Signal and Claude Code

Black Duck Signal

How to register the Black Duck MCP server with Claude.

Note: Available with: Signal Developer and Signal Enterprise.

Prerequisites:

Node.js 24 or higher. If you need to download Node.js, see Node.js download.
Claude Code. If you need to install Claude, see Claude Code - Quickstart.
A Signal Enterprise or Developer subscription.

Follow the steps to register Black Duck's MCP server for Claude Code:

Install with CLI commands
```
$ claude mcp add black-duck --transport stdio --scope user --env BLACKDUCK_MCP_GATEWAY_KEY=YOUR_LLM_API_KEY -- npx @black-duck/mcp-server@latest
```
About this codeblock:
- This two-part instruction stores the MCP configuration in Claude’s system, then uses NPX to install and run the Black Duck MCP server and establish communication between the two.
- Be sure to substitute your API key environment variable after key=.
- Including --scope user sets the MCP at the user level and not system-wide. This prevents other users from accessing the MCP server with your credentials.

Verify your setup

Start Claude Code.
```
$ claude
```
Ask Claude to scan some of your files using Black Duck.

Alternative installation methods

If this method didn't work for you, or you prefer a different method, see installing MCP servers.