Submit an image URL into MemeStack's moderation review queue; accepted images are publishe

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xa06C42DAA258595Bc773A0bF032A5Ba55939781a",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "80000",
    "maxTimeoutSeconds": 600
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "description": "Submit an image URL into MemeStack's moderation review queue; accepted images are published in the public, AI-captioned gallery with attribution. 100 sats (USDC equivalent) per submission, never refunded on moderation rejection (the fee is the anti-spam mechanism). No account or API key: the x402 (USDC on Base) or L402 (Lightning) payment is the auth.",
        "inputSchema": {
          "properties": {
            "attribution": {
              "description": "Optional credit line for the original creator/source (shown to moderators, not published).",
              "maxLength": 200,
              "type": "string"
            },
            "caption": {
              "description": "Optional caption hint for the AI tagger (admin-visible, never published verbatim).",
              "maxLength": 200,
              "type": "string"
            },
            "image_url": {
              "description": "HTTPS image URL, or data:image/(jpeg|png|webp);base64,... URL. Max 8MB.",
              "type": "string"
            },
            "tags": {
              "description": "Optional tag hints (max 10).",
              "items": {
                "maxLength": 40,
                "type": "string"
              },
              "maxItems": 10,
              "type": "array"
            }
          },
          "required": [
            "image_url"
          ],
          "type": "object"
        },
        "toolName": "submit_image",
        "transport": "streamable-http",
        "type": "mcp"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "description": {
              "type": "string"
            },
            "inputSchema": {
              "type": "object"
            },
            "toolName": {
              "type": "string"
            },
            "transport": {
              "enum": [
                "streamable-http"
              ],
              "type": "string"
            },
            "type": {
              "const": "mcp",
              "type": "string"
            }
          },
          "required": [
            "type",
            "toolName",
            "inputSchema"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://mcp.memestack.ai/mcp#submit_image#submit_image"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://mcp.memestack.ai/mcp#submit_image#submit_image");
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://mcp.memestack.ai/mcp#submit_image#submit_image")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header