JPYC transfer metrics computed hourly from finalized Polygon blocks
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.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://open-pay.jp/api/paid/usdc/jpyc/activity
| Category | Market data |
|---|---|
| Provider host | open-pay.jp |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"chain": "polygon",
"window": "24h"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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": "Polygon mainnet only.",
"enum": [
"polygon"
],
"type": "string"
},
"window": {
"default": "24h",
"description": "Approximately 24 hours in whole finalized hourly buckets.",
"enum": [
"24h"
],
"type": "string"
}
},
"required": [
"chain"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"chain": {
"const": "polygon",
"type": "string"
},
"chainId": {
"const": 137,
"type": "integer"
},
"contract": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"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":