Claude Desktop (Windows)

Claude Desktop can reach remote MCP servers in two ways: through its Connectors screen, or through its config file. Option A is quicker and the one we recommend; Option B suits you if you would rather manage the server by hand.

Option A, custom connector (recommended)

These are the same steps the OpenFinance app shows on its External AI page. No API key is needed: Claude signs in to your OpenFinance account.

Add custom connector

In Claude Desktop, go to Settings → Connectors and click Add custom connector.

Configure connector

Name it OpenFinance and paste the MCP server URL:

https://api.openfinance.tech/agent/mcp

Connect to OpenFinance

Click Connect on the OpenFinance connector.

Authorize access

When Claude first uses the MCP server, you are sent to OpenFinance. Sign in and click Authorize to give Claude access.

Try it out

Start a new conversation and ask, for example:

“Get the price-implied odds of the Golden State Warriors winning the 2026 NBA playoffs using OpenFinance”
“Check my OpenFinance Wallet balance”

Custom connectors are set up once per Claude account, so the same connector also appears on Claude.ai.

Option B, edit the config file

Prefer a config file? Add the server to claude_desktop_config.json with your API key instead.

Open Developer settings

Open Claude Desktop → Settings → Developer.

Edit config

Click Edit Config. Find claude_desktop_config.json and open it with Notepad or any text editor.

Add the server

You will see something like this:

{
  "preferences": {
    "coworkScheduledTasksEnabled": true,
    "sidebarMode": "task"
  }
}

Add a comma after the preferences closing brace, then paste the mcpServers block:

{
  "preferences": {
    "coworkScheduledTasksEnabled": true,
    "sidebarMode": "task"
  },
  "mcpServers": {
    "openfinance-tech": {
      "type": "http",
      "url": "https://api.openfinance.tech/agent/mcp",
      "headers": {
        "x-api-key": "open_xxxxx"
      }
    }
  }
}

Replace open_xxxxx with your key. Please make an account at openfinance.tech to get your keys.

Close Claude fully

Closing the window leaves Claude running in the system tray. Right-click the Claude icon in the tray, near the clock, and choose Quit.

Reopen and verify

Reopen Claude Desktop. Start a new conversation, you should see a hammer icon in the chat input area.

Make sure the app is fully closed, not just minimized.

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Claude Desktop (Windows)

Option A, custom connector (recommended)

Option B, edit the config file