x402 Barter — accept an open trade

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x367F1b3D8Ca90D1e087481a9A40d585Bf3451a03",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "6aCEuwH3PYx99cEmRz45otfxk39uF7ewGhqmvxfXisSG",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "20000",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "category": "AI",
    "description": "x402 Barter — accept an open trade. Pay only the flat call fee; escrow your counter-good, no USDC charged for value.",
    "info": {
      "description": "Accept an open barter deal and escrow your side of the trade.",
      "input": {
        "bodyType": "json",
        "method": "POST",
        "schema": {
          "properties": {
            "partner_id": {
              "description": "Optional partner ID for revenue sharing",
              "type": "string"
            },
            "payment_header": {
              "description": "Base64-encoded EIP-712 x402 payment authorization",
              "type": "string"
            },
            "resource": {
              "description": "Resource URL being accessed",
              "type": "string"
            }
          },
          "required": [
            "payment_header"
          ],
          "type": "object"
        },
        "type": "http"
      },
      "inputSchema": {
        "properties": {
          "agent": {
            "type": "string"
          },
          "counterparty": {
            "type": "string"
          },
          "deal_id": {
            "type": "string"
          },
          "want_payload": {
            "description": "your side of the trade"
          }
        },
        "required": [
          "deal_id"
        ],
        "type": "object"
      },
      "name": "AgentPay Barter Escrow - Accept Deal",
      "output": {
        "example": {
          "data": {},
          "settlement_tx": "0x0000000000000000000000000000000000000000000000000000000000000000",
          "success": true
        },
        "schema": {
          "properties": {
            "data": {
              "description": "Response payload",
              "type": "object"
            },
            "settlement_tx": {
              "description": "On-chain settlement transaction hash",
              "type": "string"
            },
            "success": {
              "type": "boolean"
            }
          },
          "type": "object"
        }
      },
      "outputSchema": {
        "description": "JSON receipt for this action. Fields vary by outcome, so the shape is described rather than enumerated.",
        "type": "object"
      }
    },
    "name": "accept",
    "networks": [
      "Base"
    ],
    "provider": "AgentPay",
    "providerUrl": "https://x402-agent-pay.com",
    "schema": {
      "properties": {
        "data": {
          "description": "Response payload",
          "type": "object"
        },
        "settlement_tx": {
          "description": "On-chain settlement transaction hash",
          "type": "string"
        },
        "success": {
          "type": "boolean"
        }
      },
      "type": "object"
    },
    "tags": [
      "agentpay",
      "x402"
    ]
  }
}

curl "https://x402-agent-pay.com/x402/barter/accept"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://x402-agent-pay.com/x402/barter/accept");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://x402-agent-pay.com/x402/barter/accept")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header