Cline

Checked on 2026-11-06 against docs.cline.bot: configuring MCP servers and skills. An API key header is supported.

Connect

Create a key (how). In the extension, open Configure → Configure MCP Servers (the CLI uses ~/.cline/data/settings/cline_mcp_settings.json) and add:

{
  "mcpServers": {
    "crossmart": {
      "type": "streamableHttp",
      "url": "https://mcp.crossmart.io/mcp",
      "headers": { "x-api-key": "cm_…" },
      "disabled": false,
      "autoApprove": []
    }
  }
}

Set "type": "streamableHttp" explicitly: without it Cline uses the legacy SSE transport. The docs don’t document environment variables in headers, so paste the key itself. Keep autoApprove empty, or list only read-only tools, so Cline asks before changing your catalog.

Check

The MCP Servers view shows crossmart connected, with its tools.

Install the skill

git clone --depth 1 https://github.com/crossmart-io/crossmart.git /tmp/crossmart
cp -R /tmp/crossmart/skills/crossmart ~/.cline/skills/        # or .cline/skills/ in a project

The repository is private for now; see the Crossmart skill.