open-pay.jp

https://open-pay.jp/api/paid/usdc/jpyc/supply

Shares a payout wallet with 13 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

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.

61
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Sep 6Sep 16Sep 25Oct 5

Response time

p50 71ms · p95 143ms
0ms 50ms 100ms Sep 6Sep 16Sep 25Oct 5
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
9/6/2026, 12:00:00 AM 100% 17 65ms
9/7/2026, 12:00:00 AM 100% 15 63ms
9/8/2026, 12:00:00 AM 100% 21 66ms
9/9/2026, 12:00:00 AM 100% 20 67ms
9/10/2026, 12:00:00 AM 100% 14 66ms
9/11/2026, 12:00:00 AM 100% 10 62ms
9/12/2026, 12:00:00 AM 100% 9 63ms
9/13/2026, 12:00:00 AM 100% 16 68ms
9/14/2026, 12:00:00 AM 100% 15 72ms
9/15/2026, 12:00:00 AM 100% 16 66ms
9/16/2026, 12:00:00 AM 100% 16 65ms
9/17/2026, 12:00:00 AM 100% 15 72ms
9/18/2026, 12:00:00 AM 100% 13 68ms
9/19/2026, 12:00:00 AM 100% 13 63ms
9/20/2026, 12:00:00 AM 100% 12 65ms
9/21/2026, 12:00:00 AM 100% 12 76ms
9/22/2026, 12:00:00 AM 100% 12 68ms
9/23/2026, 12:00:00 AM 100% 12 69ms
9/24/2026, 12:00:00 AM 100% 14 69ms
9/25/2026, 12:00:00 AM 100% 13 69ms
9/26/2026, 12:00:00 AM 100% 14 72ms
9/27/2026, 12:00:00 AM 100% 13 71ms
9/28/2026, 12:00:00 AM 100% 13 82ms
9/29/2026, 12:00:00 AM 100% 12 72ms
9/30/2026, 12:00:00 AM 100% 11 74ms
10/1/2026, 12:00:00 AM 100% 12 79ms
10/2/2026, 12:00:00 AM 100% 12 72ms
10/3/2026, 12:00:00 AM 100% 12 72ms
10/4/2026, 12:00:00 AM 100% 10 70ms
10/5/2026, 12:00:00 AM 100% 7 69ms
61
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
2

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
—
Domain registered
—
Hosting network
CLOUDFLARENET
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

20
payments (30d)
0.15
USD volume (30d)
7
paying wallets (30d)

Payments per day

last payment 10/5/2026
0 3 5 Sep 8Sep 27Sep 30Oct 5
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
9/8/2026 2 0.02 2
9/12/2026 1 0 1
9/14/2026 2 0.01 1
9/17/2026 1 0 1
9/27/2026 1 0.01 1
9/28/2026 4 0.03 2
9/29/2026 2 0.02 1
9/30/2026 1 0.01 1
10/2/2026 1 0.01 1
10/3/2026 1 0.01 1
10/4/2026 2 0.01 1
10/5/2026 2 0.02 1

This payout wallet is shared: figures cover all 14 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

https://open-pay.jp/api/paid/hello x402 endpoint https://open-pay.jp/api/paid/usdc/stablecoin-payments x402 endpoint https://aegis-ai.xyz/api/d2a/briefing-jpyc x402 endpoint https://aegis-ai.xyz/api/d2a/briefing x402 endpoint https://open-pay.jp/api/paid/usdc/jpyc/activity x402 endpoint https://open-pay.jp/api/paid/usdc/jpyc/services x402 endpoint https://open-pay.jp/api/paid/usdc/jpyc/transfers x402 endpoint https://open-pay.jp/api/paid/usdc/jpyc/balance x402 endpoint
Response schema 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "properties": {
    "generatedAt": {
      "format": "date-time",
      "type": "string"
    },
    "items": {
      "items": {
        "oneOf": [
          {
            "additionalProperties": false,
            "properties": {
              "blockNumber": {
                "pattern": "^[0-9]+$",
                "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": "2.2",
      "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"
}