@fordefi/crypto-address-validator-ts

Crypto address validator for Bitcoin and other altcoins, in TypeScript. This is Fordefi's fork, maintained for use in Fordefi products.

Published as @fordefi/crypto-address-validator-ts. Two related names exist and are not this package:

• @fordefi-public/crypto-address-validator-ts — the previous name of this fork, deprecated as of 0.6.0.
• crypto-address-validator-ts (unscoped) — the upstream project this was forked from. It is a different, older package.

Fork lineage

defunctzombie/bitcoin-address (Roman Shtylman) → ryanralph/altcoin-address → christsim/multicoin-address-validator → marksuurland/crypto-address-validator-ts → arnac-io/crypto-address-validator-ts

MIT licensed throughout; the copyright notice originates with Roman Shtylman. See Differences from upstream for what this fork changed, and CHANGELOG.md for the release history.

Installation

npm install @fordefi/crypto-address-validator-ts

Requires Node.js >= 20.19. The package ships CommonJS and works in Node and in bundlers (webpack, Vite, esbuild, Rollup).

API

Named imports are the API — there is no default export.

import { validate, getCurrencies, findCurrency } from '@fordefi/crypto-address-validator-ts';
import type { AddressType, Currency, Options } from '@fordefi/crypto-address-validator-ts';

validate(address, currencyNameOrSymbol, opts?)

• address — wallet address to validate.
• currencyNameOrSymbol — currency name or symbol, e.g. 'bitcoin', 'litecoin' or 'LTC' (case-insensitive). See supported currencies.
• opts — optional; Options | null. Omit it (or pass null) for default behaviour.

Returns true if the address is a valid wallet address for that currency. Throws Missing validator for currency: <symbol> if the currency is unknown.

interface Options {
    networkType?: 'prod' | 'testnet' | 'both' | 'stagenet';
    chainType?: string;
}

Both fields are optional and opts itself may be omitted or null. An absent networkType behaves as 'prod'; 'both' enforces neither network; 'stagenet' is Monero-only. chainType is only read by the USDT validator, to choose between its ERC-20 and Omni forms — every other currency ignores it, and it is typed string so callers can pass their own chain identifiers.

validate() returns false for an empty or nullish address. It throws only for an unknown currency; use findCurrency() to test support without throwing.

getCurrencies()

Returns Currency[] — every supported currency.

findCurrency(symbol)

Returns the matching Currency, or null if the symbol is not supported. Unlike validate(), this does not throw.

