College Savings Calculator

Project the future cost of college with education inflation and the monthly contribution needed to fund it.

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

Parameters

Parameter	Type	Required	Description
`current_cost_per_year`	number	required	Today's cost for one year of college in USD
`years_until_college`	number	required	Years until college starts
`years_in_college`	integer	optional	Number of years in college (default 4)
`education_inflation`	number	optional	Annual education inflation as a PERCENT (default 5)
`current_savings`	number	optional	Amount already saved in USD
`investment_return`	number	optional	Expected annual return on savings as a PERCENT (default 6)

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": "college_savings", "arguments": {"current_cost_per_year": 100, "years_until_college": 30}}}'

Or plain HTTP

curl -s https://wingmanprotocol.com/tools/college_savings \
  -H 'Content-Type: application/json' \
  -d '{"current_cost_per_year": 100, "years_until_college": 30}'

Try it live

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

This tool is x402-metered — agents pay per call with USDC on Base. The 402 response below is the standard x402 payment-requirements envelope: sign the EIP-3009 authorization and retry with the X-Payment header, or get a free key at /pricing (500 calls/month, no card, no crypto).