Japan Stablecoin Payment Monitor
open-pay.jp · 4 paid endpoints · listed 2026-10-27
Japan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Japan — new launches, pilots, partnerships, fee changes, supported assets and chains, and closures. Each event is dated, categorized and tied to an official source URL. Pass changedSince=YYYY-MM-DD (your last run date) to fetch only new events; an empty changes list explicitly means no change. Without changedSince you get the full dated history back to late 2025.
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | open-pay.jp/api/paid/hello | $0.01 | Base |
| GET | open-pay.jp/api/paid/usdc/jpyc/activity JPYC transfer metrics computed hourly from finalized Polygon blocks: event count, unique senders and receivers, volume, median and top receivers. Covers approxi | $0.01 | eip155:5042, Base |
| GET | open-pay.jp/api/paid/usdc/jpyc/services JPYC Service Monitor: weekly change feed for Japan-related JPYC and Web3 services. Each event is dated, typed (added / updated / removed / verified) and tied to | $0.01 | eip155:5042, Base |
| GET | open-pay.jp/api/paid/usdc/stablecoin-payments Japan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Japan — new launches, pilots, partnerships, fee changes, supported asset | $0.01 | eip155:5042, Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 11 h ago | open-pay.jp/api/paid/hello | 402 | 551 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-02 | 3 | $0.009 | |
| 2026-11-01 | 1 | $0.01 | |
| 2026-10-29 | 1 | $0.001 | |
| 2026-10-27 | 1 | $0.01 | |
| 2026-10-26 | 3 | $0.022 |
Is this your API?
<a href="https://logicnodes.io/observatory/p/open-pay.jp"><img src="https://logicnodes.io/observatory/badge/open-pay.jp.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/open-pay.jp