Alternatives and similar repositories for spec:

Users that are interested in spec are comparing it to the libraries listed below

• OmniLayer / omniwallet
  Omni Protocol Hybrid Web-Wallet
  ☆330Updated 7 months ago
• OmniLayer / OmniClientJS
  (Unmaintained) Omni Layer Node.js RPC client (bitcoind + omnicored extensions)
  ☆91Updated 3 years ago
• siminchen / bitcoinIDE
  ☆215Updated 5 years ago
• decred / atomicswap
  On-chain atomic swaps for Decred and other cryptocurrencies.
  ☆508Updated 8 months ago
• lightningnetwork / paper
  Lightning Network Paper
  ☆180Updated 2 years ago
• breadwallet / breadwallet-core
  SPV bitcoin C library
  ☆276Updated 11 months ago
• bitcoinfibre / bitcoinfibre
  Fast Internet Bitcoin Relay Engine
  ☆133Updated 5 years ago
• CounterpartyXCP / counterparty-core
  Counterparty Protocol Reference Implementation
  ☆292Updated this week
• bitpay / bitcoin
  Bitcore Bitcoin build with address indexes
  ☆60Updated last year
• ethereum / btcrelay
  Ethereum contract for Bitcoin SPV: Live on https://etherscan.io/address/0x41f274c0023f83391de4e0733c609df5a124c3d4
  ☆617Updated last year
• gobitfly / erc20-explorer
  An explorer for ERC20 based Ethereum tokens
  ☆271Updated 10 months ago
• AltCoinExchange / ethatomicswap
  Ethereum atomic swap
  ☆305Updated 6 years ago
• ethereumclassic / explorer
  EthereumClassic Block Explorer
  ☆263Updated 2 years ago
• bitpay / bitcore-node
  Extensible full node using Bitcore
  ☆353Updated 2 years ago
• OmniLayer / omnicore
  OmniCore staging tree
  ☆762Updated 9 months ago
• emeraldpay / emerald-wallet
  Emerald Wallet
  ☆215Updated this week
• sipa / bech32
  Code snippets and analysis of the Bech32 format
  ☆198Updated 2 years ago
• bitcoincashorg / spec
  Technical specifications
  ☆112Updated 5 years ago
• gcash / bchd
  An alternative full node bitcoin cash implementation written in Go (golang)
  ☆282Updated last week
• libbitcoin / libbitcoin-explorer
  Bitcoin Command Line Tool
  ☆614Updated last year
• spesmilo / electrum-server
  Electrum server
  ☆305Updated 4 years ago
• blocknetdx / blocknet
  Official Blocknet cryptocurrency wallet
  ☆213Updated last year
• bitcoinjs / coinselect
  An unspent transaction output (UTXO) selection module for bitcoin.
  ☆190Updated last year
• bitpay / bitcore-wallet-client
  A client library for bitcore-wallet-service
  ☆152Updated 6 years ago
• soroushjp / go-bitcoin-multisig
  Bitcoin M-of-N Multisig P2SH implemented in Go
  ☆175Updated 3 years ago
• sipa / bitcoin-seeder
  ☆407Updated 11 months ago
• bitpay / insight-api
  The bitcoin blockchain API powering Insight
  ☆590Updated 2 years ago
• EOSIO / eos-token-distribution
  ☆194Updated 2 years ago
• bitcoinjs / bip44-constants
  This package provides BIP44 coin constants as found here: https://github.com/satoshilabs/slips/blob/master/slip-0044.md
  ☆90Updated this week
• LedgerHQ / app-bitcoin
  Legacy Bitcoin wallet application for Ledger devices
  ☆130Updated 3 months ago