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The Deepline plugin gives Claude Cowork access to the Deepline skill and CLI. Use the plugin to start a Play or call a tool from a Cowork session.

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Before you start

You need Claude Desktop with access to Cowork. You also need a project folder that Cowork can use. Deepline stores project authentication in this folder. Open future Cowork sessions with the same folder to reuse the login. Deepline calls live APIs. Cowork must have network access for these calls.

Install the Claude Cowork plugin

Use the complete install steps in the main Quick Start.

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Install the plugin

  1. Open Claude Desktop and select Cowork.
  2. Open Customize in the left sidebar.
  3. Select the + next to Personal plugins.
  4. Select Create plugin, then select Add marketplace.
  5. Add this marketplace:
  6. Install the deepline plugin.
  7. Start a Cowork session and select your project folder.
The first Deepline command can install the CLI in the Cowork sandbox. This is expected. Let the command finish before you run a second request.

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Allow API access

In Claude Desktop, open Settings -> Capabilities. Turn on Allow network egress. Set Domain allowlist to All domains. A restricted list can block a provider that your workflow needs. Cowork network egress set to all domains

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Run a first workflow

Enter this request in Cowork:
Deepline can ask you to approve browser authorization. Open the link and approve the request. The agent does not need your secret. After approval, run the request again if Cowork returned before authorization finished. Start with a small result set. Check the output fields and provider costs. Then increase the row count.

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Troubleshoot

If a live API call fails, first confirm that network egress is on. If Deepline asks for authorization again, confirm that the session uses the same project folder as the first session. If setup reports a CLI problem, ask Cowork to run:
Use the exact next action in the JSON response. Do not create a new setup when the response says that authorization is pending. On Team and Enterprise plans, an organization owner can control Cowork and network access. Ask the owner to enable Cowork and the required domains if the settings are locked.