Install AgentSEO in Cline

What you need first

• Cline, installed.
• Nothing else: the server runs on its publisher's machines and Cline connects to it.
• Your own value for YOUR_X_API_KEY.

Steps

1. In Cline, open the MCP Servers icon, then the Configure tab, and choose Configure MCP Servers. It opens cline_mcp_settings.json.
2. Add this block. If the file already has mcpServers, add only the entry inside it.

{
  "mcpServers": {
    "agentseo-mcp": {
      "type": "streamableHttp",
      "url": "https://www.agentseo.dev/mcp",
      "headers": { "x-api-key": "YOUR_X_API_KEY" }
    }
  }
}

3. Replace YOUR_X_API_KEY with your own value.
4. Save the file. Cline reloads it and lists the server under MCP Servers.

Check it worked

Ask Cline: List the tools of agentseo-mcp.

If it does not start

401 Unauthorized

The endpoint wants a sign-in or a key. Sign in when Cline asks, or check the value in place of the placeholder.

The server starts, but its tools fail

A YOUR_… placeholder is still in the config, or its value is wrong.

Nothing changes after a restart

The file is not valid JSON any more. Look for a missing comma where the block was added.