Stable Full Node

Stable is the first Stablechain — a dedicated payments Layer 1 where stablecoins like USDT are used natively for gas and settlement.

Chaind ID	Last Version Tag
stabletestnet_2201-1	v1.1.2

Service	URL
RPC	https://stable-testnet-rpc.linknode.org
JSON-RPC	https://stable-testnet-evmrpc.linknode.org
API	https://stable-testnet-api.linknode.org
gRPC	https://stable-testnet-grpc.linknode.org
Resource	https://vault.astrostake.xyz/testnet/stable
Dashboard	https://astrostake.xyz/networks/stable-testnet

Requirements

CPU: 8 Cores
Memory: 16GB RAM
Disk: 1 TB of storage (NVME)
Bandwidth: 100 Mbps (Download / Upload)

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Binary Upgrade

Upgrade to v1.1.2

Target block: 34649300

Download & Extract Binary

bash

cd $HOME
rm -rf stable-build
mkdir -p stable-build
cd stable-build
wget https://stable-testnet-data.s3.us-east-1.amazonaws.com/stabled-1.1.2-linux-amd64-testnet.tar.gz
tar -xvzf stabled-1.1.2-linux-amd64-testnet.tar.gz

Start a new `tmux` session

bash

tmux new -s stable-upgrade

Install required dependencies (recommended)

The upgrade bot requires a few command-line tools:

jq (JSON parser)
bc (math calculator)
curl (HTTP request)
websocat (WebSocket client — required for fast-mode)

Install them with:

bash

sudo apt update
sudo apt install -y jq bc curl

# Install websocat (WebSocket client)
wget https://github.com/vi/websocat/releases/download/v1.11.0/websocat.x86_64-unknown-linux-musl -O /usr/local/bin/websocat
chmod +x /usr/local/bin/websocat

# Verify installation
websocat --version

Run the auto-upgrade script.

⚠️ NOTE: Make sure you adjust the following according to your setup:

RPC port: use your own RPC endpoint after -r (default is http://localhost:26657)
API port: use your own REST API endpoint after -a (default is http://localhost:1317)

bash

UPGRADE_SCRIPT="https://raw.githubusercontent.com/astrostake/scripts/refs/heads/main/upgrade_binary_v2.sh"

curl -sL $UPGRADE_SCRIPT | bash -s -- \
-b "stabled" \
-t "34649300" \
-n "$HOME/stable-build/stabled" \
-p "/usr/local/bin" \
-r "http://localhost:13657" \
-a "http://localhost:13317" \
-d "https://discord.com/api/webhooks/xxx/yyy" \ # optional
--progress-interval 0

Flag explanation:

Flag	Name	Description
`-b`	binary-name	Name of the running daemon (e.g. `stabled`)
`-t`	target-block	Block height at which the upgrade should happen
`-n`	new-binary-path	Full path to the new binary
`-p`	install-path	Path where the current binary is installed (default: `$HOME/go/bin`)
`-r`	rpc-url	RPC endpoint used to monitor current block height
`-i`	proposal-id	(Optional) Proposal ID to validate governance status
`-a`	api-url	(Optional) API endpoint used to fetch proposal status

Auto Installer

bash

bash <(curl -sL https://raw.githubusercontent.com/astrostake/scripts/refs/heads/main/stable-testnet/installer.sh)

Manual Installation

1. Install Dependencies

bash

sudo apt update && sudo apt upgrade -y
sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

2. Install Go

bash

cd $HOME
VER="1.22.3"
wget "https://golang.org/dl/go$VER.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$VER.linux-amd64.tar.gz"
rm "go$VER.linux-amd64.tar.gz"
[ ! -f ~/.bash_profile ] && touch ~/.bash_profile
echo "export PATH=$PATH:/usr/local/go/bin:~/go/bin" >> ~/.bash_profile
source $HOME/.bash_profile
[ ! -d ~/go/bin ] && mkdir -p ~/go/bin

3. Download and Extract

bash

cd $HOME
rm -rf stable-build
mkdir stable-build && cd stable-build
wget https://stable-testnet-data.s3.us-east-1.amazonaws.com/stabled-1.1.2-linux-amd64-testnet.tar.gz
tar -xvzf stabled-1.1.2-linux-amd64-testnet.tar.gz
chmod +x stabled
mv stabled /usr/local/bin/
stabled version

4. Set Vars

Configuration:

Moniker

Port

Generated Code:

Loading...

5. Initiliazie the Node

bash

stabled init $MONIKER --chain-id $STABLE_CHAIN_ID

6. Download Genesis and addrbook

bash

cp ~/.stabled/config/genesis.json ~/.stabled/config/genesis.json.backup
curl -Ls https://vault.astrostake.xyz/testnet/stable/genesis.json > $HOME/.stabled/config/genesis.json 
curl -Ls https://vault.astrostake.xyz/testnet/stable/addrbook.json > $HOME/.stabled/config/addrbook.json

7. Configure Node

app.toml

bash

CONFIG="$HOME/.stabled/config"