Supported crypto currencies

• 0x/zrx '0x' or 'zrx'
• 1inch Network/1inch '1inch Network' or '1inch' only erc-20 validation no bep-20, xdai or avalanche c-chain
• Aave Coin/aave 'Aave Coin' or 'aave'
• Aavegotchi/ghst 'Aavegotchi' or 'ghst'
• Amp/amp 'Amp' or 'amp'
• Aragon/ant 'Aragon' or 'ant'
• Alpha Finance Lab/alpha 'Alpha Finance Lab' or 'alpha' only erc-20 validation no bep-20
• Audius/audio 'Audius' or 'audio'
• Augur/rep 'Augur' or 'rep'
• AugurV2/repv2 'AugurV2' or 'repv2'
• AuroraCoin/aur 'AuroraCoin' or 'aur'
• Axie Infinity/axs 'Axie Infinity' or 'axs'
• Badger DAO/badger 'Badger DAO' or 'badger'
• Balancer/bal 'Balancer' or 'bal'
• Bancor/bnt 'Bancor' or 'bnt'
• Band Protocol/band 'Band Protocol' or 'band' only erc-20 validation no bep-20, xdai or fantom
• Bankex/bkx 'Bankex' or 'bkx'
• Basic Attention Token/bat 'Basic Attention Token' or 'bat'
• BeaverCoin/bvc 'BeaverCoin' or 'bvc'
• Binance Coin Mainnet/bnb 'Binance Coin Mainnet' or 'bnb'
• BioCoin/bio 'BioCoin' or 'bio'
• Bitcoin/btc 'Bitcoin' or 'btc'
• Bitcoin SV/bsv 'Bitcoin SV' or 'bsv'
• BitcoinCash/bch 'BitcoinCash' or 'bch'
• BitcoinGold/btg 'BitcoinGold' or 'btg'
• BitcoinPrivate/btcp 'BitcoinPrivate' or 'btcp'
• BitcoinZ/btcz 'BitcoinZ' or 'btcz'
• BlockTrade/btt 'BlockTrade' or 'btt'
• Bluzelle/blz 'Bluzelle' or 'blz'
• BTU Protocol/btu 'BTU Protocol' or 'btu'
• bZx Protocol/bzrx 'bZx Protocol' or 'bzrx'
• Callisto/clo 'Callisto' or 'clo'
• Cardano/ada 'Cardano' or 'ada'
• Cartesi/ctsi 'Cartesi' or 'ctsi' only erc-20 validation no bep-20, polygon or avalanche c-chain
• Celsius/cel 'Celsius' or 'cel'
• Chiliz/chz 'Chiliz' or 'chz' only erc-20 validation no bep-20
• Chainlink/link 'Chainlink' or 'link'
• Civic/cvc 'Civic' or 'cvc'
• Compound/comp 'Compound' or 'comp'
• Cream Finance/cream 'Cream Finance' or 'cream' only erc-20 validation no bep-20, xdai or fantom
• Cred/lba 'Cred' or 'lba'
• Crypto.com Coin/cro 'Crypto.com Coin' or 'cro'
• Curve DAO Token/crv 'Curve DAO Token' or 'crv'
• CUSD/cusd 'CUSD' or 'cusd'
• Dash/dash 'Dash' or 'dash'
• Decentraland/mana 'Decentraland' or 'mana'
• Decred/dcr 'Decred' or 'dcr'
• Dent/dent 'Dent' or 'dent'
• DigiByte/dgb 'DigiByte' or 'dgb'
• District0x/dnt 'District0x' or 'dnt'
• DogeCoin/doge 'DogeCoin' or 'doge',
• dYdX/dydx 'dYdX' or 'dydx'
• EasyFi/ez 'EasyFi' or 'ez'
• Efinity Token/efi 'Efinity Token' or 'efi'
• Enjin Coin/enj 'Enjin Coin' or 'enj'
• Enzyme/mln 'Enzyme' or 'mln'
• EOS/eos 'EOS' or 'eos'
• Ethereum/eth 'Ethereum' or 'eth'
• EthereumClassic/etc 'EthereumClassic' or 'etc'
• Ethereum Name Service/ens 'Ethereum Name Service' or 'ens'
• Ethernity Chain/ern 'Ethernity Chain' or 'ern'
• EtherZero/etz 'EtherZero' or 'etz'
• Expanse/exp 'Expanse' or 'exp'
• e-Radix/exrd 'e-Radix' or 'exrd'
• Fantom/ftm 'Fantom' or 'ftm'
• FirmaChain/fct 'FirmaChain' or 'fct'
• FreiCoin/frc 'FreiCoin' or 'frc'
• FTX Token/ftt 'FTX Token' or 'ftt'
• FUNToken/fun 'FUNToken' or 'fun'
• GameCredits/game 'GameCredits' or 'game'
• GarliCoin/grlc 'GarliCoin' or 'grlc'
• Gnosis/gno 'Gnosis' or 'gno'
• Gods Unchained/gods 'Gods Unchained' or 'gods'
• Golem/glm 'Golem' or 'glm'
• Golem (GNT)/gnt 'Golem (GNT)' or 'gnt'
• HedgeTrade/hedg 'HedgeTrade' or 'hedg'
• Hegic/hegic 'Hegic' or 'hegic'
• Holo/hot 'Holo' or 'hot' only erc-20 validation no xdai
• Hush/hush 'Hush' or 'hush'
• HyperSpace/xsc 'HyperSpace' or 'xsc'
• ICON/icx 'ICON' or 'icx'
• iExec RLC/rlc 'iExec RLC' or 'rlc'
• Immutable X/imx 'Immutable X' or 'imx'
• Illuvium/ilv 'Illuvium' or 'ilv'
• Injective/inj 'Injective' or 'inj'
• IOTA/miota 'IOTA' or 'miota'
• Komodo/kmd 'Komodo' or 'kmd'
• KeeperDAO/rook 'KeeperDAO' or 'rook'
• Kyber Network Crystal v2/knc 'Kyber Network Crystal v2' or 'knc'
• LBRY Credits/lbc 'LBRY Credits' or 'lbc'
• UNUS SED LEO/leo 'UNUS SED LEO' or 'leo'
• Lisk/lsk 'Lisk' or 'lsk'
• LiteCoin/ltc 'LiteCoin' or 'ltc'
