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Connect Cursor to Aries so you can use the Aries API (portfolio, market data, orders) from Cursor. Add the Aries MCP server in mcp.json, restart Cursor, then click Connect - your browser opens, Aries asks for your Client ID, and you sign in with your Aries credentials and grant access.

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What you need

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Step 1: Get your Client ID (common for all platforms)

You need a Client ID from Client Center / Manage Account. You enter it in the browser when you click Connect and Aries asks for it. Do this first: Create an OAuth app in Client Center / Manage Account. When creating the key, set the OAuth redirect URI to https://mcp.aries.com/auth/callback. Copy your Client ID.

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Step 2: Add the Aries MCP server

  1. Open Cursor and go to Settings (Cmd+, on macOS or Ctrl+, on Windows/Linux).
  2. In the left sidebar, open Tools & MCP (or Features -> MCP).
  3. Click Add new MCP server (or Add MCP server). A file named mcp.json opens (often in your project as .cursor/mcp.json or in Cursor’s config folder).
  4. Use the config below. If the file already has other servers, add only the aries block inside mcpServers. Use ~/.cursor/mcp.json to make Aries available in every project, or .cursor/mcp.json for a single project.
  1. Save the file.
  2. Restart Cursor completely (quit and reopen). MCP servers load only at startup.
To skip the Client ID page when you connect, add "auth": { "CLIENT_ID": "YOUR_CLIENT_ID" } to the aries block.
The URL must be exactly https://mcp.aries.com/mcp (no trailing slash). The redirect URI is only for Client Center / Manage Account when you create the key.

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Step 3: Click Connect, then open the OAuth URL

After restarting, the Aries server appears in Settings -> Tools & MCP with a Connect button (or Needs authentication).
  1. Open Settings -> Tools & MCP and find the Aries entry.
  2. Click Connect (or the Needs authentication link). In some Cursor versions the browser does not open automatically; instead Cursor shows an “Open the URL” (or similar) notification.
  3. Click that notification (or the link in it) to open the OAuth URL in your browser. The Aries OAuth screen (sign-in and consent page) opens.
  4. If Aries asks for your Client ID on the Enter your Aries Client ID page, paste your Client ID from Step 1 and click Continue.
  5. Sign in with your Aries email and password, then click Allow or Approve to grant access. Same OAuth flow as other platforms.
If the browser doesn’t open by itself: In some Cursor versions, clicking Connect / “Needs authentication” does not open the browser automatically. Cursor shows an “Open the URL” (or similar) notification instead. Click that notification (or the link in it) to open the OAuth URL - then the same sign-in and Allow flow applies.
First-time permission grant: This screen appears only the first time. If you close it without clicking Allow, it may not appear again. Complete sign-in and click Allow or Approve before closing the tab.
After you approve, the MCP gateway completes the token exchange. You’ll see a success message or return to Cursor.

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Step 4: You’re connected

Cursor can now use the Aries API via the MCP server. You can ask for portfolio info, market data, or to place orders within Cursor’s AI features.

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Troubleshooting

More help: OAuth2 Guide - Troubleshooting.

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Next steps

MCP Authentication

Common steps and all supported platforms.

Claude.ai (Web)

Connect Claude in the browser to Aries.

ChatGPT

Connect ChatGPT to Aries via MCP app.

Perplexity

Connect Perplexity to Aries via MCP.

Microsoft Copilot Studio

Add Aries MCP tool in Copilot Studio.