1. HTTP 402 Payment Required Response (Server to Bot)
HTTP/1.1 402 Payment Required
Content-Type: application/json
X-Paymeter-Price: $0.01 USD
X-Paymeter-Solana-USDC: 8X7sPxL...PaymeterWallet
X-Paymeter-Proxy-Gateway: https://api.pixeloffice.eu/proxy/paymeter
{
"error": "Payment Required",
"message": "AI agent micropayment required ($0.01/call). Attach Bearer token or Solana USDC signature.",
"paymeterStudioUrl": "https://pixeloffice.eu/showcase/paymeter-studio/"
}
2. HTTP Request Authorization Header (Bot to Server)
POST /api/a2a/v1/extract HTTP/1.1
Host: api.pixeloffice.eu
Authorization: Bearer px_paymeter_live_948192a01bf
X-Solana-Tx-Signature: 5K9aPx...USDC_Signature_Proof