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Incubation Notice

This project is a Hyperledger project in Incubation. It was proposed to the community and documented here. Information on what Incubation entails can be found in the Hyperledger Project Lifecycle document.


Fabric-API comes with a client API.

While this project represents the fruit of many man-years of development, it is still a work in progress and we are in the process of replacing several components, adding others, and integrating with other open source projects. This particularly relates to security, scalability, and privacy.

Fabric-API was built with the requirements of enterprise architecture in mind by a team that has worked in financial institutions for decades. It has a highly modular design at both the code and runtime levels to allow for integrations with legacy systems.

Building and running


Version numbers below indicate the versions used.

Optionally a JMS bus provider

Installing Prerequisites on OSX

  • brew update
  • brew tap homebrew/versions
  • brew install git
  • brew install maven
  • Download and install the latest Java 8 dmg file from Oracle
  • Download Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files for JDK/JRE 8 from Oracle, which is a zip file. Extract it and copy the local_policy.jar and US_export_policy.jar files to your <java_runtime_home>/lib/security
  • brew install protobuf250
  • brew install procmail if the command lockfile is not available on your OSX version
  • Prerequisites for building secp256k1
  • brew install automake
  • brew install libtool
  • You must have JNI installed. Install Xcode. Next, install the Xcode command line tools using the xcode-select --install command. You should now have /System/Library/Frameworks/JavaVM.framework/Headers/jni.h
  • Ensure the $JAVA_HOME environmental variable is unset.

Installing Prerequisites on Ubuntu Linux

  • add-apt-repository ppa:webupd8team/java
  • apt-get update
  • apt-get install git maven oracle-java8-installer
  • apt-get install oracle-java8-unlimited-jce-policy protobuf-compiler
  • apt-get install procmail

Building Steps

  • git clone
  • cd fabric-api
  • mvn clean package -Djava.library.path=<secp256k1_lib_path>


How to contribute?

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