly all paying on Tempo, can't pay an x402-only one. And many paid endpoints have a broken challenge, a wrong resource URL or a network no wallet can settle, so agents walk away without paying.
You get a gateway address for your API (or your own subdomain). Your server stays where it is.
A price per route, and your own receiving addresses on Base, Solana and Tempo.
The gateway asks for payment in every protocol, checks it, and forwards the paid request to your server with a secret header, so only paid calls reach you.
Payments go from the agent straight to your addresses. The gateway never holds your funds.
Every route passes x402 Doctor, the checker agents use before they pay.
Listed where agents look: the Coinbase x402 Bazaar, MPPScan and the MPP directory, with the discovery files they read.
On Base, the payment settles only after your server answers successfully. A failed call costs the agent nothing.
The payment layer behind the gateway already runs on Fizzl's own four services (x402 Doctor, Presign Guard, PlainText and Ichimoku Signal): they accept x402 on Base, Solana and the XRP Ledger (RLUSD), three of them also on Algorand, and MPP on Base and Tempo (presign-guard also with pay-as-you-go MPP sessions), and are listed in the Bazaar, the XRPL AI Hub, MPPScan and the MPP directory. The gateway puts that same layer in front of your API.
We're now looking for a few sellers for the pilot. During the pilot it costs you nothing; afterwards it becomes a simple monthly plan, and pilot sellers keep a discount.
Send the URL of your paid endpoint (or the API you'd like to charge for). We'll run a free Doctor check and tell you what it takes.