Agent Bazaarby Saylor Innovations
Menu
ExploreMCPx402InsightsPublishGuidesDocs Connect an Agent GitHub
Beauty & Personal Care · x402 · early usage

JPYC transfer metrics computed hourly from finalized Polygon blocks: event count, uniqu…

JPYC transfer metrics computed hourly from finalized Polygon blocks: event count, unique senders and receivers, volume, median and top receivers. Covers approximately 24 hours ending at the newest finalized hourly bucket; exact block and time range are in the…

by open-pay.jp · discovered, not yet claimed by its owner · updated 2026-10-11

30d calls5
30d payers3
MethodGET
Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

JPYC transfer metrics computed hourly from finalized Polygon blocks: event count, unique senders and receivers, volume, median and top receivers. Covers approximately 24 hours ending at the newest finalized hourly bucket; exact block and time range are in the response. Use for current JPYC usage metrics; not for wallet balances, price, news, supply or financial advice.

Tags: jpyc · network-activity · token-transfers · polygon · onchain-data · bazaar

Call contract

Method
GET
Input
query parameters
Output
json
Last paid call
2026-10-11
Input example from Bazaar metadata
{
  "chain": "polygon",
  "window": "24h"
}
Output example
{
  "chain": "polygon",
  "chainId": 137,
  "contract": "0xE7C3D8C9a439feDe00D2600032D5dB0Be71C3c29",
  "definitions": {
    "countUnit": "events",
    "eligible": "positive-value transfers with distinct sender and receiver, excluding the zero address",
    "median": "floored atomic average for even counts"
  },
  "expiresAt": "2026-09-08T06:59:58.000Z",
  "fromBlock": "92343600",
  "fromTimestamp": "2026-09-07T03:00:00.000Z",
  "generatedAt": "2026-09-08T03:20:00.000Z",
  "medianTransfer": "1000000000000000000",
  "medianTransferFormatted": "1",
  "notice": "onchain-facts-only",
  "observedAt": "2026-09-08T02:59:58.000Z",
  "schemaVersion": "2.2",
  "termsUrl": "https://open-pay.jp/en/terms",
  "toBlock": "92386799",
  "toTimestamp": "2026-09-08T02:59:58.000Z",
  "token": {
    "decimals": 18,
    "symbol": "JPYC"
  },
  "topReceivers": [
    {
      "address": "0x52d4901142e2b5680027da5eb47c86cb02a3ca81",
      "count": 1,
      "volume": "1000000000000000000",
      "volumeFormatted": "1"
    }
  ],
  "transferCount": 1,
  "uniqueReceivers": 1,
  "uniqueSenders": 1,
  "volume": "1000000000000000000",
  "volumeFormatted": "1",
  "window": "24h"
}

Use with an agent

  1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
  2. Inspect. Fetch /resources/29032.json for the price and payment options.
  3. Pay. Call GET https://open-pay.jp/api/paid/usdc/jpyc/activity. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
  4. Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, eip155:5042, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price
$0.01 / request
Protocol
x402 v2
Auth
No account or API key. Pay per request.
Networks
Base, eip155:5042
Demand
5 calls · 3 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

SchemeNetworkAssetAmountPay toTimeout
exactBase
eip155:8453		USDC$0.010x52d4901142e2B5680027da5EB47C86CB02a3cA81300s
exacteip155:5042
eip155:5042		0x3600000000000000000000000000000000000000100000x52d4901142e2B5680027da5EB47C86CB02a3cA81604900s
accepts[] (raw JSON)
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x52d4901142e2B5680027da5EB47C86CB02a3cA81",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:5042",
    "payTo": "0x52d4901142e2B5680027da5EB47C86CB02a3cA81",
    "asset": "0x3600000000000000000000000000000000000000",
    "amount": "10000",
    "maxTimeoutSeconds": 604900
  }
]