• Loopring/lrc 'Loopring' or 'lrc'
• Loom Network/loom 'Loom Network' or 'loom'
• Maker/mkr 'Maker' or 'mkr'
• Marlin/pond 'Marlin' or 'pond'
• Matchpool/gup 'Matchpool' or 'gup'
• Matic/matic 'Matic' or 'matic'
• MegaCoin/mec 'MegaCoin' or 'mec'
• Melon/mln 'Melon' or 'mln'
• Metal/mtl 'Metal' or 'mtl'
• Mirror Protocol/mir 'Mirror Protocol' or 'mir' only erc-20 validation no bep-20 or terra
• MonaCoin/mona 'MonaCoin' or 'mona'
• Monero/xmr 'Monero' or 'xmr'
• Multi-collateral DAI/dai 'Multi-collateral DAI' or 'dai'
• MyNeighborAlice/alice 'MyNeighborAlice' or 'alice' only erc-20 validation no bep-20
• NameCoin/nmc 'NameCoin' or 'nmc'
• Nem/xem 'Nem' or 'xem'
• Neo/neo 'Neo' or 'neo'
• NeoGas/gas 'NeoGas' or 'gas'
• Numeraire/nmr 'Numeraire' or 'nmr'
• Ocean Protocol/ocean 'Ocean Protocol' or 'ocean'
• Odyssey/ocn 'Odyssey' or 'ocn'
• OKB/okb 'OKB' or 'okb'
• OmiseGO/omg 'OmiseGO' or 'omg'
• Orchid/oxt 'Orchid' or 'oxt'
• Origin Protocol/ogn 'Origin Protocol' or 'ogn'
• Orion Protocol/orn 'Orion Protocol' or 'orn'
• Paxos/pax 'Paxos' or 'pax'
• Pearl/pearl 'Pearl' or 'pearl'
• PeerCoin/ppc 'PeerCoin' or 'ppc'
• Perpetual Protocol/perp 'Perpetual Protocol' or 'perp'
• Phala Network/pha 'Phala Network' or 'pha'
• PIVX/pivx 'PIVX' or 'pivx'
• Polkadot/dot 'Polkadot' or 'dot'
• Polymath/poly 'Polymath' or 'poly'
• PrimeCoin/xpm 'PrimeCoin' or 'xpm'
• ProtoShares/pts 'ProtoShares' or 'pts'
• Pundi X/pundix 'Pundi X' or 'pundix'
• Qtum/qtum 'Qtum' or 'qtum'
• Quant/qnt 'Quant' or 'qnt'
• Quantstamp/qsp 'Quantstamp' or 'qsp'
• Quantum Resistant Ledger/qrl 'Quantum Resistant Ledger' or 'qrl'
• Raiden Network Token/rdn 'Raiden Network Token' or 'rdn'
• Rarible/rari 'Rarible' or 'rari'
• Reef/reef 'Reef' or 'reef'
• Reserve Rights/rsr 'Reserve Rights' or 'rsr'
• Ripio Credit Network/rcn 'Ripio Credit Network' or 'rcn'
• Salt/salt 'Salt' or 'salt'
• Selfkey/key 'Selfkey' or 'key'
• Serum/srm 'Serum' or 'srm'
• Serve/serv 'Serve' or 'serv'
• SHIBA INU/shib 'SHIBA INU' or 'shib'
• Siacoin/sc 'Siacoin' or 'sc'
• SingularityNET/agix 'SingularityNET' or 'agix'
• SKALE Network/skl 'SKALE Network' or 'skl'
• SnowGem/sng 'SnowGem' or 'sng'
• SolarCoin/slr 'SolarCoin' or 'slr'
• Solana/sol 'Solana' or 'sol'
• SOLVE/solve 'SOLVE' or 'solve'
• Spendcoin/spnd 'Spendcoin' or 'spnd'
• Status/snt 'Status' or 'snt'
• Storj/storj 'Storj' or 'storj'
• Storm/storm 'Storm' or 'storm'
• StormX/stmx 'StormX' or 'stmx'
• Streamr/data 'Streamr' or 'data'
• SushiSwap/sushi 'SushiSwap' or 'sushi',
• SuperFarm/super 'SuperFarm' or 'super' only erc-20 validation no bep-20 or polygon
• SuperRare/rare 'SuperRare' or 'rare'
• Swarm City/swt 'Swarm City' or 'swt'
• Swipe/sxp 'Swipe' or 'sxp'
• Synthetix Network/snx 'Synthetix Network' or 'snx'
• Tap/xtp 'Tap' or 'xtp'
• TEMCO/temco 'TEMCO' or 'temco'
• Tellor/trb 'Tellor' or 'trb'
• TenX/pay 'TenX' or 'pay'
• Tether/usdt 'Tether' or 'usdt'
• Terra Virtua Kolect/tvk 'Terra Virtua Kolect' or 'tvk'
• Tezos/xtz 'Tezos' or 'xtz'
• The Graph/grt 'The Graph' or 'grt'
• The Sandbox/sand 'The Sandbox' or 'sand'
• Tornado Cash/torn 'Tornado Cash' or 'torn'
• Tron/trx 'Tron' or 'trx'
• TrueUSD/tusd 'TrueUSD' or 'tusd'
• Ultra/uos 'Ultra' or 'uos'
• Uniswap Coin/uni 'Uniswap Coin' or 'uni'
• Universal Market Access/uma 'Universal Market Access' or 'uma'
• USD Coin/usdc 'USD Coin' or 'usdc'
• VeChain/vet 'VeChain' or 'vet'
• VertCoin/vtc 'VertCoin' or 'vtc'
• Verasity/vra 'Verasity' or 'vra'
• Viberate/vib 'Viberate' or 'vib'
• VIDT Datalink/vidt 'VIDT Datalink' or 'vidt'
• VoteCoin/vot 'VoteCoin' or 'vot'
• Waves/waves 'Waves' or 'waves'
• Wings/wings 'Wings' or 'wings'
• Wrapped Nexus Mutual/wnxm 'Wrapped Nexus Mutual' or 'wnxm'
• ZCash/zec 'ZCash' or 'zec'
• Yearn.finance/yfi 'yearn.finance' or 'yfi'
• Yield Guild Games/ygg 'Yield Guild Games' or 'ygg'
• ZClassic/zcl 'ZClassic' or 'zcl'
• ZenCash/zen 'ZenCash' or 'zen'

