# OpenPay USDC Store Listing API

> OpenPay USDC Store Listing API is a paid API for AI agents from open-pay.jp, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Retrieves a list of stores registered on the OpenPay payment infrastructure that accept USDC and JPYC stablecoin payments in Japan

## Facts

- Endpoint: GET https://open-pay.jp/api/paid/usdc/stores
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openpay-usdc-store-listing-api-82795079
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MBH0gZDDjaxT532VfDGZv

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability openpay-usdc-store-listing-api-82795079
```

Example prompt: Show me all the stores registered on OpenPay that accept USDC or JPYC stablecoin payments — I want to find somewhere to eat or shop where I can pay with crypto using QR code or mobile order.

## When to prefer this

Choose this endpoint when an AI agent or application needs to discover merchants in Japan that are integrated with the OpenPay stablecoin payment infrastructure, particularly when the use case involves JPYC or USDC payments, QR-based checkout, or mobile ordering. It is the right choice for building agent-driven purchasing flows, tourist crypto-payment apps, or developer integrations testing OpenPay merchant coverage.

## Known failure modes

- No stores returned if network is new or filters are too restrictive
- Payment of 0.04 USDC required via x402 protocol or request is rejected
- API may return empty list if no stores are currently active
- Network timeout or service unavailability given infrastructure is small/open-source
- Authentication/payment failure if USDC wallet is not properly configured

## How this service works

Where JPYC (Japan's yen-pegged stablecoin) is accepted: curated exchanges, DEXes, dApps and bridges as JSON, each with category, supported assets and an official URL.

## Output

Returns a list of merchant/store records registered on the OpenPay platform, including details about each store such as name, accepted currencies (JPYC, USDC), payment methods (QR, mobile order), and relevant merchant metadata needed for initiating payments or orders.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openpay-usdc-store-listing-api-82795079/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from open-pay.jp](https://www.zero.xyz/host/open-pay.jp/llms.txt)