the legal bit
Terms of Service
Short version: Sylvester is free, open-source software under the MIT License, provided as-is. It shows you your own brokerage data, read-only — it is not financial advice, and it can't touch your money. The details are below.
Last updated · 12 September 2026
Using Sylvester
- It's free. No purchase, no subscription, and no Sylvester account.
- Open source. The full source is public on GitHub — you're welcome to read it, build it, and contribute.
- Your SnapTrade account is yours. Sylvester connects to brokerage data through SnapTrade; your use of SnapTrade and of your brokerages is governed by their own terms, not these.
License
Sylvester's source code is released under the MIT License: you're free to use, copy, modify, and distribute it, provided the copyright notice and license text travel with it. The full text lives in the LICENSE file.
Not financial advice
Sylvester displays information from your linked accounts for your own reference. It is not investment, financial, tax, or legal advice, and nothing it shows is a recommendation to buy, sell, or hold anything.
- Figures can be delayed or incomplete. Balances move at your brokerages' sync cadence, quotes and exchange rates come from third-party feeds, and currency conversion is approximate. Verify anything that matters with your brokerage directly.
- Read-only by construction. Sylvester's access is scoped so it cannot place trades or move money — but the numbers on screen are a view, not a source of truth.
No warranty
Sylvester is provided "as is", without warranty of any kind, express or implied — including but not limited to merchantability, fitness for a particular purpose, and non-infringement. You use it at your own risk.
Limitation of liability
To the fullest extent permitted by law, the authors and contributors are not liable for any claim, damages, or other liability — including any financial loss or decision made in reliance on displayed data — arising from the use of Sylvester or this website.
Third-party services
Sylvester relies on services it doesn't control: SnapTrade (account data and sign-in), GitHub (source and downloads), Homebrew (installation), Yahoo Finance (quotes), frankfurter.dev (exchange rates), and Cloudflare (this website). Your use of each is governed by its own terms, and we're not responsible for their content or availability.
Changes to these terms
These terms may change over time. The date at the top reflects the latest version, and the full history is public in the project repository.