Usage

// TypeScript / ESM
import { validate } from '@fordefi/crypto-address-validator-ts';

validate('1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa', 'bitcoin', null);              // true
validate('0x1111111111111111111111111111111111111111', 'eth', null);         // true
validate('mzBc4XEFSdzCDcTxAgf6EZXgsZWpztRhef', 'btc', { networkType: 'testnet' });

// CommonJS
const { validate } = require('@fordefi/crypto-address-validator-ts');

validate('1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa', 'bitcoin', null);              // true

Framework example

Angular directive

import {Directive, Input} from '@angular/core';
import {AbstractControl, NG_VALIDATORS, ValidationErrors, Validator} from '@angular/forms';
import { validate } from '@fordefi/crypto-address-validator-ts';

@Directive({
  selector: '[ccyCode]',
  providers: [{provide: NG_VALIDATORS, useExisting: CryptoAddressValidationDirective, multi: true}]
})
export class CryptoAddressValidationDirective implements Validator {

  //For example BTC
  @Input() public ccyCode: string;

  public validate(field: AbstractControl): ValidationErrors | null {
    if (!validate(field.value, this.ccyCode, null)) {
      return {messageCode: 'Invalid bitcoin address'};
    }
    return null;
  }
}

HTML

<input id="address"
       [ccyCode]="currency">

Differences from upstream

Relative to crypto-address-validator-ts 0.5.11, the point this fork diverged from. See CHANGELOG.md for per-release detail.

