> ## Documentation Index > Fetch the complete documentation index at: https://quantura.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Read newly observed prices to overlay a saved forecast > Returns genuine selected-side targets (Kalshi closing ask, Polymarket US display quote) or stock closes after the immutable input cutoff. The first prediction-row minute is retained when available, even outside the most recent 500 observations; worker completion does not move this comparison to another minute. A quote preceding publication is retrospective, not a backdated fill. Stock rows include interval and exchange session_date metadata; minute closes are not final daily closes. Does not run models or revise predictions. Poll no faster than once per minute. Stock overlays have no fixed 90-day cutoff-age limit: retained forecast-interval closes support 120/180-day replays, bounded to 2,000 rows; recent stock minutes use a seven-day window. Prediction-market and perpetual live overlays expire 90 days after input cutoff and expose their availability state. Provider retention still applies. Dataset-only jobs return no live observations. ## OpenAPI ````yaml https://quantura.studio/api/openapi.json get /ensemble-forecasts/{forecast_id}/observations openapi: 3.1.0 info: title: Quantura Forecast Intelligence API version: 1.0.0 description: >- Versioned access to Quantura forecasts, collaborator-aware workspaces, screeners, datasets, and provenance metadata. contact: name: Quantura url: https://quantura.studio/contact license: name: Quantura API Terms url: https://quantura.studio/terms servers: - url: https://quantura.studio/api/v1 security: - bearerAuth: [] tags: - name: Access description: Identity, token scopes, plans, and effective workspace access. - name: Workspaces description: Resources are authorized against current membership on every request. - name: Uploaded CSVs description: Workspace-isolated CSV metadata, organization, and authorized exports. - name: Datasets description: Licensing-aware catalog and schema metadata. - name: Forecasts description: Prospective forecasts and immutable probability trajectories. - name: Ensemble Forecasts description: >- Asynchronous probabilistic time-series ensemble jobs and reproducible presets. - name: Backtests description: >- Asynchronous point-in-time ensemble-quantile simulations and versioned strategy exports; never live order execution. paths: /ensemble-forecasts/{forecast_id}/observations: get: tags: - Ensemble Forecasts summary: Read newly observed prices to overlay a saved forecast description: >- Returns genuine selected-side targets (Kalshi closing ask, Polymarket US display quote) or stock closes after the immutable input cutoff. The first prediction-row minute is retained when available, even outside the most recent 500 observations; worker completion does not move this comparison to another minute. A quote preceding publication is retrospective, not a backdated fill. Stock rows include interval and exchange session_date metadata; minute closes are not final daily closes. Does not run models or revise predictions. Poll no faster than once per minute. Stock overlays have no fixed 90-day cutoff-age limit: retained forecast-interval closes support 120/180-day replays, bounded to 2,000 rows; recent stock minutes use a seven-day window. Prediction-market and perpetual live overlays expire 90 days after input cutoff and expose their availability state. Provider retention still applies. Dataset-only jobs return no live observations. operationId: getEnsembleForecastObservations parameters: - name: forecast_id in: path required: true description: Forecast id or unique slug. schema: type: string responses: '200': description: >- Authorized current observations, possibly empty when no new data is available. content: application/json: schema: type: object properties: data: type: object properties: forecast_id: type: string rows: type: array items: type: object properties: timestamp: type: string format: date-time target: type: number input_cutoff: type: string format: date-time observed_at: type: string format: date-time availability: type: string refresh_after_seconds: type: integer meta: type: object example: data: forecast_id: ens_example rows: - timestamp: '2026-09-11T22:01:00Z' target: 0.51 input_cutoff: '2026-09-11T22:00:00Z' observed_at: '2026-09-11T22:01:10Z' availability: available refresh_after_seconds: 60 meta: api_version: v1 '401': description: Authentication failed content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - request_id properties: code: type: string message: type: string request_id: type: string format: uuid '403': description: Scope, plan, or workspace authorization denied content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - request_id properties: code: type: string message: type: string request_id: type: string format: uuid '429': description: Rate limit exceeded content: application/json: schema: type: object required: - error properties: error: type: object required: - code - message - request_id properties: code: type: string message: type: string request_id: type: string format: uuid components: securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: Quantura API key ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.