Repositories list

• catalyst-libs

  Public
  🌐 A collection of multi-language libraries supporting Catalyst, Cardano’s community-driven innovation platform, enabling secure voting, proposal management, and ecosystem integration.

  dartrustflutter+ 1web3

  Rust

  •

  Apache License 2.0

  •1•4•36•8•Updated Dec 24, 2025Dec 24, 2025

• hackage.nix

  Public

  input-output-hk/hackage.nix’s past year of commit activity
  Automatically generated Nix expressions for Hackage

  Nix

  •18•21•0•0•Updated Dec 24, 2025Dec 24, 2025

• partner-chains

  Public

  input-output-hk/partner-chains’s past year of commit activity
  Substrate node with capability of communicating with Cardano network

  Rust

  •

  Apache License 2.0

  •26•65•4•22•Updated Dec 24, 2025Dec 24, 2025

• haskell.nix

  Public
  Alternative Haskell Infrastructure for Nixpkgs

  infrastructurehaskellnix+ 3build-toolhacktoberfestnix-expressions

  Nix

  •

  Apache License 2.0

  •259•617•166•4•Updated Dec 24, 2025Dec 24, 2025

• hermes

  Public

  input-output-hk/hermes’s past year of commit activity
  🏛️ Hermes is a high-availability blockchain voting database that acts as a distributed storage and event processor for voting events, proposals, and actions.

  rustwasmflutter+ 1web3

  Rust

  •

  Apache License 2.0

  •3•20•56•1•Updated Dec 24, 2025Dec 24, 2025

• cardano-parameters

  Public
  Cardano network parameters which are updated regularly from Blockfrost

  Shell

  •

  Apache License 2.0

  •0•1•0•0•Updated Dec 24, 2025Dec 24, 2025

• stackage.nix

  Public

  input-output-hk/stackage.nix’s past year of commit activity
  Automatically generated Nix expressions of Stackage snapshots

  Nix

  •7•12•0•0•Updated Dec 24, 2025Dec 24, 2025

• plinth-static-analyzer-research

  Public
  Research repository for the Plu-stan analyzer

  Apache License 2.0

  •0•0•0•0•Updated Dec 23, 2025Dec 23, 2025

• acropolis

  Public
  Acropolis modular node architecture & components in Rust

  Rust

  •

  Apache License 2.0

  •6•11•99•2•Updated Dec 23, 2025Dec 23, 2025

• ouroboros-leios

  Public
  Documentation and tools relating to the design and prototyping of Ouroboros Leios

  blockchainscalingcardano

  Jupyter Notebook

  •9•31•61•4•Updated Dec 23, 2025Dec 23, 2025

• mithril

  Public

  input-output-hk/mithril’s past year of commit activity
  Stake-based threshold multi-signatures protocol

  rustblockchainscalability+ 6mithrilmultisigcardanocardano-nodemulti-signaturesmulti-signature-aggregation

  Rust

  •

  Apache License 2.0

  •52•146•109•9•Updated Dec 23, 2025Dec 23, 2025

• sc-tools

  Public
  Select coins, build transactions

  Haskell

  •

  Apache License 2.0

  •18•17•15•3•Updated Dec 23, 2025Dec 23, 2025

• cardano-haskell-packages

  Public
  Mirror of IntersectMBO/cardano-haskell-packages

  1•0•0•0•Updated Dec 23, 2025Dec 23, 2025

• catalyst-voices

  Public
  🎙️ Catalyst Voices provides a unified experience and platform including production-ready liquid democracy, meaningful collaboration opportunities & data-driven context for better onboarding & decisions.

  dartrustflutter+ 3web3catalystcardano

  Dart

  •

  Apache License 2.0

  •10•40•260•12•Updated Dec 23, 2025Dec 23, 2025

• capkgs

  Public
  Content Addressed Packages

  nixcontent-addressed

  Crystal

  •

  Apache License 2.0

  •3•6•0•0•Updated Dec 23, 2025Dec 23, 2025

• cardano-playground

  Public

  input-output-hk/cardano-playground’s past year of commit activity
  Cardano testnet clusters

  HTML

  •

  Apache License 2.0

  •5•5•0•1•Updated Dec 23, 2025Dec 23, 2025

• cardano-parts

  Public
  Nix flake parts for cardano clusters

  Nix

  •

  Apache License 2.0

  •4•9•2•1•Updated Dec 23, 2025Dec 23, 2025

• actions

  Public
  IOG GitHub Actions

  Shell

  •5•2•2•0•Updated Dec 22, 2025Dec 22, 2025

• hydra-tools

  Public
  custom GitHub Checks integration for Hydra

  githubnixci+ 1hydra

  Haskell

  •5•0•5•1•Updated Dec 22, 2025Dec 22, 2025

• innovation-cavefish

  Public
  Light client prototype feature type for UTxO- based blockchains for submitting transactions privately

  TeX

  •

  Apache License 2.0

  •0•0•31•3•Updated Dec 22, 2025Dec 22, 2025

• plutus-halo2-verifier-gen

  Public
  Tool to enable proof verification on Cardano blockchain

  Rust

  •

  Apache License 2.0

  •3•5•6•1•Updated Dec 22, 2025Dec 22, 2025

• cuddle

  Public

  input-output-hk/cuddle’s past year of commit activity
  CDDL DSL and Testing Tools

  cborcddl

  Haskell

  •

  Apache License 2.0

  •4•6•18•6•Updated Dec 22, 2025Dec 22, 2025

• sc-tools-experiments

  Public
  Select coins, build transactions

  Haskell

  •

  Apache License 2.0

  •18•0•0•2•Updated Dec 22, 2025Dec 22, 2025

• lace

  Public
  The Lace Wallet.

  cryptowalletlace+ 1cardano

  TypeScript

  •

  Apache License 2.0

  •17•41•5•26•Updated Dec 22, 2025Dec 22, 2025

• constrained-generators

  Public
  Framework for generating constrained random data using a subset of first order logic

  Haskell

  •

  Apache License 2.0

  •0•3•16•1•Updated Dec 22, 2025Dec 22, 2025

• iogx

  Public
  Flake Template for Haskell Projects

  Nix

  •9•26•1•1•Updated Dec 22, 2025Dec 22, 2025

• catalyst-ci

  Public
  Common CI workflows for Project Catalyst

  Python

  •

  Apache License 2.0

  •0•7•22•6•Updated Dec 22, 2025Dec 22, 2025

• caryatid

  Public
  Caryatid Event-based Modular Framework

  Rust

  •

  Apache License 2.0

  •5•8•6•1•Updated Dec 22, 2025Dec 22, 2025

• foliage

  Public
  🌿 Foliage is a tool to create custom Haskell package repositories, in a fully reproducible way.

  haskell

  Haskell

  •

  MIT License

  •9•43•21•6•Updated Dec 21, 2025Dec 21, 2025

• devx

  Public

  input-output-hk/devx’s past year of commit activity
  The Developer Experience Shell - This repo contains a nix develop shell for haskell. Its primary purpose is to help get a development shell for haskell quickly and across multiple operating systems (and architectures).

  hacktoberfest

  Nix

  •

  Apache License 2.0

  •10•52•22•6•Updated Dec 21, 2025Dec 21, 2025