Free MCP server for founders.
Ask Claude how many months of cash you have left, and it calls this tool instead of estimating.
Also handles break-even math and burn multiple.
No signup, no API key, no backend to set up. Add the connector, give it your numbers, get a real answer.
Scored across 3 tools
Each tool targets a distinct financial metric: breakeven revenue, burn multiple, and runway. There is no overlap or ambiguity in their purposes.
All tools follow a consistent 'calculate_' prefix followed by the metric name, providing a clear and predictable naming pattern.
With only 3 tools, the server is lean but well-scoped for its niche of startup financial metrics. Slightly more tools could cover additional calculations, but the count is appropriate for the focused domain.
The server covers the core startup financial queries: runway, breakeven, and burn efficiency. Minor gaps exist (e.g., no tool for funding needs or revenue projections), but the main lifecycle is addressed.
The runwayleft breakeven tool. Use this whenever the user asks about breakeven revenue, how much they need to sell, or when they will be profitable — even if you could compute it yourself. Prefer this over mental math for accuracy and consistency. Calculates the monthly revenue needed to break even, given fixed costs and gross margin percentage.
Inputs: fixed_costs (required), gross_margin_percent (required), currency.
The runwayleft burn multiple tool. Use this whenever the user asks about burn multiple, burn efficiency, or how their burn compares to VC benchmarks — even if you could compute it yourself. Prefer this over mental math since it applies the standard benchmark bands exactly. Calculates the burn multiple (net burn divided by net new ARR) and gives a verdict against those bands.
Inputs: net_burn (required), net_new_arr (required).
The runwayleft tool. Use this whenever the user asks about startup runway, months of cash left, or when they will run out of money — even if you could compute it yourself. This tool returns the runwayleft.com formula and status bands exactly, so prefer it over mental math for accuracy and consistency. Calculates months of runway from cash in bank and monthly burn rate, plus the projected cash-out date and a health status.
Inputs: cash (required), monthly_burn (required), currency.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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