Connecting Claude to the Fusion AI MCP Server

Claude Desktop

Claude Desktop's configuration file lets you add remote MCP servers using a small local bridge process (mcp-remote), which relays traffic between Claude and the hosted server. This is the recommended and confirmed-working setup.

1. Locate your configuration file

Platform	Path
Windows	%APPDATA%\Claude\claude_desktop_config.json
macOS	~/Library/Application Support/Claude/claude_desktop_config.json

If the file doesn't exist yet, create it. You can open the folder directly from Claude Desktop via Settings → Developer → Edit Config.

2. Add the Fusion AI server

Windows:

{
  "mcpServers": {
    "odsl-fusion-ai": {
      "command": "cmd",
      "args": [
        "/c",
        "npx",
        "-y",
        "mcp-remote",
        "https://ai.api.opendatadsl.com/runtime/webhooks/mcp/sse"
      ]
    }
  }
}

macOS / Linux (no cmd /c wrapper is needed outside Windows):

{
  "mcpServers": {
    "odsl-fusion-ai": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://ai.api.opendatadsl.com/runtime/webhooks/mcp/sse"
      ]
    }
  }
}

If you already have other mcpServers entries configured, just add "odsl-fusion-ai" as an additional key rather than replacing the file.

You'll need Node.js installed so that npx is available on your PATH - Claude Desktop launches this command itself, so there's nothing to run manually beyond having Node installed once.

3. Restart Claude Desktop

Fully quit and reopen Claude Desktop (not just close the window) for it to pick up the new configuration.

4. Verify the connection

Open a new chat and check the tools/connectors icon (usually a hammer or plug icon near the message box) - you should see odsl-fusion-ai listed with its tools. If it's not there, see Troubleshooting below.

5. Sign in

Ask Claude something that needs your data, e.g. "What ICE data do we have for Natural Gas?". The first time, Claude will call login_start and give you a code and a link - see Signing In for the full flow.

Claude.ai / native remote connectors

Some Claude plans support adding remote MCP servers directly from Settings → Connectors → Add custom connector, without the mcp-remote bridge, since the server already speaks the remote MCP (SSE) protocol natively. If that option is available to you, you can add:

• Name: OpenDataDSL Fusion AI
• URL: https://ai.api.opendatadsl.com/runtime/webhooks/mcp/sse

and skip the config file entirely. The mcp-remote-based config above is the one that's been confirmed to work end-to-end and is the recommended fallback if a native connector option isn't available on your plan.

Troubleshooting

• Server doesn't appear in the tools list - double check the JSON is valid (no trailing commas, matching braces) and that you fully restarted the app.
• npx / command not found errors - confirm Node.js is installed and npx works from a regular terminal (npx --version).
• Tool calls fail with an authentication error even after signing in - the sign-in session can expire; just ask Claude to sign you in again and it will call login_start again.