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JP Local Pack API — Invoice Issuer Lookup by Name
x402
JP Local Pack API — Invoice Issuer Lookup by Name is a paid API for AI agents from jp-local-pack-api.kasanegi123.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Looks up Japan qualified invoice issuers by company name, returning T-number, registration status, and match reliability from NTA and gBizINFO registries.
Price / call$0.02
Success—
StatusUnknown
How this service works
Japan payroll / tax / social insurance / mynumber / corporate / invoice / holiday reference API for AI agents. x402 micropayments on Base. No API key.
Output
Returns a list of candidate companies matching the name query, each with: Japanese legal name, English name (if available), 13-digit T-number, houjin number, registration status (registered/not), match reliability score and label (high/medium/low), full registered address, registration date, and data source cache status. Includes attribution to upstream METI gBizINFO and NTA registries.
Example use cases
Vendor invoice eligibility verification
“We're about to pay an invoice from a new Japanese supplier called Mitsubishi Electric. Can you quickly verify they're registered as a qualified invoice issuer and grab their T-number so we know the invoice is legit?”
Bulk supplier onboarding compliance
“I'm setting up our new supplier database for Japan operations. Can you look up each of these company names and tell me which ones are registered qualified invoice issuers? I need their T-numbers and registration statuses to flag any compliance issues upfront.”
Tax audit readiness check
“Our accounting team needs to audit all invoices we received from Japanese vendors last quarter. Can you verify a few key suppliers like Sony and Panasonic to confirm they were actually registered qualified invoice issuers at the time, and pull their houjin numbers and registration dates?”
Technical details
Endpoint
GEThttps://jp-local-pack-api.kasanegi123.workers.dev/api/invoice/issuer-by-nameWhen to prefer
Use this endpoint when you need to verify a Japanese company's qualified invoice issuer status by name — especially for accounts payable, tax compliance, or supplier onboarding workflows in Japan. Prefer this over manual NTA registry lookups when automating invoice validation at scale. Best when you have a supplier name but not yet their T-number or houjin number.
Side effects
- Ambiguous company name returns multiple low-reliability candidates requiring manual review
- Company not found in gBizINFO returns empty candidates list
- NTA registry cache miss results in unverified lower candidates with registration_error
- Unpaid request (no X-PAYMENT header) returns 402 shape preview with placeholder zeros instead of real data
- Non-Japanese company names or romanized names may fail to match Japanese registry entries
Output
Schema · Response
{
"type": "json",
"example": {
"_role": "shape_preview_echoes_query_for_paid_response",
"count": 0,
"query": {
"name": "<supplier keyword>",
"limit": 5
},
"candidates": [
{
"name": "<paid response returns Japanese legal name matching the requested name>",
"active": true,
"name_en": "<English name if registered>",
"t_number": "T<13-digit verified in paid response>",
"match_reason": "<human-readable explanation of the score>",
"houjin_number": "<13-digit corresponding hojin_bango>",
"registered_at": "<YYYY-MM-DD>",
"location_address": "<full address>",
"match_reliability": 0,
"registration_name": "<NTA registered name>",
"registration_status": "registered",
"registration_address": "<NTA registered address>",
"registration_verified": true,
"match_reliability_label": "<high|medium|low>",
"registration_cache_status": "<registry_hit|registry_not_found|webapi_cache_hit|webapi_cache_miss|webapi_uncached>",
"registration_source_last_update_date": "<YYYY-MM-DD>"
}
],
"attribution": "Upstreams: METI gBizINFO (https://info.gbiz.go.jp) for name -> houjin_number; NTA qualified invoice issuer public download registry for registration status.",
"_sample_note": "Unpaid 402 shape preview echoes the requested name + limit; paid 200 queries gBizINFO and the NTA registry, then returns t_number candidates with registration_status and match_reliability.",
"_shape_preview_note": "Numeric fields in this unpaid 402 shape preview are 0 placeholders. Real values require X-PAYMENT on production.",
"_coverage_limitation": "Paid response returns candidate-level NTA status evidence. The top candidate is verified against the NTA public download registry when available; lower candidates may be unverified and include registration_error. Remaining limitation: name-search uses gBizINFO keyword resolution, so ambiguous supplier names still need candidate review."
},
"mimeType": "application/json"
}Tags
x402
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