substrate — open-source software health

crates.io

98Exceptionalhealth index

paritytech/polkadot-sdk

The Parity Polkadot Blockchain SDK

Rust★ 2,805↓ 42.4K/moSep 10, 2026

No licenseSep 10, 2026 · metrics 2.10.0

npm

94Exceptionalhealth index

polkadot-api/polkadot-api

Polkadot-API is a meticulously crafted suite of libraries, each designed to be composable, modular, and aligned with a "light-client first" philosophy.

TypeScript★ 157↓ 457.3K/moSep 12, 2026

MITSep 12, 2026 · metrics 2.10.0

crates.io · npm

93Exceptionalhealth index

RaoFoundation/subtensor

Bittensor

Rust · Python · TypeScript★ 382Sep 16, 2026

Apache-2.0Sep 16, 2026 · metrics 2.10.0

npm · crates.io

92Excellenthealth index

moonbeam-foundation/moonbeam

An Ethereum-compatible smart contract parachain on Polkadot

TypeScript · Rust★ 931↓ 3,360/moSep 13, 2026

GPL-3.0Sep 13, 2026 · metrics 2.10.0

crates.io

92Excellenthealth index

paritytech/subxt

Interact with Substrate based nodes in Rust or WebAssembly

Rust★ 489↓ 2.9M/moAug 27, 2026

Custom licenseAug 27, 2026 · metrics 2.10.0

crates.io

91Excellenthealth index

galacticcouncil/hydration-node

Hydration node - Cross-chain liquidity protocol built with Polkadot-SDK

Rust★ 206Sep 10, 2026

Apache-2.0Sep 10, 2026 · metrics 2.10.0

npm · crates.io

90Excellenthealth index

frequency-chain/frequency

Frequency: A Polkadot Parachain

Rust · TypeScript★ 56↓ 315/moSep 14, 2026

Apache-2.0Sep 14, 2026 · metrics 2.10.0

crates.io

90Excellenthealth index

paritytech/zombienet-sdk

ZombieNet SDK

Rust★ 55↓ 455.5K/moOct 20, 2026

GPL-3.0Oct 20, 2026 · metrics 2.10.0

crates.io · npm · PyPI

86Excellenthealth index

hyperledger-solang/solang

Solidity Compiler for Solana, Polkadot and Stellar

Rust · Solidity★ 1,382↓ 282.5K/moSep 19, 2026

Apache-2.0Sep 19, 2026 · metrics 2.10.0

npm

83Excellenthealth index

polkadot-js/extension

Simple browser extension for managing Polkadot and Substrate network accounts in a browser. Allows the signing of extrinsics using these accounts. Also provides a simple interface for compliant extensions for dapps.

TypeScript★ 1,019↓ 350.4K/moOct 9, 2026

Apache-2.0Oct 9, 2026 · metrics 2.10.0

npm

78Goodhealth index

Zondax/ledger-substrate-js

Ledger Nano Kusama / Polkadot integration library + examples

TypeScript★ 17↓ 41.9K/moOct 21, 2026

Apache-2.0Oct 21, 2026 · metrics 2.10.0

npm · crates.io

77Goodhealth index

kryptobaseddev/cleo

Agent-first task orchestration. Persistent memory. Multi-provider coordination.

TypeScript★ 159↓ 33.4K/moOct 19, 2026

MITOct 19, 2026 · metrics 2.10.0

crates.io · npm

77Goodhealth index

paritytech/smoldot

Alternative client for Substrate-based chains.

Rust★ 329↓ 911.1K/moSep 13, 2026

GPL-3.0Sep 13, 2026 · metrics 2.10.0

npm

77Goodhealth index

polkadot-labs/hdkd

Polkadot minimalistic Hierarchical Deterministic Key Derivation (HDKD) libraries

TypeScript★ 6↓ 192.8K/moOct 14, 2026

MITOct 14, 2026 · metrics 2.10.0

npm

75Goodhealth index

polkadot-js/common

Utilities and base libraries for use across polkadot-js for Polkadot and Substrate. Includes base libraries, crypto helpers and cross-environment helpers.

TypeScript★ 261↓ 7.4M/moSep 28, 2026

Apache-2.0Sep 28, 2026 · metrics 2.10.0

npm · crates.io

71Goodhealth index

threefoldtech/ledger_chain

Threefold Chain.

Rust · Go★ 20Sep 18, 2026

Apache-2.0Sep 18, 2026 · metrics 2.10.0

npm

69Goodhealth index

dedotdev/dedot

Delightful JavaScript client for Polkadot & Polkadot SDK-based blockchain networks

TypeScript★ 71↓ 35.2K/moOct 14, 2026

Apache-2.0Oct 14, 2026 · metrics 2.10.0

npm

63Moderatehealth index

ODATANO/NIGHTGATE

A CAP-based OData V4 gateway to the Midnight privacy chain, providing confidential on-chain data access and privacy-preserving transaction execution to any enterprise system

TypeScript · JavaScript★ 4↓ 6,286/moSep 10, 2026

Apache-2.0Sep 10, 2026 · metrics 2.10.0

crates.io

62Moderatehealth index

turboflakes/crunch

Crunch is a command-line interface (CLI) and Matrix Bot to claim staking rewards every Era for Substrate-based chains

Rust★ 71Sep 20, 2026

Apache-2.0Sep 20, 2026 · metrics 2.10.0

npm

60Moderatehealth index

airgap-it/airgap-coin-lib

A library that offers a unified API to prepare, sign and broadcast multiple cryptocurrencies.

TypeScript★ 154↓ 12.7K/moOct 21, 2026

MITOct 21, 2026 · metrics 2.10.0

crates.io

57Moderatehealth index

virto-network/kreivo

Virto Network blockchain node.

Rust★ 23Sep 6, 2026

GPL-3.0Sep 6, 2026 · metrics 2.10.0

npm

56Moderatehealth index

novasamatech/subquery-history

SubQuery API for saturating Nova Wallet as a data source. Focuses on the following use cases: 1) Provide complete operation history, including Transfers, Rewards/slashes, Other extrinsics 2) Provide data for staking analytics

TypeScript · Python★ 22Sep 12, 2026

Apache-2.0Sep 12, 2026 · metrics 2.10.0

Maven

42Weakhealth index

substrate4j/substrate4j

Interact with Polkadot (Substrate based nodes) in Java

Java★ 9Sep 9, 2026

Custom licenseSep 9, 2026 · metrics 2.10.0

crates.io · Go · npm

39Weakhealth index

vul-os/kotva

KOTVA — the sovereign substrate: a narrow-waist protocol family (identity, signed objects, transport, pub/sub, sync) with mail (DMTAP), commerce (TRACT) and work (WRAP) as profiles. No token.

Rust · Python★ 0↓ 256/moSep 19, 2026

Custom licenseSep 19, 2026 · metrics 2.10.0

34At Riskhealth index