Home / MCP Tools / Net Present Value (NPV) Calculator
Live MCP toolvaluation

Net Present Value (NPV) Calculator

NPV of a cash-flow series at a discount rate (index 0 = initial outlay).

Free tier eligible — 500 calls/month with a free key from /pricing; x402 pay-per-call above quota.

Parameters

ParameterTypeRequiredDescription
discount_rate_pctnumberrequiredDiscount rate as a PERCENT (10 = 10%)
cash_flowsarrayrequiredArray of cash flows; index 0 is t=0 (often negative)

Call it over MCP (JSON-RPC 2.0)

curl -s https://wingmanprotocol.com/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "npv", "arguments": {"discount_rate_pct": 0.07, "cash_flows": []}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/npv \
  -H 'Content-Type: application/json' \
  -d '{"discount_rate_pct": 0.07, "cash_flows": []}'

Try it live

Edit the JSON and run it — this POSTs to https://wingmanprotocol.com/tools/npv from your browser.

Related tools in Valuation

valuation
M&A Accretion / Dilution Calculator
Pro-forma EPS and accretion/dilution from an acquisition (stock/cash/mixed).
valuation
Enterprise Value & Multiples Calculator
Market cap, enterprise value and EV/EBITDA, EV/Revenue multiples.
valuation
Internal Rate of Return (IRR) Calculator
The discount rate where NPV=0 for a cash-flow series (solved by bisection).