# Install

# Requirements

Thor requires Go 1.12+ and C compiler to build. To install Go, follow this link.

# Getting the source

Clone the Thor repo:

git clone https://github.com/vechain/thor.git
cd thor

# Dependency management

Simply run:

make dep

If you keep getting network error, it is suggested to use Go Module Proxy. https://proxy.golang.org/ is one option.

# Building

To build the main app thor, just run


or build the full suite:

make all

If no error reported, all built executable binaries will appear in folder bin.

# Running Thor

Connect to VeChain's mainnet:

bin/thor --network main

Connect to VeChain's testnet:

bin/thor --network test

or startup a custom network

bin/thor --network <custom-net-genesis.json>

example genesis config file can be found at genesis/example.json.

To find out usages of all command line options:

bin/thor -h
  • --network value the network to join (main|test) or path to genesis file
  • --data-dir value directory for block-chain databases
  • --cache value megabytes of ram allocated to internal caching (default: 2048)
  • --beneficiary value address for block rewards
  • --target-gas-limit value target block gas limit (adaptive if set to 0) (default: 0)
  • --api-addr value API service listening address (default: "localhost:8669")
  • --api-cors value comma separated list of domains from which to accept cross origin requests to API
  • --api-timeout value API request timeout value in milliseconds (default: 10000)
  • --api-call-gas-limit value limit contract call gas (default: 50000000)
  • --api-backtrace-limit value limit the distance between position and best block for subscriptions APIs (default: 1000)
  • --verbosity value log verbosity (0-9) (default: 3)
  • --max-peers value maximum number of P2P network peers (P2P network disabled if set to 0) (default: 25)
  • --p2p-port value P2P network listening port (default: 11235)
  • --nat value port mapping mechanism (any|none|upnp|pmp|extip:<IP>) (default: "none")
  • --bootnode value comma separated list of bootnode IDs
  • --skip-logs skip writing event|transfer logs (/logs API will be disabled)
  • --pprof turn on go-pprof
  • --disable-pruner disable state pruner to keep all history
  • --help, -h show help
  • --version, -v print the version

# Sub-commands

  • solo client runs in solo mode for test & dev
bin/thor solo --on-demand               # create new block when there is pending transaction
bin/thor solo --persist                 # save blockchain data to disk(default to memory)
bin/thor solo --persist --on-demand     # two options can work together
  • master-key master key management
# print the master address
bin/thor master-key

# export master key to keystore
bin/thor master-key --export > keystore.json

# import master key from keystore
cat keystore.json | bin/thor master-key --import

# Docker

This method needs running all commands by docker with the data directory mapped to the container.

# Pull image

docker pull vechain/thor

# Export Master Key

First, start an interactive shell by docker:

docker run -it --rm\
-v {path-to-your-data-directory}:/root/.org.vechain.thor\
--entrypoint /bin/sh vechain/thor

Then export master key in the shell:

thor master-key --export > /root/.org.vechain.thor/keystore.json

Enter your password and check the generated file, then exit.

# Import Master Key

docker run -it --rm\
-v {path-to-your-data-directory}:/root/.org.vechain.thor\
vechain/thor master-key --import

Follow the instruction by the program, input the KeyStore and also the password.

# Check Master Key

docker run -it --rm\
-v {path-to-your-data-directory}:/root/.org.vechain.thor\
vechain/thor master-key

This command will print the Master Key.

# Start the Authority Masternode

docker run -d\
-v {path-to-your-data-directory}:/root/.org.vechain.thor\
-p -p 11235:11235 -p 11235:11235/udp\
--name thor-node vechain/thor --network main --skip-logs

# Public Nodes

Public nodes are available for development and testing. The URLs are as follows:


The public nodes are not designed for the production environment, and VeChain Foundation does not guarantee the reliability and availability.

VeBlocks Public Nodes is a community project to support all developers and allow them everywhere-access to the blockchain, without the need to have a full node with them.For more information please visit VeBlocks Public Nodes