JPYC Supply by Chain
GET open-pay.jp/api/paid/usdc/jpyc/supply
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
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.
Resource: open-pay.jp/api/paid/usdc/jpyc/supply
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x52d4901142e2B5680027da5EB47C86CB02a3cA81
Payment methods: — · Last validation: 2026-09-14 10:06:09.942+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"chain": {
"enum": [
"polygon",
"kaia",
"avalanche",
"ethereum"
],
"type": "string",
"description": "Chain to query. Omit to query all supported chains. Supported values: polygon, kaia, avalanche, ethereum."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"schemaVersion",
"token",
"generatedAt",
"notice",
"termsUrl",
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"oneOf": [
{
"type": "object",
"required": [
"chain",
"chainId",
"contract",
"status",
"blockNumber",
"totalSupply",
"totalSupplyFormatted"
],
"properties": {
"chain": {
"enum": [
"polygon",
"kaia",
"avalanche",
"ethereum"
],
"type": "string"
},
"status": {
"type": "string",
"const": "ok"
},
"chainId": {
"type": "integer",
"minimum": 1
},
"contract": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"blockNumber": {
"type": "string",
"pattern": "^[0-9]+$"
},
"totalSupply": {
"type": "string",
"pattern": "^[0-9]+$",
"description": "Atomic JPYC amount with 18 decimals."
},
"totalSupplyFormatted": {
"type": "string",
"pattern": "^[0-9]+(\\.[0-9]+)?$"
}
},
"additionalProperties": false
},
{
"type": "object",
"required": [
"chain",
"chainId",
"contract",
"status",
"errorCode",
"retryable"
],
"properties": {
"chain": {
"enum": [
"polygon",
"kaia",
"avalanche",
"ethereum"
],
"type": "string"
},
"status": {
"type": "string",
"const": "unavailable"
},
"chainId": {
"type": "integer",
"minimum": 1
},
"contract": {
"type": "string",
"pattern": "^0x[a-fA-F0-9]{40}$"
},
"errorCode": {
"enum": [
"rpc_unavailable",
"contract_read_failed"
],
"type": "string"
},
"retryable": {
"type": "boolean"
}
},
"additionalProperties": false
}
]
}
},
"token": {
"type": "object",
"required": [
"symbol",
"decimals"
],
"properties": {
"symbol": {
"type": "string",
"const": "JPYC"
},
"decimals": {
"type": "integer",
"const": 18
}
},
"additionalProperties": false
},
"notice": {
"type": "string",
"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."
},
"termsUrl": {
"type": "string",
"format": "uri"
},
"generatedAt": {
"type": "string",
"format": "date-time"
},
"schemaVersion": {
"type": "string",
"const": "2.2"
}
},
"additionalProperties": false
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x52d4901142e2B5680027da5EB47C86CB02a3cA81",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x52d4901142e2B5680027da5EB47C86CB02a3cA81",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "2000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.