> ## 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. # Attribute Time Series > Returns the daily trend for ONE attribute, brand and competitors side by side. Requires an attribute_id — call GET /api/v1/attributes first to discover ids. Days with no data are returned as zeros, so the series is gap-free and chartable. Denominators are per-side, not the day's whole response set: brand_percentage divides by that day's responses that mention the brand (and had attribute extraction run), and competitor_percentage by responses that mention the tracked competitors. brand_total and competitor_total return those denominators explicitly. Competitor figures aggregate all tracked competitors unless filters.competitor_ids narrows them. ## OpenAPI ````yaml /api-reference/openapi.json post /api/v1/attributes/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. - name: Knowledge Base description: >- Endpoints for reading the brand Knowledge Base — approved brand facts and the pillars that organize them. paths: /api/v1/attributes/time-series: post: tags: - Attributes summary: Attribute Time Series description: >- Returns the daily trend for ONE attribute, brand and competitors side by side. Requires an attribute_id — call GET /api/v1/attributes first to discover ids. Days with no data are returned as zeros, so the series is gap-free and chartable. Denominators are per-side, not the day's whole response set: brand_percentage divides by that day's responses that mention the brand (and had attribute extraction run), and competitor_percentage by responses that mention the tracked competitors. brand_total and competitor_total return those denominators explicitly. Competitor figures aggregate all tracked competitors unless filters.competitor_ids narrows them. operationId: getAttributeTimeSeries requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/AttributeTimeSeriesRequest' responses: '200': description: Successful response with the daily series content: application/json: schema: type: object properties: data: type: array items: $ref: '#/components/schemas/AttributeTimeSeriesEntry' required: - data example: data: - date: '2026-07-15' brand_count: 1 brand_total: 2 brand_percentage: 50 competitor_count: 0 competitor_total: 0 competitor_percentage: 0 '400': description: Bad request - Invalid parameters content: application/json: schema: $ref: '#/components/schemas/Error' '401': description: Unauthorized - Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/Error' '403': description: Forbidden - API key cannot access this website content: application/json: schema: $ref: '#/components/schemas/Error' '404': description: Not found - Website or attribute does not exist content: application/json: schema: $ref: '#/components/schemas/Error' security: - apiKey: [] components: schemas: AttributeTimeSeriesRequest: type: object properties: website_id: type: string format: uuid attribute_id: type: string format: uuid description: The attribute to chart. Obtain ids from GET /api/v1/attributes. filters: $ref: '#/components/schemas/ApiFilters' required: - website_id - attribute_id - filters AttributeTimeSeriesEntry: type: object properties: date: type: string format: date brand_count: type: integer brand_total: type: integer brand_percentage: type: number competitor_count: type: integer competitor_total: type: integer competitor_percentage: type: number required: - date - brand_count - brand_total - brand_percentage - competitor_count - competitor_total - competitor_percentage 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). ````