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Tools to help you build on Cardano

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  • A modern smart contract platform for Cardano.

  • Instant and scalable API to the Cardano blockchain.

  • A client library for Cardano in Java. For some features like transaction signing and address generation, it currently uses cardano-serialization-lib rust library though JNI.

  • The companion command-line to interact with a Cardano node, manipulate addresses or create transactions.

  • A library of utilities and codecs for serialization/deserialization of core data-stuctures. Replacement for 'cardano-serialization-lib'.

  • CardanoSharp Wallet is a .NET library for Creating/Managing Wallets and Building/Signing Transactions.

  • A cloud environment with all the tools for building your dApp.

  • A collection of tools (CNTools, gLiveView, topologyUpdater and more) to simplify typical operations to help community simplify wallet keys, pool management and interact with blockchain.

  • A lightweight & configurable chain-index for Cardano.

  • Marlowe is a domain-specific language (DSL) that enables users to create blockchain applications that are specifically designed for financial contracts.

  • A feature-complete, open-source TypeScript SDK and off-chain framework including wallet integration, transaction building, a smart contract library, third-party API integration, and UI components: with thorough documentation and live demos for all skill levels.

  • Ogmios is a lightweight bridge interface (WebSocket + JSON/RPC) for cardano-node.

  • Oura is a rust-native implementation of a pipeline that connects to the tip of a Cardano node through a combination of Ouroboros mini-protocol, filters the events that match a particular pattern and then submits a succint, self-contained payload to pluggable observers called 'sinks'.

  • Read-optimized cache of Cardano on-chain entities.

All Tools

  • A delegation button that uses cip30 to improve the quality of life for developers and delegators.

  • A tool for tailing the Cardano blockchain and emitting events for each block and transaction seen, based on user configurable filters.

  • Argus | Cardano.Sync is a .NET library that simplifies interactions with the Cardano blockchain by providing an efficient indexing framework.

  • Atlas is an all-in-one, Haskell-native application backend for writing off-chain code for on-chain Plutus smart contracts.

  • A Python library that benefits the token & NFT communities. Scripts allow easy wallet management, automatic creation of unlocked and time-locked policy IDs, as well as the ability to quickly: build, sign, and submit transactions, and much more. Note: This library relies on wrapping cardano-cli.

  • A collection of curated awesome Aiken libraries, DApps, tutorials & other cool stuff.

  • Convert to and from bech32 strings from the command-line. A simple and easy-to-use unix utility.

  • A security and compliance audit script for Cardano stakepool nodes, to help SPOs check their node and security configuration.

  • Download the latest Cardano blockchain snapshot.

  • Useful hooks and React components to simplify the Cardano dApp integration e.g. to connect browser wallets, fetch addresses and provide signing.

  • Lightweight and Portable Scheduled Blocks Checker for Next, Current and Previous Epochs.

  • A visual blockchain explorer which supports CIP54 and CIP68 Smart NFTs.

  • An HTTP API for interfacing with a local Cardano Node and providing the node internal data for HTTP clients.

  • Library for serialization & deserialization of data structures used in Cardano's Haskell implementation.

  • Tool to sign data with a Cardano-Secret-Key and verify data with a Cardano-Public-Key

  • A Purescript library for building smart contract transactions on Cardano (NodeJS & the browser)

  • A lightweight typescript library to verify a cip30 datasignature.

  • A command-line utility and library for manipulating addresses, keys and recovery phrases on Cardano.

  • This is a Typescript/Javascript version of the cardano-addresses API. It includes a web demo.

  • A pure C library for interacting with the Cardano blockchain. Compliant with MISRA standards and binding-friendly architecture.

  • A PostgreSQL database layer which stores all data from the Cardano blockchain in a structured and normalized way.

  • A cross-platform, typed, and queryable API for Cardano.

  • JavaScript SDK for interacting with Cardano, providing various key management options, soon to be including support for popular hardware wallets.

  • A lightweight Java implementation of the Mesh (formerly Rosetta) API for Cardano, built on Yaci-store for reduced resource footprint.

  • An HTTP server and command-line for managing UTxOs and hierarchical deterministic wallets in Cardano.

  • A JavaScript SDK for Cardano Wallet with a extra functionalities. You can use it as a client for the official cardano-wallet and also to create Native Tokens and NFTs.

  • A library that wraps the cardano-cli in JavaScript.

  • A modular indexer for Cardano with an SQL Postgres backend.

  • This project aims to achieve multiple goals: re-implement Cardano ledger rules for calculating ada pots and rewards, validate Cardano's rewards calculation through an alternative implementation of the ledger specification, provide a library for use in other projects (like yaci-store) independent of DB Sync, and offer insights into protocol parameters and ada flow through interactive reports.

