> ## Documentation Index > Fetch the complete documentation index at: https://docs.usecroma.com/llms.txt > Use this file to discover all available pages before exploring further. # Courts of Japan Ruling > Retrieve one ruling of the courts of Japan by its `id` from a search result (e.g. `93117`) or its `official_url`: its full text, the case number and name, the court, the date, the outcome, the court's summary and the statutes cited, the court's document as published, and the link to its page at the courts. The text comes back a character range at a time (`offset`, `limit`); follow `next_offset` until `has_more` is false. **Dataset endpoint**: answers from the whole source in milliseconds and carries `as_of`. ## OpenAPI ````yaml /api-reference/openapi.json post /jp/courts-jp/ruling/v1 openapi: 3.1.0 info: title: Croma Marketplace API version: 1.0.0 description: >- Government-data APIs for Colombia, Peru, Mexico, United States, Brazil, El Salvador, Bolivia, and Japan, plus global web search. Croma normalizes public-sector data into structured JSON for product teams and AI agents. Every operation is a POST with a JSON body and an organization API key as a bearer token; every operation is an idempotent lookup and accepts an optional `Idempotency-Key` header. Paths carry their major version (`/v1`); the versioning and deprecation policy, including the `Deprecation` and `Sunset` headers a retiring endpoint sends, is at https://docs.usecroma.com/versioning. Rate limits are per organization and reported on every response (`RateLimit-Policy`, `X-RateLimit-*`): https://docs.usecroma.com/rate-limits. termsOfService: https://usecroma.com/en/terms contact: name: Croma support url: https://usecroma.com/en/support email: support@usecroma.com servers: - url: https://api.croma.run security: [] paths: /jp/courts-jp/ruling/v1: post: tags: - Japan - Courts of Japan summary: Courts of Japan Ruling description: >- Retrieve one ruling of the courts of Japan by its `id` from a search result (e.g. `93117`) or its `official_url`: its full text, the case number and name, the court, the date, the outcome, the court's summary and the statutes cited, the court's document as published, and the link to its page at the courts. The text comes back a character range at a time (`offset`, `limit`); follow `next_offset` until `has_more` is false. **Dataset endpoint**: answers from the whole source in milliseconds and carries `as_of`. operationId: courts_jp_ruling parameters: - $ref: '#/components/parameters/IdempotencyKey' requestBody: required: true content: application/json: schema: type: object required: - ruling_id properties: ruling_id: type: string minLength: 1 maxLength: 600 description: >- The ruling's `id` from a search result, e.g. `93117`. Its `official_url` or `source_document_url` works too. offset: type: integer minimum: 0 maximum: 10000000 default: 0 description: >- First character of the range to return. Pass the previous response's `next_offset` to continue reading. limit: type: integer minimum: 1000 maximum: 1000000 default: 200000 description: Maximum characters to return (1000-1000000). additionalProperties: false example: ruling_id: '93117' responses: '200': description: Successful response headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' X-Cache: $ref: '#/components/headers/X-Cache' content: application/json: schema: $ref: '#/components/schemas/CourtsJpRulingResponse' '400': description: Invalid request body headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' '401': description: Missing or invalid API key headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' '429': description: Rate limit exceeded headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' Retry-After: $ref: '#/components/headers/Retry-After' content: application/json: schema: $ref: '#/components/schemas/ApiError' '500': description: Internal error headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' '502': description: Upstream source returned an error headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' security: - bearerAuth: [] externalDocs: description: Interactive documentation and examples url: https://docs.usecroma.com/guides/japan/courts components: parameters: IdempotencyKey: name: Idempotency-Key in: header required: false description: >- Optional client-chosen key for this request (any string up to 255 characters, e.g. a UUID). Every Croma operation is an idempotent lookup: repeating a request with the same body returns the same result and creates nothing, so