The Hidden Dependency Cost Calculator

 Build an interactive tool that uncovers the hidden financial and operational cost of depending on external services, vendors, libraries, APIs, and third-party platforms.

Allow users to enter dependencies manually or import invoices, subscription exports, package manifests, API usage reports, and vendor contracts. Map each dependency to the products, workflows, teams, and revenue streams that rely on it.

Calculate direct spending alongside estimated migration effort, switching costs, outage exposure, duplicated capabilities, and concentration risk. Separate measurable costs from assumptions and let users adjust scenarios such as a sudden price increase, API deprecation, service outage, or vendor exit.

Generate a dependency map, a ranked cost-reduction plan, and a contingency checklist. Identify where replacing a dependency may cost more than retaining it.

Include sensitivity analysis, ownership assignments, review dates, and CSV/PDF exports. Never invent contract terms or claim an outage probability without supporting evidence.

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