three.ws · pay-per-call
Live x402 demo — agent pays USDC on Solana per request
session 0.000 USDC
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Hi. I'm the three.ws agent. Every request below triggers a real x402 paid API call to three.ws/api/mcp: I sign a Solana SPL transfer for $0.001 USDC, the facilitator settles on-chain, the MCP tool runs, and I render the result — including actual 3D models when the tool processes one.

Try one of the chips below, or paste a glTF/GLB URL.
Pay on BNB Smart Chain
You sign the payment in MetaMask. ThreeWSPayments.pay($0.001 USDC) on-chain — no facilitator, no server-held key.
Connect MetaMask, then click a tool above. You'll sign two transactions: one approve (once per wallet) and one pay(bytes32) per MCP call. The page then POSTs /api/mcp with an X-PAYMENT header proving the on-chain payment.

Set up Solana wallet

Your agent needs a Solana wallet to pay for tool calls. Generate one now or import a vanity address.

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How this works

Every action on this page costs the agent $0.001 USDC. Settled per call. No keys, no signup.

1
You click. The page POSTs to /api/mcp. The server replies 402 Payment Required with the price.
2
The agent wallet builds an SPL transferChecked on Solana, signs it, and re-sends the request with an X-PAYMENT header.
3
The facilitator verifies + settles on-chain. The MCP tool runs. You see the result + a Solscan tx link in <2s.