Japan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Ja
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.
10000 (raw units)
price
3
calls / 30d
3
unique payers
2026-09-04
updated
Provider
open-pay.jp · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x52d4901142e2B5680027da5EB47C86CB02a3cA81",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"changedSince": "2026-08-01"
},
"type": "http"
},
"output": {
"example": {
"changes": [
{
"assets": [
"USDC"
],
"chains": [
"base"
],
"changeCategory": "service_launch",
"changeType": "added",
"date": "2026-08-10",
"diffs": [
{
"currentValue": "commercial",
"field": "status",
"previousValue": null
}
],
"provider": "DG Stablecoin Payment Service",
"sourceUrl": "https://www.garage.co.jp/pr/release/20260810/",
"summary": "Digital Garage started commercial rollout of DG Stablecoin Payment Service (API-based merchant integration; initially USDC on Base, first offered to JCB and DGFT).",
"summaryJa": "デジタルガレージが DG Stablecoin Payment Service の商用展開を開始 (API 接続の加盟店向け・当初は Base 上の USDC・JCB/DGFT へ先行提供)。"
}
],
"generatedAt": "2026-08-27T02:00:00.000Z",
"hasMore": false,
"licenseNotice": "Events summarize what official sources state; they are not availability guarantees or endorsements. Source rights remain with their owners.",
"mode": "delta",
"nextChangedSince": "2026-08-27",
"notice": {
"code": "sourced-facts-only",
"detail": "Events summarize official announcements about stablecoin payment services in Japan; verify with each sourceUrl before relying on a change.",
"termsUrl": "https://open-pay.jp/en/terms"
},
"providers": [
{
"announcedAt": "2026-08-10",
"assets": [
"USDC"
],
"chains": [
"base"
],
"integrations": [
"api"
],
"lastEventDate": "2026-08-10",
"merchantFee": null,
"plannedPeriod": null,
"posIntegration": null,
"provider": "DG Stablecoin Payment Service",
"region": "Japan",
"settlementCurrency": null,
"slug": "dg-sps",
"sourceUrl": "https://www.garage.co.jp/pr/release/20260810/",
"stage": "commercial",
"startedAt": "2026-08-10",
"verifiedAt": "2026-08-27"
}
],
"query": {
"changedSince": "2026-08-01",
"limit": 200
},
"schemaVersion": "1.0",
"totalEvents": 7,
"totalProviders": 7
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"changedSince": {
"description": "Return only events on/after this date (YYYY-MM-DD). Set to your last run date. Omit for the full history.",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
},
"limit": {
"description": "1-200 (default 200). In delta mode the limit is rounded up to a date boundary: a single day is never split, so a day holding more events is returned whole. Continue with nextChangedSince while hasMore is true.",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://open-pay.jp/api/paid/usdc/stablecoin-payments" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://open-pay.jp/api/paid/usdc/stablecoin-payments");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://open-pay.jp/api/paid/usdc/stablecoin-payments")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/7559.json, and this resource appears in /discovery/resources and /discovery/search.