Paywall Configuration
Base L2
Protected Route / Tool Endpoint
Path or MCP Tool URI
Micropayment Price (USDC / Call)
0.005 USDC
$0.0050
Settlement Network
L2 / L1 Web3 Rails
Base (USDC)
Solana (SPL)
Polygon (USDC)
Receiver Wallet Address
EVM (0x...)
Payment Quote TTL & Nonce Strategy
Replay Protection
Est. Monthly Revenue (50k calls/day)
$7,500.00 USDC
Live HTTP 402 Paywall Inspector
HTTP/1.1 402 Payment Required
x402 Standard v1.2
Content-Type: application/json; charset=utf-8
X-402-Price: 0.005
X-402-Currency: USDC
X-402-Network: base-mainnet
X-402-Address: 0x71C...DaF4
X-402-Nonce: a8b9f7c29e1041b3
X-402-Expires: 1723632300
X-402-Facilitator: https://pay.pixeloffice.eu/x402/settle
// Response Body (Agent machine-readable):
{
"error": "payment_required",
"message": "Autonomous agent micro-settlement required for this endpoint",
"payment_request": {
"amount_usdc": 0.005,
"recipient": "0x71C83644264419a515f5E2b70f03126f5869DaF4",
"network": "base"
}
}
Agent Settlement Simulation
1
Agent Request (Unauthenticated)
GET /api/v1/tools/search-mcp (Headers: None)
2
Server Response (HTTP 402)
Server returns quote: 0.005 USDC with signed nonce
3
Autonomous Agent Micropayment
Agent signs & broadcasts L2 transfer (Tx: pending...)
4
Settlement Verification & 200 OK
Server verifies receipt in 24ms & returns unblocked tool data