retrying after a timeout or network failure is always safe. The key is echoed back in the `Idempotency-Key` response header so you can correlate a retry with its first attempt. Each attempt that reaches the API counts against the rate limit. schema: type: string maxLength: 255 example: 0f8e9a42-6b7c-4d1e-9a3f-2c5d7e8f9a0b headers: X-Request-Id: description: Unique id for the request (req_…). Include it in support reports. schema: type: string RateLimit-Policy: description: >- Quota policy for this endpoint as an IETF RateLimit-Policy structured field, e.g. `"default";q=100;w=86400` (100 requests per 86400-second window per organization). Endpoints with an extra hourly ceiling list both policies, e.g. `"webSearch";q=100;w=3600, "default";q=100;w=86400`. Present on every response, including 401 and 429. schema: type: string example: '"default";q=100;w=86400' Idempotency-Key: description: >- The `Idempotency-Key` the request carried, echoed back unchanged. Absent when the request sent none. schema: type: string Deprecation: description: >- Present only on an endpoint version scheduled for removal: the date the deprecation took effect (RFC 9745). A `Sunset` header and a `Link` with `rel="successor-version"` accompany it. Policy: https://docs.usecroma.com/versioning schema: type: string example: '@1767225600' Sunset: description: >- Present only on an endpoint version scheduled for removal: the date after which it answers 410 (RFC 8594). Announced in the changelog at least 90 days ahead. schema: type: string format: date-time example: Wed, 01 Apr 2026 00:00:00 GMT X-RateLimit-Limit: description: Requests allowed in the current window. schema: type: integer X-RateLimit-Remaining: description: Requests left before you are throttled. schema: type: integer X-RateLimit-Reset: description: ISO 8601 timestamp when the window resets. schema: type: string format: date-time X-Cache: description: >- HIT or MISS. Cached hits spend no credits, but still count toward an hourly ceiling. schema: type: string enum: - HIT - MISS Retry-After: description: Seconds to wait before retrying. schema: type: integer schemas: CourtsJpRulingResponse: type: object required: - data properties: data: $ref: '#/components/schemas/CourtsJpRulingData' ApiError: type: object required: - error properties: error: type: object required: - type - code - message properties: type: type: string description: >- Broad category: invalid_request_error, authentication_error, not_found_error, rate_limit_error, upstream_error, api_error. code: type: string description: Machine-readable specific code. message: type: string description: Human-readable explanation, safe to surface in UI. param: type: string description: Field that triggered the error. Present on validation errors. details: type: object description: Free-form structured detail. CourtsJpRulingData: type: object properties: as_of: anyOf: - type: string - type: 'null' description: How current the data in this response is. found: type: boolean ruling_id: type: string ruling: anyOf: - type: object properties: id: type: string description: >- The ruling's permanent number at the courts' site, e.g. "93117". Unique across every collection. collections: type: array items: type: string description: >- The collections the courts publish the ruling in: `supreme` (最高裁判所判例集), `high` (高等裁判所判例集), `lower` (下級裁判所裁判例速報), `administrative` (行政事件裁判例集), `labor` (労働事件裁判例集), `ip` (知的財産裁判例集), `ip_high` (知的財産高等裁判所). One ruling can sit in several. case_number: anyOf: - type: string - type: 'null' description: >- The case number as the court prints it, e.g. "平成21(オ)257", "令和7(あ)868". case_year: anyOf: - type: number - type: 'null' description: The Gregorian year the case was filed, from its number. title: anyOf: - type: string - type: 'null' description: >- The case name (事件名), e.g. "損害賠償請求事件". Null when the court published none. ruling_date: type: string description: '`yyyy-mm-dd` the ruling was handed down.' ruling_date_japanese: anyOf: - type: string - type: 'null' description: The same date in the Japanese calendar, e.g. "平成22年6月17日". year: type: number description: The year of the ruling. court: anyOf: - type: string - type: 'null' description: >- The court, and for the Supreme Court its bench, e.g. "最高裁判所第一小法廷", "東京高等裁判所", "大阪地方裁判所". branch: anyOf: - type: string - type: 'null' description: The branch of the court (支部), when the ruling names one. department: anyOf: - type: string - type: 'null' description: The division of the court (部), when the ruling names