39 Japanese locale APIs — wareki, NTA invoice, 法人番号, postal, romanization, kanji-kana (Workers AI).
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Scored across 24 tools
The tool set contains exact duplicates for 10 tools (e.g., company.fullProfile and torify_company.fullProfile). An agent cannot distinguish between them, leading to confusion and potential misselection. The purpose of having both namespaced and non-namespaced versions is unclear.
Naming is inconsistent: some tools use a dot-separated namespace (e.g., company.fullProfile), while others have a prefix (torify_company.fullProfile). Some tools lack the prefix (e.g., geo.geocode) while their duplicates have it (torify_geo.geocode). No consistent verb_noun pattern; naming conventions are mixed.
With 24 tools, the count is high, and half are duplicates. The effective unique tool count is 12, which is reasonable for the domain, but the duplication inflates the count unnecessarily, making the surface seem bloated and confusing.
The tool set covers key Japanese locale operations: corporate lookup, invoice validation/verification, geocoding, postal lookup, name romanization, kanji conversion, law search, and wareki conversion. However, there are no tools for updating or deleting data, which is expected since these are read-only or verification APIs. Minor gaps like missing station/landmark geocoding are noted but acceptable.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
company.fullProfileinvoice.companyProfiletorify_company.fullProfiletorify_invoice.companyProfiletorify_geo.geocodetorify_geo.reverseGeocodetorify_houjin.lookuptorify_invoice.validatetorify_invoice.verifytorify_kanji.toKanatorify_law.searchtorify_name.romanizetorify_postal.lookuptorify_wareki.convertkanji.toKana1 field changedOutput schema / properties / source / enumPrevious value: -[
- "kuroshiro",
- "passthrough"
-]New value: +[
+ "workers-ai",
+ "passthrough"
+]kanji.toKana1 field changedOutput schema / properties / source / enumPrevious value: -[
- "yahoo-jlp",
- "passthrough",
- "mock"
-]New value: +[
+ "kuroshiro",
+ "passthrough"
+]geo.geocode1 field changedInput schema / properties / q / descriptionPrevious value: -"住所文字列 (例: 東京駅)"New value: +"Japanese address string in address format (e.g. 東京都千代田区丸の内一丁目). Landmark/station names (e.g. 東京駅) are not supported. / 住所形式（例: 東京都千代田区丸の内一丁目）。ランドマーク名・駅名は非対応"name.romanize2 fields changedInput schema / properties / name / descriptionPrevious value: -"人名（カタカナまたはひらがな。姓名の間にスペースを入れると姓/名を分離して変換）"New value: +"Japanese name in katakana or hiragana. Kanji input is returned as-is (not converted). Add space between family and given name to split parts. / カタカナ必須・漢字入力時は変換されません。姓名の間にスペースを入れると姓/名を分離して変換"Input schema / properties / order / descriptionPrevious value: -"family-first: 姓名順（既定）、given-first: 名姓順"New value: +"family-first: family name first / 姓名順（既定）, given-first: given name first / 名姓順"postal.lookup11 fields changedOutput schema / properties / address1 / descriptionPrevious value: -"都道府県名"New value: +"Prefecture name / 都道府県名"Output schema / properties / address2 / descriptionPrevious value: -"市区町村名"New value: +"City/ward/town name / 市区町村名"Output schema / properties / address3 / descriptionPrevious value: -"町域名"New value: +"District/neighborhood name / 町域名"Output schema / properties / cityEnAdded value: +{
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "City/ward name in English (romanized) / 市区町村名（英語・ローマ字）"
+}Output schema / properties / kana1 / descriptionPrevious value: -"都道府県名（カタカナ）"New value: +"Prefecture name in katakana / 都道府県名（カタカナ）"Output schema / properties / kana2 / descriptionPrevious value: -"市区町村名（カタカナ）"New value: +"City/ward/town name in katakana / 市区町村名（カタカナ）"Output schema / properties / kana3 / descriptionPrevious value: -"町域名（カタカナ）"New value: +"District name in katakana / 町域名（カタカナ）"Output schema / properties / prefcode / descriptionPrevious value: -"都道府県コード"New value: +"Prefecture code / 都道府県コード"Output schema / properties / prefectureEnAdded value: +{
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "Prefecture name in English (e.g. Tokyo) / 都道府県名（英語）"
+}Output schema / properties / townEnAdded value: +{
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ],
+ "description": "District name in English (romanized) / 町域名（英語・ローマ字）"
+}Output schema / properties / zipcode / descriptionPrevious value: -"郵便番号（7桁）"New value: +"Postal code (7 digits) / 郵便番号（7桁）"wareki.convert6 fields changedInput schema / properties / date / descriptionPrevious value: -"西暦日付 YYYY-MM-DD（direction=g2w 時必須）"New value: +"Gregorian date YYYY-MM-DD, required when direction=g2w / 西暦日付（direction=g2w 時必須）"Input schema / properties / day / descriptionPrevious value: -"日（1〜31）"New value: +"Day 1-31 / 日（1〜31）"Input schema / properties / direction / descriptionPrevious value: -"g2w: 西暦→和暦、w2g: 和暦→西暦"New value: +"g2w: Gregorian to wareki / 西暦→和暦, w2g: wareki to Gregorian / 和暦→西暦"Input schema / properties / era / descriptionPrevious value: -"元号（令和/平成/昭和/大正/明治、または Reiwa/Heisei 等）"New value: +"Era name (Reiwa/Heisei/Showa/Taisho/Meiji or 令和/平成/昭和/大正/明治)"Input schema / properties / eraYear / descriptionPrevious value: -"元号年（1以上）"New value: +"Era year (1 or greater) / 元号年（1以上）"Input schema / properties / month / descriptionPrevious value: -"月（1〜12）"New value: +"Month 1-12 / 月（1〜12）"geo.geocode2 fields changedInput schema / additionalPropertiesRemoved value: -falseOutput schema / properties / source / constPrevious value: -"国土地理院"New value: +"gsi-japan"geo.reverseGeocode2 fields changedInput schema / additionalPropertiesRemoved value: -falseOutput schema / properties / source / constPrevious value: -"国土地理院"New value: +"gsi-japan"houjin.lookup1 field changedInput schema / additionalPropertiesRemoved value: -falseinvoice.validate1 field changedInput schema / additionalPropertiesRemoved value: -falseinvoice.verify3 fields changedInput schema / additionalPropertiesRemoved value: -falseOutput schema / properties / cancelDate / anyOfAdded value: +[
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / cancelDate / typeRemoved value: -[
- "string",
- "null"
-]kanji.toKana1 field changedInput schema / additionalPropertiesRemoved value: -falselaw.search10 fields changedInput schema / additionalPropertiesRemoved value: -falseOutput schema / properties / laws / items / properties / abbrev / anyOfAdded value: +[
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / laws / items / properties / abbrev / typeRemoved value: -[
- "string",
- "null"
-]Output schema / properties / laws / items / properties / category / anyOfAdded value: +[
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / laws / items / properties / category / typeRemoved value: -[
- "string",
- "null"
-]Output schema / properties / laws / items / properties / promulgationDate / anyOfAdded value: +[
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / laws / items / properties / promulgationDate / typeRemoved value: -[
- "string",
- "null"
-]Output schema / properties / laws / items / properties / updated / anyOfAdded value: +[
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+]Output schema / properties / laws / items / properties / updated / typeRemoved value: -[
- "string",
- "null"
-]Output schema / properties / source / constPrevious value: -"e-Gov 法令検索"New value: +"egov-hourei-api"name.romanize1 field changedInput schema / additionalPropertiesRemoved value: -falsepostal.lookup1 field changedInput schema / additionalPropertiesRemoved value: -falsewareki.convert2 fields changedInput schema / additionalPropertiesRemoved value: -falseInput schema / properties / eraYear / maximumAdded value: +9007199254740991geo.geocodegeo.reverseGeocodehoujin.lookup1 field changedInput schema / properties / number / descriptionPrevious value: -"法人番号（13桁の数字、例: 8010401050783）"New value: +"法人番号（13桁の数字、例: 7000012050002）"invoice.validate1 field changedInput schema / properties / number / descriptionPrevious value: -"インボイス番号（例: T8010401050783）"New value: +"インボイス番号（例: T7000012050002）"invoice.verify1 field changedInput schema / properties / number / descriptionPrevious value: -"インボイス番号（例: T8010401050783）"New value: +"インボイス番号（例: T7000012050002）"law.searchhoujin.lookupinvoice.validateinvoice.verifykanji.toKananame.romanizepostal.lookupwareki.convertJapan data tools for AI agents: calendar (rokuyo), address, name splitting, corporate number lookup
Normalize and romanize Japanese addresses, look up postal codes, count Japanese business days.
日本の住所⇄郵便番号を変換。表記ゆれも吸収。Japan address ⇄ postal code, handles messy input. Free tier, no API key.
Exact Japanese text & date tools: char count, business days with JP holidays, era, tax, units.
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