@2hdlockness
That error is just log noise. It doesn’t affect anything.

Hi everyone,

I’d like to share a module I’ve been working on: MMM-Fintech – a portfolio display module that shows your financial holdings with real-time pricing. I built it to fill my needs. I took a modular approach that would allow writing additional connectors for other data sources.

Screenshot

Features

• Multi-Asset Support: Crypto, stocks, ETFs, mutual funds, and forex rates in one unified display
• Coinbase Integration: Automatically fetches crypto holdings via CDP API
• Twelve Data Integration: Real-time pricing for stocks, ETFs, mutual funds, and forex
• Manual Holdings: Add staked assets or brokerage positions that APIs can’t see
• Market Hours Scheduling: Limits stock/forex polling to trading hours to conserve API calls
• Privacy Mode: Hide quantities and values – show only symbols, prices, and changes
• Currency Conversion: Display values in USD, EUR, GBP, PHP, or other currencies
• Encrypted Credentials: AES-256-GCM encryption for your API keys

Links

• GitHub: https://github.com/sonnyb9/MMM-Fintech
• Installation & Setup: See the README for step-by-step instructions

Requirements

• Coinbase CDP API key (free, for crypto)
• Twelve Data API key (free tier: 800 calls/day, for stocks/forex)

License

MIT

Feedback Welcome

This is my first MagicMirror module. I’d appreciate any feedback, bug reports, or feature suggestions. Feel free to open issues on GitHub or reply here.

Thanks!​​​​​​​​​​​​​​​​

I’ve released v0.8.0. Here’s the release notes:

[0.8.0] - 2026-01-09

Added

• Portfolio Performance Charts: Visual tracking of portfolio value over time
  • Area chart with gradient fill
  • Hourly snapshots (rolling 48 hours) for 1D view
  • Daily snapshots for 1W, 1M, 3M, 1Y, All views
  • Chart.js integration via CDN
• Chart Configuration Options:
  • showCharts - Enable chart display (default: false)
  • chartMode - “combined” / “separate” / “exclude-crypto”
  • chartPeriod - “1D” / “1W” / “1M” / “3M” / “1Y” / “All”
  • showPeriodSelector - Show period buttons for touch devices (default: false)
  • historyRetention - Days to retain daily history (default: 1825 / 5 years)
• History Storage: Local history.json file for snapshot data
  • ~600 bytes per snapshot (10 holdings)
  • ~250 KB after 1 year, ~1.1 MB after 5 years

Changed

• Price updates now record hourly snapshots for chart data
• Holdings sync now records daily snapshots for chart data

@2hdlockness
That error is just log noise. It doesn’t affect anything.

@htilburgs I second MMM-Pages, its useful. The config takes a little getting used to. You’ll need to add classes to modules to specify which page the they land on.

I’ve released v0.8.0. Here’s the release notes:

[0.8.0] - 2026-01-09

Added

• Portfolio Performance Charts: Visual tracking of portfolio value over time
  • Area chart with gradient fill
  • Hourly snapshots (rolling 48 hours) for 1D view
  • Daily snapshots for 1W, 1M, 3M, 1Y, All views
  • Chart.js integration via CDN
• Chart Configuration Options:
  • showCharts - Enable chart display (default: false)
  • chartMode - “combined” / “separate” / “exclude-crypto”
  • chartPeriod - “1D” / “1W” / “1M” / “3M” / “1Y” / “All”
  • showPeriodSelector - Show period buttons for touch devices (default: false)
  • historyRetention - Days to retain daily history (default: 1825 / 5 years)
• History Storage: Local history.json file for snapshot data
  • ~600 bytes per snapshot (10 holdings)
  • ~250 KB after 1 year, ~1.1 MB after 5 years

Changed

• Price updates now record hourly snapshots for chart data
• Holdings sync now records daily snapshots for chart data

@scottwalsh I fixed the screenshot.

I also released a new v0.6.0 of MMM-Fintech with Snaptrade support. It can replace the Coinbase free API and TwelveData API while providing better holdings data. Coinbase was reporting staked crypto holdings as $0 balance forcing the use of a manual_holdings.json file. Snaptrade is pay as you go, so I left coinbase, TwelveData, and the manual holding options in place as free options. I’m still using TwelveData for pricing updates since it’s free for up to 800 queries per day.

I’m working on a patch to add snap trade support. A snaptrade branch should appear in my repo in the next day or two. Thanks for the suggestion!

@scottwalsh I’m glad my little fix was helpful in finding a solution.

@scottwalsh Interesting idea, I’ll have a look at that. I was thinking about using Plaid, but it would cost money and I’m frugal :)

@scottwalsh I’m not sure. I haven’t tried since last month. Yahoo_finance API is a moving target. I’ve been busy writing my own stock, crypto and forex module after yahoo_finance2 last annoyed me.

Hi everyone,

I’d like to share a module I’ve been working on: MMM-Fintech – a portfolio display module that shows your financial holdings with real-time pricing. I built it to fill my needs. I took a modular approach that would allow writing additional connectors for other data sources.

Screenshot

Features

• Multi-Asset Support: Crypto, stocks, ETFs, mutual funds, and forex rates in one unified display
• Coinbase Integration: Automatically fetches crypto holdings via CDP API
• Twelve Data Integration: Real-time pricing for stocks, ETFs, mutual funds, and forex
• Manual Holdings: Add staked assets or brokerage positions that APIs can’t see
• Market Hours Scheduling: Limits stock/forex polling to trading hours to conserve API calls
• Privacy Mode: Hide quantities and values – show only symbols, prices, and changes
• Currency Conversion: Display values in USD, EUR, GBP, PHP, or other currencies
• Encrypted Credentials: AES-256-GCM encryption for your API keys

Links

• GitHub: https://github.com/sonnyb9/MMM-Fintech
• Installation & Setup: See the README for step-by-step instructions

Requirements

• Coinbase CDP API key (free, for crypto)
• Twelve Data API key (free tier: 800 calls/day, for stocks/forex)

License

MIT

Feedback Welcome

This is my first MagicMirror module. I’d appreciate any feedback, bug reports, or feature suggestions. Feel free to open issues on GitHub or reply here.

Thanks!​​​​​​​​​​​​​​​​

@sdetweil That was my pull request. It needed to be updated to work with yahoo-finance2 v3. I got that working on my pi5. Have a look at the fix in my repo:
https://github.com/sonnyb9/MMM-AVStock/tree/fix-yahoo-finance-v3

Thanks
SB