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mcp/harbor
Grok

CanUSign for Grok

io.github.devin-lemcke/canusign-mcp-server

Create PDF contracts, send signing links and check signature status with CanUSign e-signatures.

client:Grok transport:stdio runtime:npm

Install CanUSign in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "canusign-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "canusign-mcp-server"
      ],
      "env": {
        "CANUSIGN_API_KEY": "<CANUSIGN_API_KEY>",
        "CANUSIGN_API_URL": "<CANUSIGN_API_URL>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

CanUSign in other clients

CanUSign MCP server