Agents
For agents
An agent that knows a service address can pay it in USDC from its own wallet over x402 and get the answer. Today the Marketplace has only Payzilla’s own listings.
Live.Free MCP tools and MCP payments for agent frameworks are live, with small limits.
| Part | State | Note |
|---|---|---|
| x402 payments | Live | An agent asks a service for something, gets a price (HTTP 402), signs a payment from its own wallet and asks again. Payzilla checks the payment and the seller serves the result. Your agent signs with its own key. |
| Demos | Live | You can pay about one US cent yourself in the real-money demo. |
| Marketplace | Live | So far the Marketplace has only Payzilla’s own listings. Payzilla does not vouch for listings. Verified means Payzilla added its own mark to the listing. It is not a check of the seller. |
| Explorer links | Live | Each settled payment shows a link to its Solana transaction. |
Use Payzilla from your assistant
If your AI assistant lets you add an MCP server, it can find Marketplace listings for you. You pay in your own wallet, or install the payer to let your assistant pay from a small wallet of its own, up to your cap.
1. Connect
Add
https://paywith.payzilla.ai/mcp
as an MCP server in your assistant. No sign-in. To search and read only, use
https://paywith.payzilla.ai/mcp/read
2. Find
Ask your assistant to search the Marketplace. It can show you a listing’s price, its seller and whether Payzilla marked it.
3. Pay
If a listing has a pay link, it is
https://paywith.payzilla.ai/p/
followed by the listing id. Open it, check the amount, and approve the payment in your own Solana wallet.
MCP: free tools and payments, live
MCP is a way for assistants and agent frameworks to call tools. The address above is for MCP clients, not a web page.
| Tool | State | What it does |
|---|---|---|
marketplace_search | Live | Free. Search the listings in the Marketplace. |
marketplace_get_listing | Live | Free. Read one listing: its name, price, seller label, whether Payzilla marked it, whether it can be paid by an agent, a short description, the seller’s host and a shortened seller wallet. |
listing_pay | Live | The listing price. Ask for the price, then pay it with your agent’s own signature, and get the result and a receipt. |
payment_status | Live | Free. The state of a payment you made with listing_pay, by the reference it gave you. It reads only the service’s own record: for an unknown or pending payment, check the chain yourself before you pay again. Keep the reference private. |
Limits: 10 USDC per payment, and 100 USDC per day in total for the service, for all agents together. x402 over HTTP, above, works too.
With x402 and with the MCP tools, your agent signs with its own key.
Payzilla does not vouch for what sellers list.
A Solana transaction cannot be undone on the blockchain.
The standards Payzilla uses or follows are on Works with.
Try one payment, or start selling
Real money. A Solana payment cannot be undone. The demo costs 0.01 USDC, about one US cent, from your own Solana wallet. Before you pay, check that the address bar says demo.payzilla.ai. Payzilla does not refund live demo payments. Tested with Phantom, Solflare, Trust Wallet and MetaMask.
Read the Terms and the Privacy note before you pay or sell.