# OpenPay Japan Web3 Directory - USDC Payment Endpoint

> OpenPay Japan Web3 Directory - USDC Payment Endpoint is a paid API for AI agents from open-pay.jp, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-18).

Returns OpenPay merchant/directory information for Japan Web3 listings, accessible via micropayment of $0.02 USDC using the x402 payment protocol

## Facts

- Endpoint: GET https://open-pay.jp/api/paid/usdc/japan-web3-directory?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openpay-japan-web3-directory-usdc-payment-endpoint-56d93b76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iSivt6xAC5V5oUHzGq9lf

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-japan-web3-directory-usdc-payment-endpoint-56d93b76
```

Example prompt: Pull the OpenPay Japan Web3 merchant directory for me — I want to see which stores in Japan accept JPYC or USDC stablecoin payments via QR or mobile order.

## When to prefer this

Choose this endpoint when you need to discover Japan-based merchants that accept JPYC or USDC stablecoin payments, particularly those using OpenPay's infrastructure for QR payments, mobile ordering, or AI agent-compatible payments. Prefer this over generic business directories when the specific requirement is Web3/stablecoin payment compatibility in Japan.

## Known failure modes

- Payment not included or insufficient USDC (402 Payment Required)
- Invalid or malformed x402 payment header
- Network timeout accessing open-pay.jp
- Directory data temporarily unavailable (503)
- Stale or empty directory if no merchants are registered

## How this service works

Japan Web3 Directory, full export: sourced records on Japan's JPYC/USDC, exchange, wallet and AI-agent services — every row carries an official source URL and last-verified date.

## Output

Returns directory data about Japan-based merchants registered with OpenPay that accept JPYC and/or USDC stablecoin payments, including details about their payment capabilities (QR, mobile order, AI agent payment support) and associated business information within the Japan Web3 ecosystem.

## 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-japan-web3-directory-usdc-payment-endpoint-56d93b76/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)