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Blockchain Client Libraries

Libraries and SDKs enabling developers to interact with blockchain networks—such as Ethereum—process blockchain data, and build decentralized applications.

The Linux Foundation

by The Linux Foundation

30 projects ・ Updated 14 Mar 2025

Project
Contributors
Organizations
Software value
Web3.js
4,821
1,264
$7.5M
Ethers.js
3,613
962
$4.4M
Web3j
1,928
522
$8.3M
web3.py
1,860
389
$2.5M
Bitcore
1,302
274
$48M
Nethereum
782
114
$227M
thirdweb TypeScript SDK
723
120
$22M
CosmJS
584
124
$2.2M
Polkadot{.js} Extension
517
128
$564K
Stellar JavaScript SDK
500
104
$934K
Cardano Wallet
366
73
$14M
Taquito
349
78
$10M
Pyth Crosschain
344
64
$9.8M
FCL JS
341
64
$3.3M
Nostr Tools
319
71
$378K
Neo-Go
208
34
$6.1M
Beacon SDK
203
53
$887K
Cardano JS SDK
174
31
$29M
smoldot
113
33
$3.8M
MetaMask Providers
107
31
$155K
Substrate Connect
100
23
$1.3M
Hop Protocol
97
17
$13M
Polkadot API
95
30
$1.5M
Ox - Ethereum Standard Library
61
26
$3.6M
Cosmos Kit
0
0
$0
Injective Chain TypeScript SDK
0
0
$0
NEAR API JavaScript Library
0
0
$0
Sequence
0
0
$0
Stacks.js Project
0
0
$0
hashgraph/hedera-sdk-js
0
0
$0
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