Samples

CorDapp templates


Skeleton Java and Kotlin CorDapps that you can use as the basis for your own CorDapps.

Sample CorDapps developed by R3


A set of Apache-2.0 licensed sample CorDapps showing you how to implement specific functionality that you can use them as the basis for your own CorDapps.

Community Cordapps and Projects


A listing of open-source CorDapps developed by the Corda community. If you have an open-source CorDapp or project that you would like to feature here, get in touch at devrel@r3.com. Looking for inspiration? Take a look at our list of science projects or see our good first issues.

  • Be-Well – developed by Siddhartha Sengupta – CorDapp that allows clients to purchase wellness services via brokers
  • Braid – developed by Bluebank – High performance reactive RPC library for exposing your flows and services in a secure way, with very little code, and to consume them in multiple languages and runtimes such as Javascript on node.js
  • Cached Distribution List – developed by Tushar Singh Bora – CorDapp that downloads and caches a list of parties on the node at a fixed interval. The node can then easily distribute information to all the nodes in this list
  • CordaGen – developed by Janis Olekss – Autogenerates CorDapp structure based on user-defined node roles
  • Cordite – developed by the Cordite Foundation – Open-source CorDapp that provides decentralised economics and governance services. It is founded by three key concepts, the DGL (distributed general ledger), the DAO (decentralised autonomous organisation) and Metering. Cordite is regulatory friendly, enterprise ready and finance grade. To find out more, please reach out on the #cordite channel on slack.corda.net
  • Cordite Network Map Service – developed by the Cordite Foundation – Webserver implementing the Corda doorman and network map protocols
  • Delivery vs Payment Asset Transfers – developed by Balaji More – CorDapp that allows for delivery-vs-payment of an asset coordinated by a clearing house
  • Encumbrance Bakery - developed by Tushar Singh Bora – CorDapp using encumbrances to prevent cakes from being sold or consumed after their expiry date
  • Exchange Rates Oracle – developed by Milen Dobrinov – Oracle for interacting with the Foreign exchange rates API
  • Loan-Finance Application – developed by Shivan Sawant – CorDapp for approving or denying loans based on credit agency ratings
  • FX Trading CorDapp - developed by Dinesh Rivankar - CorDapp for FX trading
  • Insurance Claim CorDapp - developed by Manila Gauns – CorDapp for confidentially settling insurance claims
  • Ktor RPC – developed by S-Labs – Ktor webserver that communicates with Corda nodes
  • node.js GraalVM Server - developed by Nitesh Solanki – Application that imports the Corda RPC library into node.js to issue and fetch IOUs, running on GraalVM
  • NodePad – developed by Fred Mastot and Viktorija Trubaciute – A toolkit for node monitoring and operations
  • Obligation Spring Webserver - developed by Clyde D'Cruz - Spring webserver for the Obligation CorDapp
  • Oraclize API – developed by Oraclize – Oracle service that uses authenticity proofs to prove that data fetched from the original data-source is genuine and untampered with
  • Project Ubin – development managed by Accenture – CorDapp for real-time gross settlement
  • Property Listing – developed by Parnika Sharma – CorDapp allowing nodes to upload property listings and pull these listings from other nodes
  • Spring WebFlux Webserver - developed by Dan Newton - Spring WebFlux webserver for Corda nodes
  • State Upgrades – developed by Nitesh Solanki – CorDapp showing how to upgrade a state without upgrading its contract
  • Yo! Docker – developed by Ajitha Thayaharan – CorDapp showing how to deploy a network of nodes using Docker