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

# Claude Desktop

> Route Claude Desktop's Cowork through Concentrate using the third-party platform gateway.

<Info>
  Claude Desktop's Cowork third-party platform support lets you point Claude at any Anthropic-compatible gateway — including Concentrate — for centralized billing, observability, and access to our full [model fortress](https://concentrate.ai/models).
</Info>

## Concentrate and Claude Desktop

Claude Desktop ships with a Cowork integration that can connect to third-party platforms. By configuring Concentrate as the gateway, every model request from Claude Desktop is routed through your Concentrate account.

### Unified Spend Management

Concentrate gives you centralized budget management for teams and companies. Set spend limits, manage usage across team members, and avoid unexpected cost overruns from a single dashboard.

### Observability and Insights

Track usage, spend, providers, models, latency, and other key metrics across your organization in the Concentrate dashboard.

### Model Selection

Configure any model from Concentrate's [model fortress](https://concentrate.ai/models) inside Claude Desktop's Identity & Models section, including non-Anthropic providers.

<Info>
  Tip: Any model that is compatible with Claude Code can be used with Claude Desktop/Cowork. We recommend you to use models that have a `High` compatibility level with Claude Code.
</Info>

## Prerequisites

Before you begin, ensure you have:

* A Concentrate AI account with an active API key (starts with `sk-cn`)
* Claude Desktop installed with Cowork available — see Anthropic's [installation guide](https://claude.com/docs/cowork/3p/installation)

## Setup

<Steps>
  <Step title="Open Cowork third-party platform settings">
    Follow Anthropic's [Install and configure Claude Cowork with third-party platforms](https://support.claude.com/en/articles/14680741-install-and-configure-claude-cowork-with-third-party-platforms) guide to open the gateway configuration in Claude Desktop.
  </Step>

  <Step title="Configure the gateway">
    Fill in the gateway fields as follows:

    | Field                     | Value                                          |
    | ------------------------- | ---------------------------------------------- |
    | **Gateway base URL**      | `https://api.concentrate.ai`                   |
    | **Gateway API key**       | Your Concentrate API key (starts with `sk-cn`) |
    | **Gateway auth scheme**   | `bearer` (leave as default)                    |
    | **Gateway extra headers** | Leave empty                                    |
  </Step>

  <Step title="Add models in Identity & Models">
    In the **Identity & Models** section, add any `provider/model` slug from Concentrate's [models endpoint](/docs/api-reference/endpoint/list-models), such as:

    ```text theme={null}
    anthropic/claude-sonnet-4-6
    ```

    Repeat to add as many models as you'd like.

    <Warning>
      Only enable **Offer 1M-context variant** for models we officially support at 1M context:

      * `anthropic/claude-opus-4-6`
      * `anthropic/claude-opus-4-7`
      * `anthropic/claude-sonnet-4-6`

      Enabling it on other models may cause requests to fail.
    </Warning>
  </Step>

  <Step title="Apply configuration">
    You can apply your configuration locally (only on your machine) or deploy it via an MDM - refer to [Anthropic's guide](https://claude.com/docs/cowork/3p/installation#3-export-for-mdm)
    for detailed instructions on how to export for MDM. If you encounter any issues or quirks, feel free to contact us at [support@concentrate.ai](mailto:support@concentrate.ai)
  </Step>
</Steps>

## Verify Configuration

Open a new chat in Claude Desktop, select one of the models you added, and send a quick prompt. If the response comes back successfully, your gateway is configured correctly. Usage will appear in your Concentrate dashboard in real time.

## Troubleshooting

<AccordionGroup>
  <Accordion title="Authentication failed" icon="key">
    Confirm your Concentrate API key is valid and pasted in full into the **Gateway API key** field. The key should start with `sk-cn`. Ensure **Gateway auth scheme** is set to `bearer`.
  </Accordion>

  <Accordion title="Connection or endpoint errors" icon="wifi">
    Verify the **Gateway base URL** is exactly `https://api.concentrate.ai` with no trailing slash, path, or extra spaces.
  </Accordion>

  <Accordion title="Model not responding or returns an error" icon="robot">
    1. Confirm the model slug uses the `provider/model` format exactly (e.g. `anthropic/claude-sonnet-4-6`), not just the model name
    2. If you enabled **Offer 1M-context variant**, confirm the model is one of the supported 1M variants listed above
    3. Check the [models endpoint](/docs/api-reference/endpoint/list-models) to verify the slug is available on your account
  </Accordion>
</AccordionGroup>

## Next Steps

<CardGroup cols={2}>
  <Card title="API Reference" icon="code" href="/docs/api-reference/introduction">
    Explore all endpoints and request options
  </Card>

  <Card title="Available Models" icon="layer-group" href="/docs/api-reference/endpoint/list-models">
    Browse the full model catalog
  </Card>

  <Card title="Cowork 3P Installation" icon="book" href="https://claude.com/docs/cowork/3p/installation">
    Anthropic's third-party platform installation guide
  </Card>

  <Card title="Get Support" icon="life-ring" href="mailto:support@concentrate.ai">
    Contact our support team
  </Card>
</CardGroup>