What is Superspice?

Superspice turns AI-agent traffic into revenue. You put an API, a dataset, a tool, or your website behind Superspice; AI agents discover it, pay per use in digital dollars (USDC), and get served — in about a second, with the money settling directly to your own wallet.

It runs on x402, the open payment standard created by Coinbase and adopted across the industry, and has been live on Base mainnet with real settled money since June 2026.

The loop

Every paid request follows the same four steps:

1. 402 — an agent requests your endpoint and receives an HTTP 402 Payment Required response carrying the exact terms: price, currency, and where to pay.
2. Pay — the agent’s wallet signs a USDC payment and retries the request with the payment attached. No account, no API key, no card, no invoice.
3. Served — Superspice verifies the payment and forwards the request to your origin. Your response streams back to the agent.
4. Settled — the money settles on-chain only after your response is delivered, and splits in the same breath: your full list price to your wallet, the agent-paid fee to Superspice. An agent never pays for a failed call, and you’re never left serving a freeloader — payment is verified before your servers answer.

Who it’s for

• API and data owners — charge agents per call with zero code changes. Point Superspice at your API’s base URL, set a price, share the gateway URL. → Quickstart: sell your API
• Site and content owners — AI crawlers already consume your site for free; blocking them earns nothing. Put your own domain in front of the choice: signpost them to a paid catalog, or toll them per page. Human visitors are never touched. → Quickstart: charge AI crawlers
• Agent builders — every Superspice endpoint is payable with a stock x402 client, no signup. → Paying for a call

What makes it different

• Non-custodial by construction. Every seller gets their own on-chain splitter contract; there is no balance held with Superspice, no payout schedule, and no ability for anyone — including us — to hold, freeze, or redirect your funds. → Payouts
• Buyer-pays economics. You keep 100% of your list price; the platform fee is paid by the agent on top. Free to use: no setup cost, no subscription, no monthly minimum. → Fees & limits
• Delivery-gated settlement. Payment settles only after the response is delivered — the buyer-side half of the Superspice Guarantee. → FAQ
• A real pricing menu. Per-call, prepaid bundles, time passes, volume tiers, and free trials — edited live in the dashboard, no redeploys. → Pricing your endpoints

The name

Superspice = S.P.I.C.E. — Stablecoin Payments Infrastructure for the Compute Economy. “Super” as in supercharged.

Try it right now

The gateway publishes a live, machine-readable directory of every listed seller:

curl https://gw.superspice.xyz/llms.txt

And this is a real mainnet 402 challenge anyone can inspect:

curl -i https://gw.superspice.xyz/g/superspice-demo/api/data/price-feed

Ready to sell? Create an account and follow the quickstart — most sellers are live in about 15 minutes.