Japan Corporate Number is answering right now. Last checked moments ago. 16 installs a week from npm. It exposes 46 tools. Last commit 29 Oct 2026.
japan-corporate-number — Japan's National Tax Agency (国税庁) corporate number register (法人番号公表サイト).…
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 20 October 2026. No other catalogue keeps this.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.
claude mcp add japan-corporate-number --transport http https://gateway.pipeworx.io/japan-corporate-number/mcp
https://gateway.pipeworx.io/japan-corporate-number/mcp
[mcp_servers.japan-corporate-number]
url = "https://gateway.pipeworx.io/japan-corporate-number/mcp"
{
"mcpServers": {
"japan-corporate-number": {
"url": "https://gateway.pipeworx.io/japan-corporate-number/mcp"
}
}
}
{
"servers": {
"japan-corporate-number": {
"type": "http",
"url": "https://gateway.pipeworx.io/japan-corporate-number/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
polymarket_arbitrage
polymarket_edge_tracker
polymarket_edges
polymarket_fill_risk
polymarket_kalshi_spread
ask_pipeworx
ask_pipeworx_beta
ask_pipeworx_grounded
company_facts
company_register_search
jp_company_search
archive_compare
archive_evidence
pipeworx_feedback
pipeworx_trending
recent_alerts
recent_changes
resolution_audit
resolution_diff
scan_competitor_ai_presence
scan_dependency
updown_divergence_rate
updown_venue_compare
bet_research
classify_row
compare_entities
jp_corporate_number
deep_research
discover_tools
entity_profile
forget
generate_llms_txt
kalshi_weather_edge
prediction_calibration
recall
release_calendar_markets
remember
research_row
resolve_entity
subscribe
list_subscriptions
suggest_questions
unsubscribe
validate_claim
ai_visibility_check
search_within
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://gateway.pipeworx.io/japan-corporate-number/mcp | streamable-http | answering | 139 ms | 0 min ago |
Search Japanese corporations and verify invoice numbers using official National Tax Agency data.
Japan public data: corporate numbers, registered support organizations, government bid notices.
British Virgin Islands company search by name, company number, incorporation date and agent.
Validates and normalizes Japanese corporate numbers and invoice registration numbers (format only).
EDINET — Japan's corporate-filings system (Financial Services Agency).
Japanese invoice/receipt OCR + tax registration-number (T-number) verification, via x402.
Which Japanese corporate numbers match this company name? gBizINFO (METI) relay with sources.
Japanese open-data MCP server: corporate-number validation, zengin bank codes, national holidays
Answers built from our own checks of this server.