  • This repository provides applications for indexing Cardano blockchain data into a PostgreSQL database, scheduling jobs, and streaming blockchain events to messaging systems like Kafka or RabbitMQ, offering flexible data management and customization options.

  • CFD simplifies and accelerates Cardano software deployment, stake pool management, software updates, and secure key handling, including GPG keychain integration and automated encryption, all with minimal user effort.

  • API for developers to receive information on changing stake balance.

  • Advanced Plutus fractionalized Token protocol which supports Token Bag functionality.

  • An encrypted, air-gapped Linux bootable USB drive for Cardano transaction signing, sandboxed access to files on your main computer, and storage & backup of secure assets & documents.

  • Golang implementation of the Cardano Ouroboros network protocol.

  • A DSL for writing Cardano Smart Contracts. Reference compiler is a single Javascript file without dependencies.

  • Hydra is the layer-two scalability solution for Cardano, which aims to increase the speed of transactions (low latency, high throughput) and minimize transaction cost.

  • An IntelliJ plugin for Cardano blockchain.

  • A Kotlin API library for interacting with Ogmios.

  • Elastic light/full-mode API query-layer for Cardano Blockchain.

  • The Koios Api python package allows interrogating the Cardano blockchain using https://api.koios.rest/. It has pagination and retry in case of errors.

  • A Java API library for interacting with Koios Server instances.

  • Koios Python wrapper which allow interacting with all information and parameters stored on the Cardano blockchain.

  • Wrapper of the koios tool based on the plu-ts offchain types

  • Lucid is a library, which allows you to create Cardano transactions and off-chain code for your Plutus contracts in JavaScript and Node.js.

  • Highly scalable, production-ready transaction builder & off-chain framework for users and dApps

  • Blockchain indexer, APIs and event management system for the Cardano blockchain.

  • A custom PostgreSQL extension to interact with Cardano CBOR data directly.

  • An integrated development environment for building CIP54-compliant Smart NFTs.

  • A simple CNFT mint-and-vend machine Python library that leverages cardano-cli and Blockfrost.

  • Display all Cardano NFTs effortlessly & efficiently on your website/app using the low-code & high-speed NFTCDN service.

  • A simple pythonic programming language for Smart Contracts on Cardano.

  • Orcfax is a decentralized oracle service designed to publish data about real world events to the Cardano blockchain. Orcfax data is made available to on-chain smart contracts in Cardano's eUTXO native format using the Orcfax Protocol.

  • Rust-native building blocks for the Cardano blockchain ecosystem.

  • Pallas.DotNet is a .NET wrapper around the Pallas Rust library, which provides building blocks for the Cardano blockchain ecosystem. This library allows .NET developers to access the functionality of Pallas in a seamless and straightforward manner.

  • System service to configure a DDNS address firewall rule on a BP and send a message via Telegram Bot if your relay IP address has changed. Keeps Cardano nodes connected and secure on residential ISPs with rolling public IPs.

  • A fast, Rust-based PostgreSQL extension for Cardano cryptographic operations, including Base58, Bech32, CBOR, Blake2b, and Ed25519 with some useful high-level tools.

  • Pirouette is a semi-automatic code extraction tool for model-checking. It extracts a TLA+ specification from a Plutus Mealy Machine.

  • Typescript-embedded smart contract programming language and transaction creation library

  • Plutarch is a typed eDSL in Haskell for writing efficient Plutus Core validators.

  • Cardano tool that aims to help dApp developers with integration testing and contracts debugging using disposable private network

  • A developer-driven guide to the Plutus smart contract language in practice.

  • A JavaScript API for test-driven development with Helios.

  • A Cardano library written in Python. It allows users to build and sign transactions without depending on other Cardano serialization tools (such as cardano-cli and cardano-serialization-lib), making it a lightweight library that is easy and fast to set up in all kinds of environments.

  • CLI scripts to manage your stake pool (online or offline), use and migrate to hardware wallets, send transactions with messages, register for Catalyst, mint/burn Tokens, generate the Token Registry, and more.

  • Pure javascript Cardano wallet library.

  • UTxORPC (u5c for short) is a gRPC interface for UTxO Blockchains, Interact with UTxO-based blockchains using a shared specification with focus on developer experience and performance.

  • This is a library for building off-chain code on Cardano. It is a cardano-cli like wrapper on cardano-serialization-lib (equivalent on MeshJS’s lower level APIs), supporting serious DApps’ backend on rust codebase.

  • An Elixir client for Ogmios.

  • Create your own local Cardano devnet with ease! It includes an Indexer, minimal Explorer interface, and support for Cardano Client Lib or Lucid JS library's Blockfrost provider.

  • A validator & companion command-line tool to provide hot/cold account management to delegate representatives (a.k.a DReps) on Cardano. The on-chain validator provides an authentication mechanism for an administrator multisig script (m-of-n type), itself granting powers to multisig-like delegate to manage voting stake rights.