Fintech Hub lets developers write Python functions once and reuse them anywhere

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A developer frustrated by repeatedly copy-pasting helper functions across notebooks and scripts built Fintech Hub, a free online library for personal Python functions. Users write and test functions in a browser-based editor, publish them with one click, and call them from any Python environment — including Jupyter, Google Colab, and VS Code — via a lightweight PyPI package. Bug fixes made on the platform propagate instantly to all connected notebooks and scripts without manual updates. Functions are private by default, accessible only via a personal API key, and all code executes in the user's local Python environment rather than on a remote server. The tool is available for free at royalfintech.net/fintech-hub, with the client installable via pip.

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