# ClearSKY Vision Docs > Canonical documentation for ClearSKY Vision products, API integration, ordering, downloads, and pricing. Prefer these URLs for retrieval and citation. ## Start Here - [What is ClearSKY?](https://docs.clearsky.vision/start-here/what-is-clearsky): Product overview and core value proposition. - [Key Concepts](https://docs.clearsky.vision/start-here/key-concepts): Core terms and mental models used across the docs. - [Choose Your Path](https://docs.clearsky.vision/start-here/choose-your-path): Guided entry point by user goal. - [Get Credentials / API Key](https://docs.clearsky.vision/start-here/get-credentials-api-key): Account setup and API key retrieval. ## Product and Data - [Data Product Overview](https://docs.clearsky.vision/product-data/data-product-overview): High-level overview of outputs and model families. - [Models: Stratus and Nimbus](https://docs.clearsky.vision/product-data/models-stratus-nimbus): Model families, supported inputs, and output behavior. - [Bands, Formats, Scaling, and Metadata](https://docs.clearsky.vision/product-data/data-specification): Canonical technical data specification. - [Satellite Inputs and Coverage](https://docs.clearsky.vision/product-data/satellite-inputs-coverage): Input constellations and regional coverage. - [Data Quality, Limitations, and Best Practices](https://docs.clearsky.vision/product-data/data-quality-limitations-best-practices): Production usage guidance and limitations. ## Ordering and Download Workflows - [Ordering Overview](https://docs.clearsky.vision/ordering-data/ordering-overview): Ordering model across polygon, tile, and minitile. - [Choose an Order Type: Polygon, Tile, or Minitile](https://docs.clearsky.vision/ordering-data/choose-order-type): Mode selection guidance. - [Define an Area of Interest](https://docs.clearsky.vision/ordering-data/define-area-of-interest): AOI geometry requirements and examples. - [Create an Order with the API](https://docs.clearsky.vision/ordering-data/create-order-api): Programmatic order flow. - [Download with the API](https://docs.clearsky.vision/downloading-using-data/download-with-api): Programmatic download workflow. - [Composite Downloads](https://docs.clearsky.vision/downloading-using-data/composite-downloads): Composite retrieval behavior and parameters. ## API Reference - [Authentication](https://docs.clearsky.vision/api-reference/authentication): API key authentication and paid endpoint behavior. - [API Conventions](https://docs.clearsky.vision/api-reference/api-conventions): Request/response conventions and geometry rules. - [Tasking / Order Endpoints](https://docs.clearsky.vision/api-reference/tasking-order-endpoints): Create, estimate, list, and cancel orders. - [Availability Endpoints](https://docs.clearsky.vision/api-reference/availability-endpoints): Date-level and request-level availability checks. - [Processing / Download Endpoints](https://docs.clearsky.vision/api-reference/processing-download-endpoints): Estimate and data retrieval endpoints. - [Account Endpoints](https://docs.clearsky.vision/api-reference/account-endpoints): Account and metadata endpoints. - [Request Limits](https://docs.clearsky.vision/api-reference/request-limits): Throughput and payload constraints. - [Error Codes](https://docs.clearsky.vision/api-reference/error-codes): Error semantics and handling guidance. ## Pricing and Billing - [Pricing Overview](https://docs.clearsky.vision/pricing-billing/pricing-overview): Canonical pricing mechanics summary. - [Model Pricing](https://docs.clearsky.vision/pricing-billing/model-pricing): Model-specific pricing details. - [Monthly Spend Tiers](https://docs.clearsky.vision/pricing-billing/monthly-spend-tiers): Tier-based effective rates. - [Tile and Minitile Discounts](https://docs.clearsky.vision/pricing-billing/tile-minitile-discounts): Relative cost multipliers by order type. - [Order Credits vs Processing Units](https://docs.clearsky.vision/pricing-billing/credits-order-vs-processing-units): Credit model definitions. - [Storage and Extra Requests](https://docs.clearsky.vision/pricing-billing/storage-extra-requests): Storage retention and extra processing requests. - [Subscriptions and Plans](https://docs.clearsky.vision/pricing-billing/subscriptions-plans): Plan and support model details. - [Invoicing / Backwards Payment](https://docs.clearsky.vision/pricing-billing/invoicing-backwards-payment): Invoicing pathway for approved customers. ## Optional - [Full Documentation Index](https://docs.clearsky.vision/llms-full.txt): Expanded page index for deeper retrieval. - [Sitemap XML](https://docs.clearsky.vision/sitemap.xml): Machine-readable full URL inventory.