FireFly Enterprise //
Web3 Middleware

Hyperledger FireFly: the premier Web3 orchestration engine

Accelerate your Web3 journey with the first open-source middleware built for enterprises. FireFly simplifies secure application development, seamlessly connecting legacy systems to the decentralized future.

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Complete Web3 gateway for building and scaling secure apps

It’s no secret that building Web3 apps is hard. There are protocols  to master, new constructs like tokens and smart contracts to understand, and then the challenge of integrating it all with existing systems,  which may be the hardest part of all.

Kaleido created Hyperledger FireFly to solve that problem and contributed it to Hyperledger, now LF Decentralized Trust, where it is a graduated project. FireFly runs production use cases around the world.


Hyperledger FireFly serves as a blockchain middleware, making it easier to connect  reliably across multiple public and private blockchains and manage the  full lifecycle of digital assets with native token and indexing support.

Accelerate development
Build Web3 apps faster with a rich stack of native Web3, B2B, and integration services.
Run at scale
Connect to the multi-chain and multi-protocol Web3 world on a scalable,  cloud-native platform built as microservices on Kubernetes.
Future-proof
Build on an open-source standard that prevents vendor lock-in and has a connector framework for new protocols.

What's inside the box

The FireFly Web3 gateway is a set of connectors and runtimes managed by FireFly. FireFly exposes a simple API for use by developers building decentralized applications.
This infographic shows the Hyperledger FireFly architecture

Generate APIs for any smart contract

Integration to your apps made easy for developers with dynamically-generated REST APIs for any smart contract code, common standard or not.

Reliable transaction management

Ensure 100% reliable data flow with an event bus that handles retries, confirms finality, and sequences complex transactions automatically.

Enterprise-friendly open source

Apache 2.0 license governed by the Linux Foundation Decentralized Trust community.

From real-world-assets to next-generation finance

Stablecoins

Securely issue and manage institutional-grade stablecoins, with automated workflows for minting, burning, and more.

Securities

Issue and manage regulated tokenized equities and bonds, with built-in compliance and flexible signing models.

Real world assets

Bring liquidity to illiquid assets like real estate, art, and private credit by creating fully-collateralized, auditable digital tokens.

Tokenized Deposits

Create and manage programmable commercial bank money on a network of your choice.

CBDCs

Enable central banks to securely issue, distribute, and manage programmable digital money with built-in policy controls.

Funds

Streamline the entire lifecycle of funds by automating NAV reporting, distributions, and compliance checks with secure governance.

Frequently asked questions

What your legal, risk, and technology teams may ask.

What is FireFly Enterprise?

FireFly Enterprise is Kaleido's enterprise offering built on FireFly, the open-source Web3 orchestration engine. Kaleido created FireFly and contributed it to Hyperledger, now the Linux Foundation Decentralized Trust, where it is known as Hyperledger FireFly. FireFly Enterprise sits between your applications and the blockchain, connecting to multiple public and private chains and managing the full digital asset lifecycle with native token and indexing support.

What is Web3 middleware?

Web3 middleware is the software layer between business applications and blockchains. It turns API calls into blockchain transactions, tracks their status through to finality, and streams on-chain events back to your systems. FireFly Enterprise is Kaleido's Web3 middleware, so your developers work with familiar APIs instead of learning each protocol's internals.

Is FireFly open source?

Yes. The FireFly core is open source under the Apache 2.0 license and governed by the Linux Foundation Decentralized Trust community, so your code never depends on a single vendor. Kaleido created FireFly and contributed it to Hyperledger, now LF Decentralized Trust, and FireFly Enterprise lets you run it on the Kaleido platform as managed SaaS or on your own Kubernetes infrastructure.

What does FireFly Enterprise do for developers?

FireFly Enterprise generates REST APIs for any EVM smart contract, whether it follows a common standard or not, so developers call the blockchain like any other web service. It also runs an event bus that handles retries, confirms finality and sequences complex transactions automatically, which keeps data flowing reliably between your systems and the chain.

Which blockchains does FireFly Enterprise connect to?

FireFly Enterprise connects to public EVM networks such as Ethereum, Polygon and Arbitrum, and to permissioned networks such as Besu, through FireFly Connectors. Its connector framework is built for adding new protocols, so your applications keep the same API when you add a chain.

How does FireFly Enterprise scale?

FireFly Enterprise runs as cloud-native microservices on Kubernetes, so each component scales independently as transaction volume grows. You can run it as managed SaaS on Kaleido or deploy it in your own Kubernetes environment, and the same architecture supports applications that span several chains and protocols.

What can we build with FireFly Enterprise?

You can use FireFly Enterprise as the middleware layer for stablecoins, tokenized securities, tokenized deposits, CBDCs and fund platforms. Kaleido's own Tokenize and Custody products run on the same orchestration layer, so you can start with FireFly and add Kaleido's digital asset products later without re-integrating.

Why use FireFly Enterprise instead of building blockchain integration ourselves?

FireFly Enterprise replaces the integration work your team would otherwise build and maintain itself: learning each protocol, writing transaction retry and finality logic, and keeping a separate integration for every chain. FireFly provides generated APIs, a reliable event bus and a connector framework out of the box, so your developers spend their time on business logic.

Explore our other product lines:

Digital Assets

Create, onboard, and custody digital assets, and correlate on-chain activity to your financial systems with pluggable integrations for compliance and policy to build your future financial rails.
Learn more

Chain Infrastructure

Deploy and scale production-ready blockchain networks on your protocol of choice with enterprise-grade security, 99.99% uptime SLAs, and automated lifecycle management across any cloud, hybrid, or on‑prem environment.
Learn more

A platform for any digital asset & any use case

From tokenized securities and RWAs to stablecoins and deposits, our platform provides a single, unified foundation for your entire digital asset strategy.

Any asset

Stablecoins
Tokenized deposits
Tokenized funds
CBDCs
Digital securities
Commodities
Bonds
+ more

Any use case

Cross-border payments
Treasury management
Trade finance
Traceability
Foreign exchange
Remittance
Digital money issuance
+ more

Kaleido is the #1 digital asset and blockchain platform on G2

Learn why companies ranging from large global institutions to cutting-edge start-ups have chosen Kaleido as the #1 asset tokenization and blockchain as a service provider.
Ranked #1 Asset Tokenization Platform on G2
Ranked #1 Blockchain-aaS Platform on G2
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