LinkedIn Reply API (Voyager)

Post comments on LinkedIn posts programmatically via LinkedIn's internal Voyager API. No browser clicking or navigation to individual posts needed — just run JavaScript on any linkedin.com page.

Prerequisites

• Chrome browser with LinkedIn open and logged in
• Chrome MCP extension connected (mcp__claude-in-chrome__* tools available)
• Must be on any linkedin.com page (needs session cookies)

Verify Chrome MCP is available:

mcp__claude-in-chrome__tabs_context_mcp

If it errors: tell the user "Chrome MCP isn't connected. Open Chrome with the Claude extension active."