binlist.net is a public web service for looking up credit and debit card metadata.

The first 6 or 8 digits of a payment card number (credit cards, debit cards, etc.) are known as the Issuer Identification Numbers (IIN), previously known as Bank Identification Number (BIN). These identify the institution that issued the card to the card holder.

Requests are throttled at 10 per minute with a burst allowance of 10. If you hit the speed limit the service will return a 429 http status code.

Keyoxide allows you to link accounts on various online services and platforms together, prove they belong to you and establish an online identity. This puts you, the internet citizen, in charge when it comes to defining who you are on the internet instead of large corporations.

Seems a lot like Keybase.

Source code: https://codeberg.org/keyoxide/web

Seems like it's written in PHP. Could be a lot worse.

The original tilde?

Homepage of one of the tildes out there.

Patator is a utility written in Python to brute-force accounts in different kinds of services (like IMAP, SSH, and HTTP) to gain access. Requires a dictionary file. Dependency heavy because it doesn't actually implement any of the protocols itself but instead relies upon a number of Python modules that already do. Read the code carefully before attempting to run it, it's designed to be user-unfriendly to limit the possibility of abuse.

A website which allows you to pick one or more online services to delete yourself from. Also flags which services you can't delete yourself from (scroll all the way down to the bottom).

Open source, Github repo here: http://github.com/rmlewisuk/justdelete.me

A list of default usernames for Linux AMI's in Amazon's EC2.

The webapp that powers the OpenStreetmap website. Provides the API. rails If you can do it on openstreetmap.org, you'll be able to do it with this, from user accounts to editing and browsing.