> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tensor9.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cloud Adapter Overview

> Use familiar cloud APIs with services in another cloud.

Tensor9 Cloud Adapter connects the cloud APIs your application uses to services in another cloud. A service adapter accepts supported requests, translates them into backend operations, and returns responses in the format your client expects.

For example, an application using the Amazon S3 API can store its objects in Google Cloud Storage through an S3 service adapter. The origin API stays familiar; the target service stores the objects.

<div className="t9-overview-hero">
  <div className="t9-diagram-light">
    <img className="t9-hero-wide" src="https://mintcdn.com/tensor9/3qwgIru3kCfHriJC/images/diagrams/cloud-adapter-light.png?fit=max&auto=format&n=3qwgIru3kCfHriJC&q=85&s=5d6a6d5ef18025a09437ee7917c172dd" alt="Tensor9 Cloud Adapter adapts an application's origin-cloud API to services in a destination cloud." width="4996" height="2520" data-path="images/diagrams/cloud-adapter-light.png" />

    <img className="t9-hero-stacked" src="https://mintcdn.com/tensor9/3qwgIru3kCfHriJC/images/diagrams/cloud-adapter-light.png?fit=max&auto=format&n=3qwgIru3kCfHriJC&q=85&s=5d6a6d5ef18025a09437ee7917c172dd" alt="Tensor9 Cloud Adapter adapts an application's origin-cloud API to services in a destination cloud." width="4996" height="2520" data-path="images/diagrams/cloud-adapter-light.png" />
  </div>

  <div className="t9-diagram-dark">
    <img className="t9-hero-wide" src="https://mintcdn.com/tensor9/3qwgIru3kCfHriJC/images/diagrams/cloud-adapter-dark.png?fit=max&auto=format&n=3qwgIru3kCfHriJC&q=85&s=028cc407f8e4419b16047bb30459a2d7" alt="Tensor9 Cloud Adapter adapts an application's origin-cloud API to services in a destination cloud." width="4998" height="2518" data-path="images/diagrams/cloud-adapter-dark.png" />

    <img className="t9-hero-stacked" src="https://mintcdn.com/tensor9/3qwgIru3kCfHriJC/images/diagrams/cloud-adapter-dark.png?fit=max&auto=format&n=3qwgIru3kCfHriJC&q=85&s=028cc407f8e4419b16047bb30459a2d7" alt="Tensor9 Cloud Adapter adapts an application's origin-cloud API to services in a destination cloud." width="4998" height="2518" data-path="images/diagrams/cloud-adapter-dark.png" />
  </div>
</div>

The diagram shows the adaptation model, not an all-to-all compatibility promise. Coverage is directional and specific to each service, backend and operation. Start with the service reference under each cloud in the sidebar to check your workload.

## Start with one service

Choose the origin service your application calls, then a supported backend. Check the operations you actually use, authentication requirements and documented behavioral differences. Protocol compatibility does not imply identical authorization, consistency or limits.

Use a single service adapter for a focused integration. A cloud adapter brings multiple service adapters together for one origin-to-target cloud direction, with shared configuration and deployment choices.

## Choose a workflow

<CardGroup cols={2}>
  <Card title="Use an existing cloud tool" icon="terminal" href="/cloud-adapter/guides/index">AWS CLI, SDKs, Terraform/OpenTofu, Pulumi and other API clients can use the origin endpoint.</Card>
  <Card title="Build a cloud adapter" icon="rocket-launch" href="/cloud-adapter/getting-started/overview">Prepare configuration, identities and a bounded verification before expanding the workload.</Card>
</CardGroup>

The [Guides](/cloud-adapter/guides/index) section starts with the AWS CLI because it makes the request boundary visible. The [Getting Started](/cloud-adapter/getting-started/overview) section describes the complete installation journey.

## Understand and operate the adaptation

<CardGroup cols={2}>
  <Card title="How it works" href="/cloud-adapter/how-it-works">Follow a request from its origin API to its backend.</Card>
  <Card title="Plan your setup" href="/cloud-adapter/getting-started/overview">Check coverage and prepare configuration, identity and networking.</Card>
  <Card title="Tune behavior" href="/cloud-adapter/tuning/overview">Understand tuning tags, supported target fields and how to measure a change.</Card>
  <Card title="Debug a request" href="/cloud-adapter/debugging/overview">Capture response evidence and build a safe reproduction.</Card>
</CardGroup>

Use [High Fidelity Cloud Emulators](/cloud-adapter/local-testing/overview) to exercise supported behavior before testing against the real backend. For software delivery into another organization's infrastructure, see [Tensor9 BYOC](/byoc/index).