Srofia apps for ChatGPT

Two small, read-only calculators by Srofia that run inside ChatGPT.

Untilfree

A FIRE and retirement calculator: when you can retire, how much you need to retire at a given age, coast, lean, barista and fat FIRE numbers, how long savings last, and how a purchase moves your freedom day.

MCP endpoint: https://untilfree.mcp.srofia.com/mcp (also https://mcp.srofia.com/untilfree/mcp)

SentryFi

Who is on my Wi-Fi, is this hotel or café Wi-Fi safe, and is my home Wi-Fi secure or hacked: names the makers of devices on your network from the first 6 characters of their MAC addresses, scores public Wi-Fi risk with who can see what, and gives ranked steps to lock down your router.

MCP endpoint: https://sentryfi.mcp.srofia.com/mcp (also https://mcp.srofia.com/sentryfi/mcp)

Try it

The endpoints speak MCP over Streamable HTTP (POST). List the tools:

curl -s -H 'content-type: application/json' \
  -H 'accept: application/json, text/event-stream' \
  https://sentryfi.mcp.srofia.com/mcp \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Calculate a freedom day:

curl -s -H 'content-type: application/json' \
  -H 'accept: application/json, text/event-stream' \
  https://untilfree.mcp.srofia.com/mcp \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"calculate_freedom_day","arguments":{"age":30,"netWorth":20000,"monthlyInvestment":800,"monthlyExpenses":3000,"currency":"USD"}}}'