Send it your weight; it gets logged.

To get started add the bot as a Telegram contact https://telegram.me/WeightLogBot then send it your weight

/output - Sends you a line chart and a table of your weight
/api - Sends you the link to your JSON API
/help - Gives you help

GET your data out to use as you like:

Endpoint: http://weightlog.ashleyhindle.com/?token=[apitoken]

Go to https://telegram.me/BotFather, send him /newbot and go through the motions until you get a token.

git clone git@github.com:ashleyhindle/weightlog.git; cd weightlog; composer install

Run the bot: TELEGRAM_BOT_TOKEN='tokenfrombotfather' php bot.php

Go to https://telegram.me/[yourbotname] and send it your weight