Metric Metadata — Returns metadata for a single metric: its supported parameters and allow

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x1f81da453901D15296c1710af83e0Bc0371D39f1",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "path": "/addresses/count"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "descriptors": {
            "group": "Addresses",
            "name": "Number of Addresses",
            "tags": [
              "on-chain"
            ]
          },
          "parameters": {
            "a": [
              "BTC",
              "ETH"
            ],
            "f": [
              "csv",
              "json"
            ],
            "i": [
              "24h"
            ]
          },
          "path": "/addresses/count"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "a": {
                  "description": "Asset id, e.g. BTC, ETH",
                  "type": "string"
                },
                "c": {
                  "description": "Currency for values, e.g. native, usd",
                  "type": "string"
                },
                "e": {
                  "description": "Exchange name, e.g. binance, coinbase",
                  "type": "string"
                },
                "i": {
                  "description": "Time interval / resolution, e.g. 1h, 24h",
                  "type": "string"
                },
                "path": {
                  "description": "Metric path, e.g. /addresses/count",
                  "type": "string"
                }
              },
              "required": [
                "path"
              ],
              "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://x402.glassnode.com/v1/metadata/metric"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://x402.glassnode.com/v1/metadata/metric");
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.glassnode.com/v1/metadata/metric")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header