Use this code tell if a given address is valid for a given cryptocoin.

The design goals of this library are:

• Simplicity
• Security

This code has no dependencies and defines a single function isValidAddress(coin,address) which returns true or false.

The variables coin and address are assumed to be potentially-hostile user input. The main purpose of this library is to prevent easily-detectable invalid addresses from ever getting to lower-level libraries or coin daemons (like bitcoind).

Use at your own risk! This is currently being developed and not ready for production use.

isValidAddress("BTC","notvalid")                               # false
isValidAddress("HUSH", "t1JTXxWyBrxdWNTaNa5gYPPfpJkhqESvyox")  # true
isValidAddress("KMD", "RNJmgYaFF5DbnrNUX6pMYz9rcnDKC2tuAc")    # true

• BTC (bech32 not supported yet)
• BTG
• DASH
• DOGE
• EMC2
• ETC
• ETH
• GAME
• HUSH
• KMD (and 30+ asset chains)
• LTC
• PIVX
• RVN
• VRSC
• XSG
• ZCL
• ZEC

Yes, probably! Make it easy, and submit a Github Issue, with the coin ticker and example addresses of each type (normal, multisig, shielded, etc..). That makes it almost trivial to add a new coin.

Even better: Patches Welcome! Please submit PR's to the master branch.

Tests are written with qunit, and run direcly in the browser: http://duke.leto.net/address-validator/

Both normal and multisig addresses are supported for coins that have them.

Transparent and shielded addresses are supported, for coins with shielded addresses. For Zcash-derived coins, Sprout and Sapling addresses are supported.

Currently that is not directly supported. It is recommended that you call isValidAddress for validity, and then also do a prefix check for the address type.

MIT