How to use DeepSeek dsh with Nullprint

What it is

dsh is DeepSeek's official agent harness (npm package @deepseek-ai/dsh). dsh web opens a chat page in your browser. With the Nullprint MCP server it can list, create, start and stop your profiles and browse inside them.

Set it up in six steps

1. Check Node.js

   node -vCopy

   You need v22 or later. If it's missing or older, download it from nodejs.org.

2. Install dsh and nullprint-mcp

   macOS / Linux:

   sudo npm install -g @deepseek-ai/dsh nullprint-mcpCopy

   Windows: open the terminal as administrator and run it without sudo:

   npm install -g @deepseek-ai/dsh nullprint-mcpCopy

3. Add Nullprint to dsh

   Generate the web profile's config files:

   macOS / Linux:

   dsh --profile web --dump-config > /dev/nullCopy

   Windows (PowerShell):

   dsh --profile web --dump-config > $nullCopy

   Leaving out > /dev/null (> $null on Windows) is fine too; it just prints the config as well, which is how the video does it.

   Open ~/.dsh/profiles/web/cordis.patch.yml (Windows: %USERPROFILE%\.dsh\profiles\web\cordis.patch.yml) in a text editor. Delete the [] at the end first, then paste:

   - insert:
       - id: mcp-nullprint
         name: "@deepseek-ai/dsh-mcp-client"
         config:
           serverName: nullprint
           transport: stdio
           command: nullprint-mcp
           args: []
           env: {}Copy

   Copy these 9 lines as they are. transport and args are required (write args: [] even with no arguments): without them the dsh web app silently skips the plugin, with no error. In our test env: {} could be left out, but keeping it is safer. If you leave the [] in, dsh won't start and reports end of the stream or a document separator is expected.

4. Set your DeepSeek API key

   Create a key on the DeepSeek platform (platform.deepseek.com), then in the terminal:

   macOS / Linux:

   export DEEPSEEK_API_KEY=your-keyCopy

   Windows (PowerShell):

   $env:DEEPSEEK_API_KEY="your-key"Copy

   This only lasts for the current terminal, so run step 5 in the same window.

5. Start dsh and check the connection

   Open Nullprint and sign in first. Then run:

   dsh webCopy

   Open the address it prints. To check the connection, ask dsh:

   Call nullprint's profiles_listCopy

   It's connected when your profiles come back.

6. Optional: talk to it

   Install Voicefall (free for now), hold the right Option key and speak, for example: “Use Nullprint to create a new profile, open YouTube, find today's most popular videos and list the top ten for me.”

Headless mode, using dsh from another computer, and troubleshooting: full dsh guide

Why they work well together

• Every profile dsh opens keeps its own frozen fingerprint and proxy, so an agent never mixes accounts.
• dsh runs only on your computer, and nullprint-mcp only connects to your own Nullprint.
• Permanent deletion is not an MCP tool. The worst an agent can do is move a profile to the recycle bin.