> ## Documentation Index > Fetch the complete documentation index at: https://docs.casebyte.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get Citing Cases > Returns later judgments that cite the given case. Combines direct case-to-case citations with action-number citations (where the citing case mentioned an action number that wasn't resolved to a case ID by the citation parser). Results are deduplicated by `case_id` and sorted by `publish_date` descending. Pagination is not supported — the full list is returned in a single response. ## OpenAPI ````yaml /api-reference/openapi.json get /v1/cases/{id}/cited-by openapi: 3.1.0 info: title: Casebyte API description: >- REST API for searching and retrieving Hong Kong case law. See the guides at https://docs.casebyte.ai for tutorials and conceptual overviews. version: 1.1.0 contact: name: Casebyte support email: support@casebyte.ai url: https://casebyte.ai license: name: Proprietary servers: - url: https://api.casebyte.ai description: Production security: - bearerAuth: [] tags: - name: Cases description: Search and retrieve Hong Kong case law. - name: Health description: Service health checks. - name: Daily description: Completed case summaries within the active seven Hong Kong calendar days. paths: /v1/cases/{id}/cited-by: get: tags: - Cases summary: Get Citing Cases description: >- Returns later judgments that cite the given case. Combines direct case-to-case citations with action-number citations (where the citing case mentioned an action number that wasn't resolved to a case ID by the citation parser). Results are deduplicated by `case_id` and sorted by `publish_date` descending. Pagination is not supported — the full list is returned in a single response. parameters: - name: id in: path required: true description: >- Case identifier — case ID, neutral citation, or action number. Same format as `GET /v1/cases/{id}`. schema: type: string example: HKCFA_2021_12 responses: '200': description: List of citing cases. headers: X-RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' X-RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' content: application/json: schema: $ref: '#/components/schemas/CitedByResponse' example: case_id: HKCFA_2021_12 total: 2 citing_cases: - case_id: HKCA_2023_487 case_name: Smith v AG neutral_citation: '[2023] HKCA 487' publish_date: '2023-09-15' citation_text: '[2021] HKCFA 12' - case_id: HKCFI_2022_1843 case_name: Lee v Commissioner of Police neutral_citation: '[2022] HKCFI 1843' publish_date: '2022-07-04' citation_text: '[2021] HKCFA 12' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/CaseNotFound' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalError' components: headers: RateLimitLimit: description: Per-window quota for this API key. schema: type: integer example: 10 RateLimitRemaining: description: Requests remaining in the current window. schema: type: integer example: 9 schemas: CitedByResponse: type: object required: - case_id - total - citing_cases properties: case_id: type: string description: >- The cited (target) case — canonical ID, regardless of how you supplied it. total: type: integer description: Number of unique citing cases. citing_cases: type: array items: $ref: '#/components/schemas/CitingCase' CitingCase: type: object required: - case_id properties: case_id: type: string example: HKCA_2023_487 case_name: type: - string - 'null' neutral_citation: type: - string - 'null' publish_date: type: - string - 'null' format: date citation_text: type: string description: The exact citation string used by the citing case. Error: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string description: >- Stable, machine-readable error code. Branch on this in your code. message: type: string description: >- Human-readable summary. May change between versions; do not branch on this. details: description: Optional, endpoint-specific extra context. nullable: true responses: Unauthorized: description: Missing, malformed, or revoked credentials. content: application/json: schema: $ref: '#/components/schemas/Error' examples: missing: summary: No Authorization header value: error: code: missing_credentials message: Authorization header with a Bearer token is required. invalid: summary: Unrecognised key value: error: code: invalid_credentials message: API key not recognised. revoked: summary: Revoked key value: error: code: revoked_credentials message: API key has been revoked. CaseNotFound: description: No case matched the supplied identifier. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: case_not_found message: No case matched that identifier. details: identifier: HKCFA_9999_0 RateLimited: description: >- You exceeded your per-minute quota. Back off with exponential delay and jitter — `Retry-After` is intentionally not returned. headers: X-RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' X-RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: rate_limited message: Rate limit exceeded. InternalError: description: Something went wrong on our side. Retry with exponential backoff. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: code: internal_error message: Internal server error. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: cb_live_* description: >- Casebyte API key, prefixed with `cb_live_`. Generate one from your [casebyte.ai dashboard](https://casebyte.ai/dashboard). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.