OpenPay
GET https://open-pay.jp/api/paid/usdc/jpyc/balance
Listed in x402 List · Data: x402-list.com (CC BY 4.0)
Read the current on-chain JPYC balance of any EVM address on one or all supported chains (Polygon, Kaia, Avalanche, Ethereum), with the token contract and the block number observed at request time. Use before or after a payment, for treasury checks, wallet monitoring, and payment reconciliation. The result does not prove wallet ownership and is not a transaction-finality certificate.
Other endpoints from open-pay.jp
The same service's other paid functions that Hagglyai tracks, each with its own price. Functions outside Hagglyai's categories are not listed.
| Endpoint | Category | Price per call |
|---|---|---|
| GET /api/paid/usdc/jpyc/supply | On-chain data | $0.002 |
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X GET "https://open-pay.jp/api/paid/usdc/jpyc/balance"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-14 19:30 | Valid 402 | 402 | 360 ms | $0.002 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves