Search Japanese Laws by Title: Law ID, Number, Category, Revision and Enforcement Dates (e-Gov 法令検索)
egovlaws/search-japanese-laws
Search the Japanese statute database by a keyword in the law title (in Japanese, for example 民法 for the Civil Code). Returns up to 100 matching laws with their law ID, law number, category, current revision, amendment and enforcement dates, repeal status and last-updated time, plus the total number of matches. Metadata only, not the text of the laws. A keyword that matches nothing returns an empty list. Data from the e-Gov 法令検索 law database of the Digital Agency of Japan, passed through unmodified and served by Eden Engine; not an official Digital Agency product.
Price
$0.0026 per call
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.
Data source
e-Gov 法令検索 (Digital Agency, Japan)
出典：e-Gov法令検索（https://laws.e-gov.go.jp）, デジタル庁. Japan Public Data License 1.0. Served by Eden Engine; not an official Digital Agency product.
Use it
Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.
Connect once and your AI can find and run this tool, and any other it needs.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "egovlaws/search-japanese-laws" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "egovlaws/search-japanese-laws" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "egovlaws/search-japanese-laws", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "egovlaws/search-japanese-laws", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.
Pricing
Every charge this tool can incur.
| Charge | Price |
|---|---|
Per call | $0.0026 |
- Updated
- Oct 20, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"law_title"
],
"properties": {
"law_title": {
"type": "string",
"maxLength": 100,
"minLength": 1,
"description": "A keyword that appears in the law's title, in Japanese, for example 民法 (Civil Code) or 著作権 (copyright). Laws whose title contains it are returned."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"required": [
"total_count",
"count",
"laws"
],
"properties": {
"laws": {
"type": "array",
"items": {
"type": "object",
"properties": {
"law_info": {
"type": "object",
"description": "Identity of the law: `law_id`, `law_num` (the official number, in Japanese), `law_type`, the era, year and number parts of the law number, and `promulgation_date`.",
"additionalProperties": true
},
"revision_info": {
"type": "object",
"properties": {
"abbrev": {
"description": "Abbreviated title, when there is one."
},
"updated": {
"type": "string",
"description": "When the record was last updated, with a +09:00 offset."
},
"category": {
"type": "string",
"description": "Subject category, in Japanese."
},
"law_type": {
"type": "string"
},
"law_title": {
"type": "string",
"description": "Title of the law, in Japanese."
},
"repeal_date": {},
"repeal_status": {
"type": "string"
},
"law_title_kana": {
"description": "Reading of the title in kana."
},
"law_revision_id": {
"type": "string"
},
"remain_in_force": {
"type": "boolean"
},
"amendment_law_id": {},
"amendment_law_num": {},
"amendment_law_title": {},
"current_revision_status": {
"type": "string"
},
"amendment_promulgate_date": {},
"amendment_enforcement_date": {},
"amendment_scheduled_enforcement_date": {}
},
"description": "One revision of a law: its title, category, amendment and enforcement dates, repeal status and last-updated time.",
"additionalProperties": true
},
"current_revision_info": {
"type": "object",
"properties": {
"abbrev": {
"description": "Abbreviated title, when there is one."
},
"updated": {
"type": "string",
"description": "When the record was last updated, with a +09:00 offset."
},
"category": {
"type": "string",
"description": "Subject category, in Japanese."
},
"law_type": {
"type": "string"
},
"law_title": {
"type": "string",
"description": "Title of the law, in Japanese."
},
"repeal_date": {},
"repeal_status": {
"type": "string"
},
"law_title_kana": {
"description": "Reading of the title in kana."
},
"law_revision_id": {
"type": "string"
},
"remain_in_force": {
"type": "boolean"
},
"amendment_law_id": {},
"amendment_law_num": {},
"amendment_law_title": {},
"current_revision_status": {
"type": "string"
},
"amendment_promulgate_date": {},
"amendment_enforcement_date": {},
"amendment_scheduled_enforcement_date": {}
},
"description": "One revision of a law: its title, category, amendment and enforcement dates, repeal status and last-updated time.",
"additionalProperties": true
}
},
"additionalProperties": true
},
"description": "The matching laws. Empty when the keyword matches no title."
},
"count": {
"type": "integer",
"description": "How many laws are in this response."
},
"next_offset": {
"type": "integer",
"description": "Present only when more matches exist than this response holds."
},
"total_count": {
"type": "integer",
"description": "How many laws match the keyword in all."
}
},
"description": "The e-Gov Law API search response: how many laws match, how many are in this page, and the matching laws.",
"additionalProperties": true
}