one. judgment_type: anyOf: - type: string - type: 'null' description: The kind of decision, e.g. "判決" (judgment), "決定" (decision). result: anyOf: - type: string - type: 'null' description: >- The outcome as the court records it, e.g. "棄却", "破棄差戻", "却下", "その他". reporter: anyOf: - type: string - type: 'null' description: >- The official reports citation (判例集等巻・号・頁), when the ruling is reported. lower_court: anyOf: - type: string - type: 'null' description: >- The court whose decision was appealed (原審), when there is one. lower_case_number: anyOf: - type: string - type: 'null' description: The case number at the lower court. lower_ruling_date: anyOf: - type: string - type: 'null' description: '`yyyy-mm-dd` of the lower court''s decision.' lower_result: anyOf: - type: string - type: 'null' description: The lower court's outcome, when the courts state it. holding: anyOf: - type: string - type: 'null' description: >- The court's statement of what was decided (判示事項), when published. gist: anyOf: - type: string - type: 'null' description: >- The court's summary of the reasoning (裁判要旨 or 要旨), when published. statutes: anyOf: - type: string - type: 'null' description: >- The provisions the ruling turns on (参照法条), as the court lists them. field: anyOf: - type: string - type: 'null' description: >- The field the courts file an administrative or labour case under (分野), when stated. right_type: anyOf: - type: string - type: 'null' description: >- For an intellectual property case, the right at issue (権利種別), e.g. "特許権", "著作権", "商標権". suit_type: anyOf: - type: string - type: 'null' description: >- For an intellectual property case, the kind of suit (訴訟類型), e.g. "民事訴訟", "審決取消". ip_case_kind: anyOf: - type: string - type: 'null' description: For an IP High Court case, the kind of case (事件種別). invention: anyOf: - type: string - type: 'null' description: >- For an IP High Court case, the title of the invention, mark or work (発明等の名称等). issues: anyOf: - type: string - type: 'null' description: For an IP High Court case, the main issues (主な争点). appeal: anyOf: - type: string - type: 'null' description: >- For an IP High Court case, whether a further appeal was lodged (上告提起等の有無). appeal_result: anyOf: - type: string - type: 'null' description: >- For an IP High Court case, the result of that appeal (上告審の結果). ip_result: anyOf: - type: string - type: 'null' description: >- For an IP High Court case, the outcome as that court records it (判決結果). text_status: type: string enum: - ok - scanned - missing description: >- `ok` when the full text is here; `scanned` when the court's document carries no text layer; `missing` when the court published no document. official_url: type: string description: The ruling's page at the courts' site. document_url: anyOf: - type: string - type: 'null' description: >- Croma's copy of the court's document (PDF), byte for byte as published. It stays available whatever happens to the court's own site. Null when the court published none. source_document_url: anyOf: - type: string - type: 'null' description: The document's own link at the courts' site. content: anyOf: - type: object properties: text: type: string description: The requested character range of the ruling's text. offset: type: number description: >- First character of the range, which is where the reading actually started. total_length: type: number description: >- Length of the whole text in characters, however much of it this response carries. has_more: type: boolean description: Whether the text continues past this range. next_offset: anyOf: - type: number - type: 'null' description: >- Pass this back as `offset` to read the next range. Null at the end of the text. required: - text - offset - total_length - has_more - next_offset - type: 'null' description: >- A range of the ruling's text, or null when `text_status` is not `ok`. required: - id - collections - case_number - case_year - title - ruling_date - ruling_date_japanese - year - court - branch - department - judgment_type - result - reporter - lower_court - lower_case_number - lower_ruling_date - lower_result - holding - gist - statutes - field - right_type - suit_type - ip_case_kind - invention - issues - appeal - appeal_result - ip_result - text_status - official_url - document_url - source_document_url - content - type: 'null' required: - as_of - found - ruling_id - ruling securitySchemes: bearerAuth: type: http scheme: bearer description: 'Use Authorization: Bearer YOUR_API_KEY' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.