becu-mcp

An MCP (Model Context Protocol) server that provides read-only access to your BECU accounts via browser automation. Use it with Claude Code or any MCP-compatible client to query account balances and transaction history conversationally.

What it does

Exposes three tools:

Authentication is handled automatically using Playwright to drive a Chromium browser. Sessions are persisted to session.json so subsequent calls run headlessly. If the session expires or MFA is required, a visible browser window opens for you to complete login.

Installation

Prerequisites

• Python 3.11+

• uv or pip

Steps

1. Clone the repository:

   git clone https://github.com/jrolstad/becu-mcp.git
   cd becu-mcp

2. Install dependencies:

   pip install -r requirements.txt

3. Install Playwright's Chromium browser:

   playwright install chromium

4. Set your BECU credentials using one of the two options below.

Configure with Claude Code

Add the server to your Claude Code MCP settings (~/.claude.json under mcpServers). Credentials can be provided in the MCP config directly (recommended) or via a .env file.

Option A — credentials in MCP config (recommended)

Pass credentials as environment variables in the MCP server entry. This keeps everything in one place and avoids needing a .env file on disk.

{
  "mcpServers": {
    "becu": {
      "type": "stdio",
      "command": "python",
      "args": ["/path/to/becu-mcp/server.py"],
      "env": {
        "BECU_USERNAME": "your_username_here",
        "BECU_PASSWORD": "your_password_here"
      }
    }
  }
}

Option B — .env file

Create a .env file in the repo directory:

cp .env.example .env

Then edit .env:

BECU_USERNAME=your_username_here
BECU_PASSWORD=your_password_here

The server loads this automatically via python-dotenv on startup. The .env file is gitignored.

Usage

Once connected, you can ask Claude things like:

• "List my BECU accounts with their balances"

• "What are the last 20 transactions from My Checking?"

• "What's the balance on my savings account?"

• "How much YTD interest has the Annual Payments savings account earned?"

Authentication and sessions

• On first run, a Chromium browser window opens and logs in with your credentials.

• If MFA is required, you have 60 seconds to complete it in the browser window.

• After a successful login, cookies are saved to session.json for future headless runs.

• If a session expires, the browser window opens again automatically.

• session.json is gitignored — do not commit it.

Development

Project structure

becu_client.py   # Playwright scraping and HTML parsing logic
server.py        # MCP server (FastMCP) — exposes tools to MCP clients
requirements.txt # Python dependencies
.env.example     # Credential template
session.json     # Persisted browser session cookies (gitignored)

How scraping works

becu_client.py uses Playwright to load pages from onlinebanking.becu.org, then parses the HTML with BeautifulSoup. The BECU pages use a Tablesaw responsive table library that embeds column labels inside each <td> as <b class="tablesaw-cell-label"> elements. The parser extracts these labels to identify each cell's field regardless of column order, making it resilient to layout changes.

Key functions:

• _get_page_html() — fetches a page, handles auth/session management

• _cell_label_and_value() — extracts the field label and value from a tablesaw <td>

• _parse_currency() — converts "$1,234.56" to 1234.56

• get_accounts() — scrapes the Summary page, deduplicates by account number

• get_transactions() — scrapes the Activity page, filters out summary/non-transaction rows

Running locally

python server.py

Or via the MCP CLI:

mcp dev server.py

Adding new tools

1. Add a new async function to becu_client.py that fetches and parses the relevant BECU page.

2. Register it as a tool in server.py using the @mcp.tool() decorator.

3. Reconnect your MCP client to pick up the new tool.

Dependencies