Added

• Solana (sol) address validation.
• Pearl (pearl) address validation — bech32, HRP prl on mainnet and tprl on testnet.
• Currency and Options are exported from the package root.

Changed

• Published under the @fordefi/ scope.
• The build emits CommonJS, so the package loads in Node as well as in bundlers. Releases 0.5.15–0.5.25 emitted ESM that Node could not resolve, and 0.5.12–0.5.14 emitted AMD.
• validate()'s third parameter accepts null.
• Options.chainType is optional — it is only consulted for USDT.
• Solana is validated by base58-decoding the address and requiring 32 bytes, rather than by constructing a @solana/web3.js PublicKey. Behaviour is unchanged; the dependency is gone.
• Only the package root is importable. Deep imports such as @fordefi/crypto-address-validator-ts/dist/validators/... are not part of the public API.
• Requires Node.js >= 20.19.

Removed

• The default export. Use named imports.
• Ripple (xrp), Baby Ripple (babyxrp), Stellar (xlm), Nano (nano) and RaiBlocks (xrb). Their validators were deleted in 0.5.20. validate() throws Missing validator for currency: <symbol> for these — the one change that will silently break code migrating from upstream. Use findCurrency(symbol) to test for support without throwing.

Development

npm ci
npm run build        # tsc -> dist/
npm test             # runs the suite twice: against src, then against the built dist
npm run lint:pkg     # publint + @arethetypeswrong/cli against a packed tarball
npm run lint:dead    # knip (see knip.jsonc)
npm run lint:docs    # the currency list below must match src/currencies.ts
npm run test:pack    # installs the packed tarball into a temp project and loads it

CI runs all of the above on Node 20.19, 22, 24 and 26.

The scripts assume a POSIX shell (test:dist uses env, and the smoke test shells out to npm and tar).

Releasing

Bump version in package.json and update CHANGELOG.md in the same pull request. After it merges, CI runs on master; once CI passes, the release job compares package.json's version against the npm registry and — if that version is not yet published — runs the full gate, publishes, tags the commit v<version> and opens a GitHub Release.

The decision is registry state, not a version diff: a merge that changes nothing will still publish if an earlier attempt left the current version unpublished. Nothing is published once the version is on the registry.

Publishing uses npm trusted publishing (OIDC), so no npm token is stored in this repository and provenance attestations are generated automatically. The release job runs only after CI has passed for the same commit.

One-time setup

Three settings are not in this repository and must be applied by someone with admin:

1. A Trusted Publisher for @fordefi/crypto-address-validator-ts on npmjs.com — provider GitHub Actions, this repo, workflow release.yml, allowed action npm publish. Until it exists the publish step fails.
2. Required reviewers on the release environment. release.yml declares environment: release, but an environment with no protection rules is created implicitly on first use and gates nothing — so until reviewers are configured, push access to master is equivalent to publish access.
3. Branch protection on master requiring the four verify checks, so a publish cannot be triggered by a push that bypassed CI.

After the first publish

Deprecate the names 0.6.0 replaces:

npm deprecate "@fordefi-public/crypto-address-validator-ts@*" "moved to @fordefi/crypto-address-validator-ts"
npm deprecate "@fordefi/crypto-address-validator-ts@<0.6.0" "not loadable by Node; upgrade to >=0.6.0"

The second matters because a caret range on a 0.x version pins the minor: ^0.5.18 will never resolve to 0.6.0, so existing dependents must change their range by hand to receive the fix.