{
  "x402Version": 2,
  "id": 7563,
  "slug": "7563",
  "resource": "https://open-pay.jp/api/paid/usdc/jpyc/supply",
  "description": "Read the current contract-reported JPYC totalSupply on Polygon, Kaia, Avalanche or Ethereum, with the token contract address and the block number observed at request time. Use for periodic supply monitoring, cross-chain comparison, or verifying a current JPYC supply figure before citing it. Not for market price, reserve backing, circulating-supply analysis, or financial advice.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x52d4901142e2B5680027da5EB47C86CB02a3cA81",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "2000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "chain": "polygon"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "generatedAt": "2026-08-21T04:30:45.340Z",
            "items": [
              {
                "blockNumber": "92387745",
                "chain": "polygon",
                "chainId": 137,
                "contract": "0xE7C3D8C9a439feDe00D2600032D5dB0Be71C3c29",
                "status": "ok",
                "totalSupply": "1234567890000000000000000",
                "totalSupplyFormatted": "1234567.89"
              }
            ],
            "notice": "onchain-facts-only",
            "schemaVersion": "2.0",
            "termsUrl": "https://open-pay.jp/en/terms",
            "token": {
              "decimals": 18,
              "symbol": "JPYC"
            }
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "additionalProperties": false,
                "properties": {
                  "chain": {
                    "description": "Chain to query. Omit to query all supported chains. Supported values: polygon, kaia, avalanche, ethereum.",
                    "enum": [
                      "polygon",
                      "kaia",
                      "avalanche",
                      "ethereum"
                    ],
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "$schema": "https://json-schema.org/draft/2020-12/schema",
                "additionalProperties": false,
                "properties": {
                  "generatedAt": {
                    "format": "date-time",
                    "type": "string"
                  },
                  "items": {
                    "items": {
                      "oneOf": [
                        {
                          "additionalProperties": false,
                          "properties": {
                            "blockNumber": {
                              "pattern": "^[0-9]+$",
                              "type": "string"
                            },
                            "chain": {
                              "enum": [
                                "polygon",
                                "kaia",
                                "avalanche",
                                "ethereum"
                              ],
                              "type": "string"
                            },
                            "chainId": {
                              "minimum": 1,
                              "type": "integer"
                            },
                            "contract": {
                              "pattern": "^0x[a-fA-F0-9]{40}$",
                              "type": "string"
                            },
                            "status": {
                              "const": "ok",
                              "type": "string"
                            },
                            "totalSupply": {
                              "description": "Atomic JPYC amount with 18 decimals.",
                              "pattern": "^[0-9]+$",
                              "type": "string"
                            },
                            "totalSupplyFormatted": {
                              "pattern": "^[0-9]+(\\.[0-9]+)?$",
                              "type": "string"
                            }
                          },
                          "required": [
                            "chain",
                            "chainId",
                            "contract",
                            "status",
                            "blockNumber",
                            "totalSupply",
                            "totalSupplyFormatted"
                          ],
                          "type": "object"
                        },
                        {
                          "additionalProperties": false,
                          "properties": {
                            "chain": {
                              "enum": [
                                "polygon",
                                "kaia",
                                "avalanche",
                                "ethereum"
                              ],
                              "type": "string"
                            },
                            "chainId": {
                              "minimum": 1,
                              "type": "integer"
                            },
                            "contract": {
                              "pattern": "^0x[a-fA-F0-9]{40}$",
                              "type": "string"
                            },
                            "errorCode": {
                              "enum": [
                                "rpc_unavailable",
                                "contract_read_failed"
                              ],
                              "type": "string"
                            },
                            "retryable": {
                              "type": "boolean"
                            },
                            "status": {
                              "const": "unavailable",
                              "type": "string"
                            }
                          },
                          "required": [
                            "chain",
                            "chainId",
                            "contract",
                            "status",
                            "errorCode",
                            "retryable"
                          ],
                          "type": "object"
                        }
                      ]
                    },
                    "type": "array"
                  },
                  "notice": {
                    "const": "onchain-facts-only",
                    "description": "On-chain facts read from public RPC endpoints at request time. Informational only — not financial advice, not an offer, quote or solicitation. Full terms at termsUrl.",
                    "type": "string"
                  },
                  "schemaVersion": {
                    "const": "2.0",
                    "type": "string"
                  },
                  "termsUrl": {
                    "format": "uri",
                    "type": "string"
                  },
                  "token": {
                    "additionalProperties": false,
                    "properties": {
                      "decimals": {
                        "const": 18,
                        "type": "integer"
                      },
                      "symbol": {
                        "const": "JPYC",
                        "type": "string"
                      }
                    },
                    "required": [
                      "symbol",
                      "decimals"
                    ],
                    "type": "object"
                  }
                },
                "required": [
                  "schemaVersion",
                  "token",
                  "generatedAt",
                  "notice",
                  "termsUrl",
                  "items"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "open-pay.jp",
  "lastUpdated": "2026-08-23T01:47:52.297Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-08-23T01:47:52.019Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "open-pay.jp",
    "manifest_name": "open-pay.jp",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}