---
title: "Windsurf MCP Setup: Bank Data in Cascade | BankBridge"
description: "Ask Windsurf's Cascade agent where your money went last month. One entry in mcp_config.json connects your bank, about a 2-minute setup."
url: "https://bankbridge.money/docs/windsurf"
---
[← All integrations](https://bankbridge.money/docs)

Windsurf

# Add to mcp\_config.json.

Windsurf’s Cascade agent reads a JSON config file. One gotcha: the field is `serverUrl`, not `url`.

Step 01

## Edit ~/.codeium/windsurf/mcp\_config.json.

~/.codeium/windsurf/mcp\_config.json

```
{
  "mcpServers": {
    "bankbridge": {
      "serverUrl": "https://bankbridge.money/api/mcp",
      "headers": {
        "Authorization": "Bearer bbk_your_api_key_here"
      }
    }
  }
}
```

Restart Windsurf after editing the config.

Windsurf also supports `${env:VAR}`interpolation if you’d rather not hardcode tokens.

Step 02

## Verify it works.

Reload Cascade, then ask:

try this

```
what are my recurring subscriptions?
```

Troubleshooting

Client connects but shows 0 tools.

Usually the client is caching an old config, or you're on a mode that doesn't expose tools (Ask/Edit vs Agent, for example).

**Fix:** Fully quit + relaunch the host app. In VS Code Copilot, switch to Agent mode.

401 Unauthorized on every call.

The API key is missing, typo'd, or got revoked. Check the Authorization header starts with \`Bearer \` (note the space) and ends in a key you still own.

**Fix:** Paste a fresh key from [Settings](https://bankbridge.money/dashboard/settings).

Tools return a NO\_CONNECTIONS warning.

You haven't linked a bank yet.

**Fix:** Visit [Connect a bank](https://bankbridge.money/dashboard/connect) . The bank-connect flow opens automatically, ~30 seconds.

Problems? Email [hello@bankbridge.money](mailto:hello@bankbridge.money).