SFtunes catalog for agents: index of public mixtapes and public Top 10 lists, or one item

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xc122471a35f66366B2B3bfAfB7fee19827dAb637",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "pathParams": {},
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "count": 2,
          "detail": "GET /api/tapes?id=<uuid> for a tape, or ?id=top10-<handle> for a public profile's Top 10 + Side B",
          "tapes": [
            {
              "id": "<uuid>",
              "tapemaker": "@handle",
              "title": "tape title",
              "track_count": 10,
              "type": "tape"
            },
            {
              "id": "top10-handle",
              "tapemaker": "@handle",
              "title": "@handle's Top 10",
              "track_count": 10,
              "type": "top_ten"
            }
          ]
        },
        "type": "json"
      }
    },
    "routeTemplate": ":var1",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object"
            },
            "queryParams": {
              "properties": {
                "id": {
                  "description": "optional: a tape uuid, or top10-<handle> for a person's Top 10; omit for the full index",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

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

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