Mart402 · mart402.com
Invoice field verification for AI agents
Arithmetic consistency of invoice fields, line-item totals, JP registration number check-digit + corporate-number existence observation (official NTA registry), accounting JSON. 0.015/call.
Input
Sample response
Published by the provider. Your run returns a fresh response.
response7 keys
accounting_json10 keys
currency"JPY"
customernull
due_datenull
invoice_nonull
issue_datenull
reg_no"T1180301018771"
subtotal100000
tax10000
total110000
vendor"トヨタ自動車株式会社"
checks2 items
0{ check, detail, pass }3 keys
1{ check, detail, pass }3 keys
corp_registry7 keys
address_pref_city"愛知県豊田市"
corporate_number"1180301018771"
name"トヨタ自動車株式会社"
note"existence of the underlying corporate number in the Japan NTA corporate-number registry; NOT the qualified-invoice-issuer registration status. Sole proprietors are not in this registry, so not_found does not mean the number is invalid."
source"Japan NTA corporate number registry (houjin-bangou.nta.go.jp)"
status"found"
vendor_name_match"exact"
note"SAMPLE RESPONSE (recorded from a real production run). Served free at /samples/{product} so you can see the exact response shape before paying. No payment was taken."
oktrue
sampletrue
verifiedtrue
responseobject, 7 keysYour agent can do this on its own
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Track record
- Paid calls, last 30 days
- 6
- Buyers, last 30 days
- 2
- Last paid call
Reported by the x402 directory.