> ## Documentation Index > Fetch the complete documentation index at: https://docs.surfacd.com/llms.txt > Use this file to discover all available pages before exploring further. # Sources (Hostnames) > Paginated list of hostnames (e.g. `blog.example.com`) cited by AI responses for the project across the date range. ## OpenAPI ````yaml /openapi.json get /api/v1/projects/{project}/sources-data/hostnames openapi: 3.1.0 info: title: Surfacd Public API version: 1.0.0 description: >- Public API for Surfacd. Team-scoped operations live under `/api/v1/team/...`; project collections live under `/api/v1/projects`; project-scoped operations live under `/api/v1/projects/{project}/...`. All endpoints require a Bearer team API key created in Team Settings. The API key selects the team for team-level and collection endpoints. servers: - url: https://app.surfacd.com description: Production security: - bearerAuth: [] tags: - name: Projects description: Project management endpoints. Reads only in this version. - name: Prompts description: Prompt management endpoints. Reads only in this version. - name: Team description: Team settings and plan details for the current team. - name: Reporting description: >- Read-only reporting endpoints for projects (brand rankings, mentions, visibility, matrix analysis, source data). - name: Reference description: Reference data used by create, update, and reporting filters. - name: Tags description: Project tag management endpoints. paths: /api/v1/projects/{project}/sources-data/hostnames: parameters: - $ref: '#/components/parameters/ProjectUuid' get: tags: - Reporting summary: Sources (Hostnames) description: >- Paginated list of hostnames (e.g. `blog.example.com`) cited by AI responses for the project across the date range. operationId: v1ProjectsSourcesDataHostnames parameters: - name: start_date in: query required: true schema: type: string format: date - name: end_date in: query required: true schema: type: string format: date - name: tags in: query required: false schema: type: array items: type: string format: uuid description: >- Tag UUID filters. Discover tag UUIDs with `GET /api/v1/projects/{project}/tags`. style: form explode: true - name: services in: query required: false schema: type: array items: type: string description: >- AI platform provider filters such as `chatgpt` or `perplexity`. Discover providers with `GET /api/v1/platforms`. style: form explode: true - name: countries in: query required: false schema: type: array items: type: string description: >- Country code filters such as `US` or `GB`. Discover codes with `GET /api/v1/countries`. style: form explode: true - name: categories in: query required: false schema: type: array items: $ref: '#/components/schemas/DomainCategory' description: >- Domain category enum filters. Discover values with `GET /api/v1/domain-categories`. style: form explode: true - name: prompt in: query required: false schema: type: string format: uuid description: Prompt UUID filter. - name: topics in: query required: false schema: type: array items: type: string description: >- Topic UUID filters. Use `no_topic` for prompts without a topic. Discover topic UUIDs with `GET /api/v1/projects/{project}/topics`. style: form explode: true - name: per_page in: query required: false schema: type: integer minimum: 1 maximum: 100 default: 20 - name: page in: query required: false schema: type: integer minimum: 1 - name: search_term in: query required: false schema: type: string maxLength: 255 responses: '200': description: Paginated hostname sources. content: application/json: schema: $ref: '#/components/schemas/PaginatedHostnameSource' '422': $ref: '#/components/responses/ValidationError' components: parameters: ProjectUuid: name: project in: path required: true description: Project UUID. schema: type: string format: uuid schemas: DomainCategory: type: string enum: - ugc - editorial - corporate - reference - academic - analyst - institutional - other PaginatedHostnameSource: type: object properties: data: type: array items: $ref: '#/components/schemas/HostnameSource' links: $ref: '#/components/schemas/PaginationLinks' meta: $ref: '#/components/schemas/PaginationMeta' required: - data - meta HostnameSource: type: object properties: hostname: type: string citations_count: type: integer avg_rank: type: number format: float rank: type: integer category: oneOf: - $ref: '#/components/schemas/DomainCategory' - type: 'null' category_label: type: - string - 'null' previous_rank: type: - integer - 'null' previous_citations_count: type: - integer - 'null' total_responses: type: integer domain: type: - string - 'null' response_count: type: integer response_percentage: type: number format: float required: - hostname - citations_count - avg_rank - rank - total_responses - response_count - response_percentage PaginationLinks: type: object properties: first: type: - string - 'null' last: type: - string - 'null' prev: type: - string - 'null' next: type: - string - 'null' required: - first - last - prev - next PaginationMeta: type: object properties: current_page: type: integer from: type: - integer - 'null' last_page: type: integer links: type: array items: $ref: '#/components/schemas/PaginationMetaLink' path: type: - string - 'null' per_page: type: integer to: type: - integer - 'null' total: type: integer required: - current_page - last_page - per_page - total ValidationError: type: object description: Returned when one or more request parameters fail validation. properties: message: type: string errors: type: object additionalProperties: type: array items: type: string required: - message - errors PaginationMetaLink: type: object properties: url: type: - string - 'null' label: type: string active: type: boolean required: - url - label - active responses: ValidationError: description: Validation failed. content: application/json: schema: $ref: '#/components/schemas/ValidationError' securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: token description: >- Team API key created in Team Settings. Use it with URLs for the same team. ````