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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.
Plutus dApp which enables users to fractionalize their NFTs. The contract locks an NFT and mints a number of tokens representing fractions of it. To get the NFT back, the fraction tokens are burned.
A Golang serialisation library for Cardano network.
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.
In the browser-based Marlowe Playground you can write Marlowe contracts, in a variety of different ways.
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.
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A delegation button that uses cip30 to improve the quality of life for developers and delegators.
Aiken's utility library (extending standard library). It takes it's inspiration from libraries like Guava (Java) or Lodash (JavaScript). You can find in this library many missing functions, new data types (e.g. Either) also collections (e.g. HashTree, HashList, Stack, Binomial Heap).
A tool for tailing the Cardano blockchain and emitting events for each block and transaction seen, based on user configurable filters.
An Ansible playbook that helps operators provision and maintain a secure Cardano stake pool.
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.
Bakrypt offers backend tools and Cloud storage services for brands, companies, and creators to help them build their NFTs.
Convert to and from bech32 strings from the command-line. A simple and easy-to-use unix utility.
A Crystal SDK for the Blockfrost.io API.
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 set of lightweight tools to operate and maintain a Cardano Stake Pool. Currently includes a leaderlog script based on BlockFrost (no need for working cardano-cli/cardano-node setup and less CPU/mem utilization) and a monitoring script to log relevant metrics directly into a text file in human-readable form (less complex and more resource-efficient than Grafana).
A visual blockchain explorer which supports CIP54 and CIP68 Smart NFTs.
Oracle submitting information using Cardano Metadata.
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 simple Python API for the Cardano Token Registry.
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.
At toolkit for Crystal to ease development for the Cardano blockchain.
An implementation of Rosetta (an open-source specification and set of tools for blockchain integration) for Cardano. Rosetta’s goal is to make blockchain integration simpler, faster, and more reliable than using a native integration.
An HTTP server and command-line for managing UTxOs and hierarchical deterministic wallets in Cardano.
A quickstart and boilerplate code to connect dApps with Web wallets using the latest cardano-serialization-lib. It includes examples with how to lock ADA and Tokens (NFTs) at a plutus script address and then how to redeem them from the plutus script address ... All from the front end. The project is bootstrapped with a Create React App, so is quick to get started for those familiar with this front end framework.
A Javascript library to easily interact with the dApp connector of various wallets.
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.
Wrapper of the cardano-cli tool based on the plu-ts offchain types
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.
A library for validating metadata for the 721 metadatum property. Complies with community standards
A lightweight cross-platform CLI tool for generating/serialising Cardano wallet primitives (i.e. recovery-phrases, keys, addresses and transactions), querying the chain and submitting transactions to the testnet or mainnet networks.
Kubernetes-based project to easily deploy Cardano APIs and a free, hosted community service to access all of them instantly.
API for developers to receive information on changing stake balance.
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.
An automation platform for Cardano to trigger various action based on detecting payment to a wallet address.
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.
A proof of concept secure, imperative language for writing Smart Contracts on Cardano L1.
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
A Golang library for Cardano network, it is used and maintained by Bitrue.
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 Java API library for interacting with Ogmios.
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.
An NFT collection generator that is CIP-25 compliant
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
An untyped Plutus Core assembler.
A developer-driven guide to the Plutus smart contract language in practice.
A collection of Plutus-related helper libraries.
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.
The module provides tools for developers to accept and send transactions, manage staking and much more. It uses cardano-wallet as backend but is future-compatible with other solutions.
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.