Marlowe is a robust, open-source technology that provides a special purpose language describing asset flows on blockchain. As a special purpose, domain-specific language (DSL) it offers a higher-level model of contracts than other Cardnao languages, albeit in a more restricted domain. This means that we can provide safety guarantees, such as no assets being held in a script indefinitely, simply by the design of the language, and others, such as tools to fully analyze for contract faults before running a contract.

Marlowe core technology has been audited, and it supports contracts on mainnet as well as in pre-production; its Runtime enables all the necessary on- and off-chain contract activity, including the tedious work of transaction construction; and the TypeScript SDK supports Marlowe as a component within a complete DApp. It is thus a smart contract technology that is complementary to Aiken, PlutusTx or Scalus, and abstracts away from the complexities of Cardano and provides a local, account-based model like Ethereum.

To find out more about the current status of the Marlowe language and Platform please see this status report

The Marlowe team has made three proposals to Catalyst Fund 13, jointly supporting the design of a new version of the Marlowe language, enhancing the Marlowe Platform to optimise performance and developer experience, and to develop and implement a novel Marlowe Oracle protocol.

• Marlowe Version 2
• Developer-Driven Platform Enhancements
• Oracle Protocol, Design and Implementation

Marlowe is transitioning from an IOG-managed solution to a fully open-source, community maintained project under the auspices of the Marlowe Language CIC (Community Interest Company), a uk-based non-profit. While IOG has provided some resources to help manage the transition and maintain its core capabilities in the interim, going forward Marlowe will need to sustain itself independently with community funding. For more details see our blog post The past, present, and future of Marlowe: a journey of innovation and community empowerment

Other developments run alongside this bid. We are working with IOG to move the Marlowe repositories to this independent GitHub organization, and to coordinate community activity and interest by means of a Marlowe Special Interest Group, supported by the Marlowe Language CIC.

This Github organization will reference all the core projects related to Marlowe. The following IOG repositories will soon be transferred here :

• marlowe
• marlowe-cardano
• marlowe-plutus
• marlowe-playground
• marlowe-runner
• marlowe-ts-sdk
• marlowe-scan
• marlowe-starter-kit
• marlowe-doc
• awesome-marlowe
• real-world-marlowe
• marlowe-order-book-swap
• marlowe-ts-dapp-swap
• marlowe-payouts
• marlowe-token-plans
• marlowe-agda
• marlowe-actus-labs
• marlowe-lambda
• marlowe-hydra-poc
• actus-core
• purescript-datetime-iso
• purescript-markdown
• MIPs
• purescript-marlowe
• purescript-bridge-json-helpers
• purescript-cardano-multiplatform-lib
• purescript-cardano-wallet-client
• purescript-marlowe-runtime-client
• purescript-web-common
• marlowe-cardano-minimal

As Part of this transition, we are moving also our infrastructure, here are the new URLs :

• Marlowe Playground
• Runners
  • preview.runner.marlowe-lang.org
  • preprod.runner.marlowe-lang.org
• Runtimes:
  • preview.100.runtime.marlowe-lang.org/openapi.json
  • preprod.100.runtime.marlowe-lang.org/openapi.json

Be part of the journey and join our welcoming community on Discord.

Follow us on Twitter @marlowe_io for updates and chats about the future of Marlowe.