Schemas

Output schema (JSON Schema)
{
  "properties": {
    "example": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "additionalProperties": false,
      "properties": {
        "chain": {
          "const": "polygon",
          "type": "string"
        },
        "chainId": {
          "const": 137,
          "type": "integer"
        },
        "contract": {
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "type": "string"
        },
        "definitions": {
          "additionalProperties": false,
          "properties": {
            "countUnit": {
              "const": "events",
              "type": "string"
            },
            "eligible": {
              "const": "positive-value transfers with distinct sender and receiver, excluding the zero address",
              "type": "string"
            },
            "median": {
              "const": "floored atomic average for even counts",
              "type": "string"
            }
          },
          "required": [
            "eligible",
            "countUnit",
            "median"
          ],
          "type": "object"
        },
        "expiresAt": {
          "format": "date-time",
          "type": "string"
        },
        "fromBlock": {
          "pattern": "^[0-9]+$",
          "type": "string"
        },
        "fromTimestamp": {
          "format": "date-time",
          "type": "string"
        },
        "generatedAt": {
          "format": "date-time",
          "type": "string"
        },
        "medianTransfer": {
          "pattern": "^[0-9]+$",
          "type": "string"
        },
        "medianTransferFormatted": {
          "pattern": "^[0-9]+(\\.[0-9]+)?$",
          "type": "string"
        },
        "notice": {
          "const": "onchain-facts-only",
          "description": "On-chain facts computed hourly from finalized Polygon blocks. Informational only; not financial advice. Full terms at termsUrl.",
          "type": "string"
        },
        "observedAt": {
          "format": "date-time",
          "type": "string"
        },
        "schemaVersion": {
          "const": "2.2",
          "type": "string"
        },
        "termsUrl": {
          "format": "uri",
          "type": "string"
        },
        "toBlock": {
          "pattern": "^[0-9]+$",
          "type": "string"
        },
        "toTimestamp": {
          "format": "date-time",
          "type": "string"
        },
        "token": {
          "additionalProperties": false,
          "properties": {
            "decimals": {
              "const": 18,
              "type": "integer"
            },
            "symbol": {
              "const": "JPYC",
              "type": "string"
            }
          },
          "required": [
            "symbol",
            "decimals"
          ],
          "type": "object"
        },
        "topReceivers": {
          "items": {
            "additionalProperties": false,
            "properties": {
              "address": {
                "pattern": "^0x[a-f0-9]{40}$",
                "type": "string"
              },
              "count": {
                "minimum": 1,
                "type": "integer"
              },
              "volume": {
                "pattern": "^[0-9]+$",
                "type": "string"
              },
              "volumeFormatted": {
                "pattern": "^[0-9]+(\\.[0-9]+)?$",
                "type": "string"
              }
            },
            "required": [
              "address",
              "count",
              "volume",
              "volumeFormatted"
            ],
            "type": "object"
          },
          "maxItems": 5,
          "type": "array"
        },
        "transferCount": {
          "minimum": 0,
          "type": "integer"
        },
        "uniqueReceivers": {
          "minimum": 0,
          "type": "integer"
        },
        "uniqueSenders": {
          "minimum": 0,
          "type": "integer"
        },
        "volume": {
          "pattern": "^[0-9]+$",
          "type": "string"
        },
        "volumeFormatted": {
          "pattern": "^[0-9]+(\\.[0-9]+)?$",
          "type": "string"
        },
        "window": {
          "const": "24h",
          "type": "string"
        }
      },
      "required": [
        "schemaVersion",
        "token",
        "generatedAt",
        "notice",
        "termsUrl",
        "chain",
        "chainId",
        "contract",
        "window",
        "fromBlock",
        "toBlock",
        "fromTimestamp",
        "toTimestamp",
        "transferCount",
        "uniqueSenders",
        "uniqueReceivers",
        "volume",
        "volumeFormatted",
        "medianTransfer",
        "medianTransferFormatted",
        "topReceivers",
        "definitions",
        "observedAt",
        "expiresAt"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}
Example shape — generated from the schema, not a captured live response
{
  "example": {
    "chain": "string",
    "chainId": 0,
    "contract": "string",
    "definitions": {
      "countUnit": "string",
      "eligible": "string",
      "median": "string"
    },
    "expiresAt": "2026-01-01T00:00:00Z",
    "fromBlock": "string",
    "fromTimestamp": "2026-01-01T00:00:00Z",
    "generatedAt": "2026-01-01T00:00:00Z",
    "medianTransfer": "string",
    "medianTransferFormatted": "string",
    "notice": "string",
    "observedAt": "2026-01-01T00:00:00Z",
    "schemaVersion": "string",
    "termsUrl": "https://example.com",
    "toBlock": "string",
    "toTimestamp": "2026-01-01T00:00:00Z",
    "token": {
      "decimals": 0,
      "symbol": "string"
    },
    "topReceivers": [
      {
        "address": "string",
        "count": 0,
        "volume": "string",
        "volumeFormatted": "string"
      }
    ],
    "transferCount": 0,
    "uniqueReceivers": 0,
    "uniqueSenders": 0,
    "volume": "string",
    "volumeFormatted": "string",
    "window": "string"
  },
  "type": "string"
}

Examples

curl
curl -X GET 'https://open-pay.jp/api/paid/usdc/jpyc/activity'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE
JavaScript
const res = await fetch("https://open-pay.jp/api/paid/usdc/jpyc/activity", {
  "method": "GET"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}
Python
import httpx
res = httpx.request("GET", "https://open-pay.jp/api/paid/usdc/jpyc/activity")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider
open-pay.jp
Endpoint
https://open-pay.jp/api/paid/usdc/jpyc/activity
Machine-readable
/resources/29032.json