> ## Documentation Index > Fetch the complete documentation index at: https://docs.athenahq.ai/llms.txt > Use this file to discover all available pages before exploring further. # Citation Rate Over Time > Returns daily citation rate breakdown over the specified date range. Each entry contains the date and citation rate percentages for your brand and competitors. ## OpenAPI ````yaml /api-reference/openapi.json post /api/v1/metrics/citation-rate/time-series openapi: 3.1.0 info: title: AthenaHQ API description: >- AthenaHQ API provides programmatic access to manage your websites and prompts for AI-powered content optimization. version: 1.0.0 contact: email: support@athenahq.ai servers: - url: https://api.athenahq.ai description: Production server security: - apiKey: [] tags: - name: Basics description: Core API operations for managing websites and prompts - name: Metrics description: Metrics and analytics endpoints for tracking AI visibility - name: Billing description: Billing and credits endpoints for managing usage - name: Team Management description: Endpoints for managing team members and invitations - name: Groups description: Endpoints for managing groups of websites - name: Content description: >- Endpoints for accessing Content Hub data — tabs, tracked URLs, and per-URL prompt breakdowns. - name: Pitch Workspace description: >- Endpoints for accessing pitch workspace reports — org-scoped pitch runs with competitors, prompts, attributes, and aggregate metrics. paths: /api/v1/metrics/citation-rate/time-series: post: tags: - Metrics summary: Citation Rate Over Time description: >- Returns daily citation rate breakdown over the specified date range. Each entry contains the date and citation rate percentages for your brand and competitors. operationId: getTimeSeriesCitationRate requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/CitationRateRequest' responses: '200': description: Successful response with time series data content: application/json: schema: type: object properties: data: type: array items: $ref: '#/components/schemas/TimeSeriesCitationRateEntry' required: - data example: data: - date: '2024-06-15' metrics: Acme Corp: citation_rate: 28.5 is_self: true Competitor Inc: citation_rate: 15.2 is_self: false '400': description: Bad request - Invalid parameters content: application/json: schema: $ref: '#/components/schemas/Error' examples: missing_website_id: value: error: 'website_id: Required' missing_filters: value: error: 'filters: Required' '401': description: Unauthorized - Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/Error' '403': description: Forbidden - You don't have access to this website content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Unauthorized access to this website '404': description: Website not found content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Website not found '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/Error' security: - apiKey: [] components: schemas: CitationRateRequest: type: object description: Request body for citation rate endpoints required: - website_id - filters properties: website_id: type: string format: uuid description: The ID of the website to query citation rates for example: 123e4567-e89b-12d3-a456-426614174000 filters: $ref: '#/components/schemas/ApiFilters' example: website_id: 123e4567-e89b-12d3-a456-426614174000 filters: start_date: '2024-01-01T00:00:00.000Z' end_date: '2024-01-31T23:59:59.999Z' location_ids: - 123e4567-e89b-12d3-a456-426614174111 TimeSeriesCitationRateEntry: type: object description: Daily citation rate data point required: - date - metrics properties: date: type: string format: date description: Date in YYYY-MM-DD format example: '2024-06-15' metrics: type: object description: Company names as keys with citation rate data as values additionalProperties: type: object properties: citation_rate: type: number description: Citation rate percentage for this day is_self: type: boolean description: True if this is your tracked website Error: type: object description: Error response object required: - error properties: error: type: string description: Error message describing what went wrong example: Unauthorized ApiFilters: type: object description: >- Filters for querying responses and metrics. Pass location filters in the JSON body as `filters.location_ids`. required: - start_date properties: start_date: type: string format: date-time description: Filter start date (UTC) example: '2024-01-01T00:00:00.000Z' end_date: type: string format: date-time description: Filter end date (UTC) example: '2024-12-31T23:59:59.999Z' models: type: array description: Filter by AI models items: type: string enum: - chatgpt - perplexity - gemini - google_ai_overview - copilot - claude - ai_mode - grok - deepseek example: - chatgpt - perplexity prompt_ids: type: array description: Filter by specific prompt IDs items: type: string format: uuid competitor_ids: type: array description: Filter by specific competitor IDs items: type: string format: uuid location_ids: type: array description: >- Filter by location IDs. Pass this in the JSON body as `filters.location_ids`, even when filtering by a single location. Use IDs returned by `GET /api/v1/locations`. items: type: string format: uuid example: - 123e4567-e89b-12d3-a456-426614174111 prompt_status: type: string enum: - active - paused description: Filter by prompt status prompt_type: type: string enum: - branded - non_branded description: Filter by prompt type securitySchemes: apiKey: type: apiKey in: header name: x-api-key description: >- API key for authentication. You can create one [here](https://app.athenahq.ai/organization?tab=api). ````