Roundhouse

Japan T-Number Verify

Japanese qualified-invoice verification / 適格請求書・インボイス登録番号検証: validate a T+13 digit registration number against Japan's NTA registry and return registered, cancelled, or not-found status, corporate number, and dates. / T+13桁の適格請求書登録番号を国税庁データと照合し、登録・取消・未検出の状態、法人番号、日付を返します。

OtherLiveeip155:8453Exactvia cdp
https://api.jpverify.com/jp-invoice/verify
JapanInvoiceT-numberNtaTax
Calls · 30d
1↓ 42%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 23 snapshots so far.
$1.41
Verified settled volume
71 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-16 23:54Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xe4A4E5B226bE71e7b6eD523bc7a91089c770572F

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0xe4A4…0572F. The signed payment is good for 5 minutes.

Paid to
0xe4A4…0572F
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xe4A4E5B226bE71e7b6eD523bc7a91089c770572F",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "response_language": "both",
          "registration_number": "T1013301046627"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "name": "株式会社ABC",
          "entity": "corporation",
          "source": "Japan National Tax Agency Invoice System",
          "status": "registered",
          "address": "東京都千代田区千代田1-1",
          "verdict": "qualified",
          "data_as_of": "2026-07-31",
          "cancel_date": null,
          "format_valid": true,
          "record_found": true,
          "checksum_valid": true,
          "data_freshness": "monthly_snapshot",
          "registered_name": "株式会社ABC",
          "corporate_number": "1013301046627",
          "registration_date": "2023-10-01",
          "registration_number": "T1013301046627",
          "qualified_invoice_registered": true
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "registration_number"
              ],
              "properties": {
                "response_language": {
                  "enum": [
                    "ja",
                    "en",
                    "both"
                  ],
                  "type": "string",
                  "default": "both",
                  "description": "Response presentation language: ja, en, or both. / レスポンス表示言語: ja（日本語）、en（英語）、both（両方）。"
                },
                "registration_number": {
                  "type": "string",
                  "pattern": "^[Tt][0-9\\s\\-]{13,20}$",
                  "description": "T plus 13 digits; spaces, hyphens, and lowercase t are normalized. / Tに続く13桁の数字。空白・ハイフン・小文字tは正規化されます。"
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "name": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "type": "object",
              "entity": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "source": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "status": {
                "type": "string"
              },
              "address": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "verdict": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "data_as_of": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "cancel_date": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "expire_date": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "format_valid": {
                "type": [
                  "boolean",
                  "null"
                ]
              },
              "record_found": {
                "type": "boolean"
              },
              "checksum_valid": {
                "type": [
                  "boolean",
                  "null"
                ]
              },
              "data_freshness": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "name_en_display": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "registered_name": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "corporate_number": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "registration_date": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "address_en_display": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "registered_name_en": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "registration_number": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "qualified_invoice_registered": {
                "type": "boolean"
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-16 23:54Z
Last indexed by Roundhouse
2026-09-15 23:40Z
Last enriched (probe, favicon, geo)
2026-09-23 21:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 405
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 23 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Japan T-Number Verify and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Japan%20T-Number%20Verify'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.jpverify.com/jp-invoice/verify, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.