> ## Documentation Index > Fetch the complete documentation index at: https://docs.devtune.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get visits per answer fetch > Returns AI-referred visits per answer fetch for each page and for the whole project, over completed UTC days ending yesterday. An answer fetch is an AI system retrieving the page while building an answer; it is not a citation. A page is covered only when its visits come from GA4 or PostHog and that provider has synced the whole window; snippet-sourced pages and unsynced pages are no_referral_data, with visits and the ratio null, never 0. The project total is returned only when fewer than 100 pages had activity and all are covered; otherwise summary is null and summaryWithheldReason says why. Covered pages are ranked by visits per answer fetch, highest first, with pages that have no ratio after them; pages without complete referral data follow, by answer fetches. Up to 100 pages. ## OpenAPI ````yaml /openapi.json get /projects/{projectId}/traffic/visits-per-answer-fetch openapi: 3.1.0 info: title: DevTune API version: 2.0.0 description: >- API for programmatic access to your AI visibility data, webhook subscriptions, and automation workflows. Use this API to integrate DevTune data into CI/CD pipelines, BI tools, AI agents, and operational systems. servers: - url: https://devtune.ai/api/v2 description: Production security: - bearerAuth: [] paths: /projects/{projectId}/traffic/visits-per-answer-fetch: get: summary: Get visits per answer fetch description: >- Returns AI-referred visits per answer fetch for each page and for the whole project, over completed UTC days ending yesterday. An answer fetch is an AI system retrieving the page while building an answer; it is not a citation. A page is covered only when its visits come from GA4 or PostHog and that provider has synced the whole window; snippet-sourced pages and unsynced pages are no_referral_data, with visits and the ratio null, never 0. The project total is returned only when fewer than 100 pages had activity and all are covered; otherwise summary is null and summaryWithheldReason says why. Covered pages are ranked by visits per answer fetch, highest first, with pages that have no ratio after them; pages without complete referral data follow, by answer fetches. Up to 100 pages. operationId: getVisitsPerAnswerFetch parameters: - name: projectId in: path required: true schema: type: string format: uuid - name: windowDays in: query schema: type: integer default: 30 enum: - 7 - 30 - 90 description: >- Fixed window of completed UTC days ending yesterday. Supported values: 7, 30, 90. Defaults to 30. - name: cursor in: query schema: type: string description: >- Opaque cursor from the previous response; cursors expire after ~48 hours. - name: pageSize in: query schema: type: integer minimum: 1 maximum: 100 default: 25 description: Results per page. Capped at 100. responses: '200': description: Visits per answer fetch content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/VisitsPerAnswerFetchData' meta: $ref: '#/components/schemas/Meta' required: - data - meta '400': $ref: '#/components/responses/BadRequestError' '401': $ref: '#/components/responses/UnauthorizedError' '403': $ref: '#/components/responses/ForbiddenError' '404': $ref: '#/components/responses/NotFoundError' '429': $ref: '#/components/responses/RateLimitExceededError' components: schemas: VisitsPerAnswerFetchData: type: object additionalProperties: false properties: items: type: array maxItems: 100 items: type: object additionalProperties: false properties: domain: type: - string - 'null' pagePath: type: string answerFetches: type: integer minimum: 0 description: >- Requests from AI answer fetchers retrieving the page while building an answer. An answer fetch is not a citation. aiReferralVisits: type: - integer - 'null' minimum: 0 description: >- Visits that arrived from an AI answer, from the analytics provider in referralSource. Null when coverage is no_referral_data, never 0. visitsPerAnswerFetch: type: - number - 'null' minimum: 0 description: >- aiReferralVisits divided by answerFetches, rounded to 4 decimal places. Null when coverage is no_referral_data or answerFetches is 0. coverage: type: string enum: - covered - no_referral_data description: >- covered only when visits come from GA4 or PostHog and its sync covers the whole window. Snippet-sourced visits, and pages whose provider has not synced the window, are no_referral_data: no complete referral data for this window. referralSource: type: string description: 'Where visits were counted from: ga4, posthog or snippet.' required: - domain - pagePath - answerFetches - aiReferralVisits - visitsPerAnswerFetch - coverage - referralSource summary: description: >- Project total over every page, returned only when fewer than 100 pages had activity and every one is covered. Otherwise null, with summaryWithheldReason. oneOf: - type: object additionalProperties: false properties: aiReferralVisits: type: integer minimum: 0 answerFetches: type: integer minimum: 0 referralSource: type: string description: ga4, posthog, or analytics for both. visitsPerAnswerFetch: type: - number - 'null' minimum: 0 description: Null when answerFetches is 0. required: - aiReferralVisits - answerFetches - referralSource - visitsPerAnswerFetch - type: 'null' summaryWithheldReason: type: - string - 'null' enum: - partial_coverage - page_limit - no_activity - null description: >- Why summary is null: partial_coverage when some pages have no complete referral data; page_limit when the 100-page cap was reached, so not every page can be checked; no_activity when no page had answer fetches or visits. Null when summary is returned. excludedAnswerFetches: type: - integer - 'null' minimum: 0 description: >- With partial_coverage, the answer fetches on pages without complete referral data. Exact, because the list holds every page below the cap. Null otherwise. pageLimit: type: integer enum: - 100 description: Most pages ranked per window. pageLimitReached: type: boolean description: >- True when pageLimit pages were returned, so lower-ranked pages may be omitted and summary is withheld. pagination: type: object additionalProperties: false properties: hasMore: type: boolean nextCursor: type: - string - 'null' pageSize: type: integer minimum: 1 maximum: 100 totalCount: type: integer minimum: 0 maximum: 100 description: Ranked pages available to page through. required: - hasMore - nextCursor - pageSize - totalCount window: type: object additionalProperties: false properties: dateFrom: type: string format: date dateTo: type: string format: date description: Last completed UTC day in the window. required: - dateFrom - dateTo windowDays: type: integer enum: - 7 - 30 - 90 required: - items - summary - summaryWithheldReason - excludedAnswerFetches - pageLimit - pageLimitReached - pagination - window - windowDays Meta: type: object properties: timestamp: type: string format: date-time projectId: type: string format: uuid Error: type: object properties: error: type: string message: type: string reason: type: string description: >- Why the request was refused, for an error with more than one cause, such as a refused content-draft start. details: type: object additionalProperties: true description: >- Machine-readable facts about the refusal, such as shortfall_credits when an Agent Picks start is refused for insufficient_credits. status: type: integer required: - error - message - status responses: BadRequestError: description: Bad request content: application/json: schema: $ref: '#/components/schemas/Error' UnauthorizedError: description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/Error' ForbiddenError: description: Forbidden content: application/json: schema: $ref: '#/components/schemas/Error' NotFoundError: description: Not found content: application/json: schema: $ref: '#/components/schemas/Error' RateLimitExceededError: description: Rate limit exceeded headers: 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' content: application/json: schema: $ref: '#/components/schemas/Error' headers: X-RateLimit-Limit: description: Maximum requests per window schema: type: integer X-RateLimit-Remaining: description: Requests remaining in current window schema: type: integer X-RateLimit-Reset: description: Unix timestamp when the window resets schema: type: integer securitySchemes: bearerAuth: type: http scheme: bearer description: >- API key with dtk_live_ prefix. Obtain it from API Keys in the account sidebar. New keys start with all supported scopes selected for the chosen project, and you can narrow them to specific read/write scopes as needed. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.