Skip to content
An open source smart contract platform
C++ WebAssembly Python Shell CMake C
Branch: master
Clone or download
Latest commit 1418543 Jul 9, 2019
Type Name Latest commit message Commit time
Failed to load latest commit information.
.github Other: Added checkbox to pull request template Jan 7, 2019
CMakeModules Fixes for boost 1.70 May 14, 2019
debian Rename eosiod to nodeos and eosioc to cleos and update docs and scripts. Mar 19, 2018
docs remove additional generated doxygen files Jul 17, 2018
images Relocate wiki images and remove unused Doxyfile. Jun 1, 2018
libraries Consolidated Security Fixes for 1.8.1 Jul 8, 2019
plugins Use new fc::logger::update to update logger Jun 28, 2019
programs Call new fc::log_config::initialize_appenders Jun 28, 2019
scripts indicate in brew bottle mojave is required Jul 8, 2019
tests bats fix Jul 2, 2019
tools Fixing encoding error on some platforms. Dec 27, 2018
tutorials/bios-boot-tutorial Merge pull request #6878 from iamveritas/ovi/eos_bios_boot_tutorial Apr 10, 2019
unittests Use debug level logging when --verbose output requested May 11, 2019
.gitignore copy scripts dir from bats-v3 + tests/bash-bats tests + pipeline.json… Jun 3, 2019
.gitlab-ci.yml Standard optimization Docker build Sep 3, 2017
.gitmodules Merge branch 'develop' into protocol-feature-foundations Feb 22, 2019
CMakeLists.txt Bump version to 1.8.1 Jul 9, 2019 Create Mar 28, 2019
LICENSE Update LICENSE Mar 28, 2019 Bump version to 1.8.1 Jul 9, 2019 update other version numbers to 1.0 and cleanup Jun 1, 2018 separate out version suffix so that RPM packages produce an acceptabl… Nov 27, 2018
pipeline.jsonc removed lrt from pipeline.jsonc Jun 20, 2019
testnet.template forgot to rename preactivate to activate in testnet.template Apr 17, 2019

EOSIO - The Most Powerful Infrastructure for Decentralized Applications

Build status

Welcome to the EOSIO source code repository! This software enables businesses to rapidly build and deploy high-performance and high-security blockchain-based applications.

Some of the groundbreaking features of EOSIO include:

  1. Free Rate Limited Transactions
  2. Low Latency Block confirmation (0.5 seconds)
  3. Low-overhead Byzantine Fault Tolerant Finality
  4. Designed for optional high-overhead, low-latency BFT finality
  5. Smart contract platform powered by WebAssembly
  6. Designed for Sparse Header Light Client Validation
  7. Scheduled Recurring Transactions
  8. Time Delay Security
  9. Hierarchical Role Based Permissions
  10. Support for Biometric Hardware Secured Keys (e.g. Apple Secure Enclave)
  11. Designed for Parallel Execution of Context Free Validation Logic
  12. Designed for Inter Blockchain Communication

EOSIO is released under the open source MIT license and is offered “AS IS” without warranty of any kind, express or implied. Any security provided by the EOSIO software depends in part on how it is used, configured, and deployed. EOSIO is built upon many third-party libraries such as WABT (Apache License) and WAVM (BSD 3-clause) which are also provided “AS IS” without warranty of any kind. Without limiting the generality of the foregoing, makes no representation or guarantee that EOSIO or any third-party libraries will perform as intended or will be free of errors, bugs or faulty code. Both may fail in large or small ways that could completely or partially limit functionality or compromise computer systems. If you use or implement EOSIO, you do so at your own risk. In no event will be liable to any party for any damages whatsoever, even if it had been advised of the possibility of damage. is neither launching nor operating any initial public blockchains based upon the EOSIO software. This release refers only to version 1.0 of our open source software. We caution those who wish to use blockchains built on EOSIO to carefully vet the companies and organizations launching blockchains based on EOSIO before disclosing any private keys to their derivative software.

There is no public testnet running currently.

If you used our build scripts to install eosio, please be sure to uninstall before using our packages.

Mac OS X Brew Install

$ brew tap eosio/eosio
$ brew install eosio

Mac OS X Brew Uninstall

$ brew remove eosio

Ubuntu 18.04 Package Install

$ wget
$ sudo apt install ./eosio_1.8.1-1-ubuntu-18.04_amd64.deb

Ubuntu 16.04 Package Install

$ wget
$ sudo apt install ./eosio_1.8.1-1-ubuntu-16.04_amd64.deb

Ubuntu Package Uninstall

$ sudo apt remove eosio

Centos RPM Package Install

$ wget
$ sudo yum install ./eosio-1.8.1-1.el7.x86_64.rpm

Centos RPM Package Uninstall

$ sudo yum remove eosio

Build Script Uninstall

If you have previously installed EOSIO using build scripts, you can execute to uninstall.

  • Passing -y will answer yes to all prompts (does not remove data directories)
  • Passing -f will remove data directories (be very careful with this)
  • Passing in -i allows you to specify where your eosio installation is located

Supported Operating Systems

EOSIO currently supports the following operating systems:

  1. Amazon Linux 2
  2. CentOS 7
  3. Ubuntu 16.04
  4. Ubuntu 18.04
  5. MacOS 10.14 (Mojave)


  1. Website
  2. Blog
  3. Developer Portal
  4. StackExchange for Q&A
  5. Community Telegram Group
  6. Developer Telegram Group
  7. White Paper
  8. Roadmap

Getting Started

Instructions detailing the process of getting the software, building it, running a simple test network that produces blocks, account creation and uploading a sample contract to the blockchain can be found in Getting Started on the EOSIO Developer Portal.


Contributing Guide

Code of Conduct




See LICENSE for copyright and license terms. makes its contribution on a voluntary basis as a member of the EOSIO community and is not responsible for ensuring the overall performance of the software or any related applications. We make no representation, warranty, guarantee or undertaking in respect of the software or any related documentation, whether expressed or implied, including but not limited to the warranties or merchantability, fitness for a particular purpose and noninfringement. In no event shall we be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or documentation or the use or other dealings in the software or documentation. Any test results or performance figures are indicative and will not reflect performance under all conditions. Any reference to any third party or third-party product, service or other resource is not an endorsement or recommendation by We are not responsible, and disclaim any and all responsibility and liability, for your use of or reliance on any of these resources. Third-party resources may be updated, changed or terminated at any time, so the information here may be out of date or inaccurate.

You can’t perform that action at this time.