# Enable JSON-RPC
sed -i '/^\[json-rpc\]/,/^\[/{s/^enable *=.*/enable = true/}' $CONFIG/app.toml
# RPC HTTP (8545 → 0.0.0.0:8545)
sed -i '/^\[json-rpc\]/,/^\[/{s/address = ".*/address = "0.0.0.0:8545"/}' $CONFIG/app.toml
# RPC WebSocket (8546 → 0.0.0.0:8546)
sed -i '/^\[json-rpc\]/,/^\[/{s/ws-address = ".*/ws-address = "0.0.0.0:8546"/}' $CONFIG/app.toml
# Allow unprotected txs
sed -i '/^\[json-rpc\]/,/^\[/{s/^allow-unprotected-txs *=.*/allow-unprotected-txs = true/}' $CONFIG/app.toml

Set inter-block-cache to false

bash

sed -i 's/^inter-block-cache *=.*/inter-block-cache = false/' ~/.stabled/config/app.toml

Optional: Set Custom Port

app.toml

bash

sed -i.bak -e "s%:1317%:${STABLE_PORT}317%g;
s%:8080%:${STABLE_PORT}080%g;
s%:9090%:${STABLE_PORT}090%g;
s%:9091%:${STABLE_PORT}091%g;
s%:8545%:${STABLE_PORT}545%g;
s%:8546%:${STABLE_PORT}546%g;
s%:6065%:${STABLE_PORT}065%g" $HOME/.stabled/config/app.toml

config.toml

bash

sed -i.bak -e "s%:26658%:${STABLE_PORT}658%g;
s%:26657%:${STABLE_PORT}657%g;
s%:6060%:${STABLE_PORT}060%g;
s%:26656%:${STABLE_PORT}656%g;
s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):${STABLE_PORT}656\"%;
s%:26660%:${STABLE_PORT}660%g" $HOME/.stabled/config/config.toml

Set peers

bash

SEEDS="5ed0f977a26ccf290e184e364fb04e268ef16430@37.187.147.27:26656,128accd3e8ee379bfdf54560c21345451c7048c7@37.187.147.22:26656"
PEERS="5ed0f977a26ccf290e184e364fb04e268ef16430@37.187.147.27:26656,128accd3e8ee379bfdf54560c21345451c7048c7@37.187.147.22:26656,9d1150d557fbf491ec5933140a06cdff40451dee@164.68.97.210:26656,e33988e27710ee1a7072f757b61c3b28c922eb59@185.232.68.94:11656,ff4ff638cee05df63d4a1a2d3721a31a70d0debc@141.94.138.48:26664"
sed -i -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*seeds *=.*/seeds = \"$SEEDS\"/}" \
       -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*persistent_peers *=.*/persistent_peers = \"$PEERS\"/}" $HOME/.stabled/config/config.toml

Optional: Disable Indexer

Disables the transaction indexer to reduce disk usage and I/O load. Use this if you don’t need transaction search (tx_search) or historical query support.

bash

sed -i -e "s/^indexer *=.*/indexer = \"null\"/" $CONFIG/config.toml

Configure Pruning

💡Recommended for Validators to fine-tune storage.

blocks

Loading...

8. Install Snapshot

bash

cp $HOME/.stabled/data/priv_validator_state.json $HOME/.stabled/priv_validator_state.json.backup
rm -rf $HOME/.stabled/data
curl https://vault.astrostake.xyz/testnet/stable/stable-testnet_snapshot.tar.lz4 | lz4 -dc - | tar -xf - -C $HOME/.stabled
mv $HOME/.stabled/priv_validator_state.json.backup $HOME/.stabled/data/priv_validator_state.json

9. Create Service

bash

sudo tee /etc/systemd/system/stabled.service > /dev/null <<EOF
[Unit]
Description=Stable Daemon Service
After=network-online.target

[Service]
User=$USER
ExecStart=/usr/local/bin/stabled start --chain-id stabletestnet_2201-1
Restart=always
RestartSec=3
LimitNOFILE=65535
StandardOutput=journal
StandardError=journal
SyslogIdentifier=stabled

[Install]
WantedBy=multi-user.target
EOF

10. Start Service

bash

sudo systemctl daemon-reload
sudo systemctl enable stabled
sudo systemctl restart stabled
sudo systemctl status stabled

Useful Commands

Check logs

bash

sudo journalctl -u stabled -fo cat

Check Sync

bash

curl -sL https://raw.githubusercontent.com/astrostake/scripts/refs/heads/main/cosmos_sync_monitor.sh | bash -s -- --directory $HOME/.stabled --public-rpc https://stable-testnet-rpc.linknode.org --interval 5

🛡️ Security

To apply a quick security baseline, you can configure your firewall like this:

bash

sudo ufw allow ${STABLE_PORT}656/tcp comment 'STABLE Node p2p Port'

🔐 For a more secure and maintainable setup, check out our Essentials Guide, including SSH key setup, Fail2Ban protection, and a full VPS hardening checklist.

Delete Validator

⚠️ Critical: Backup Your Validator Key!

Make sure to backup priv_validator_key.json and priv_validator_state.json. Do not lose this key — it is required to run your validator.

File location: ~/.stabled/config/priv_validator_key.json ~/.stabled/data/priv_validator_state.json

bash

cd $HOME
sudo systemctl stop stabled
sudo systemctl disable stabled
sudo rm /etc/systemd/system/stabled.service
sudo systemctl daemon-reload
sudo rm -f $(which stabled)
sudo rm -rf $HOME/.stabled
sudo rm -rf $HOME/stable

Stable Full Node ​

Requirements ​

💡 Need a reliable VPS to run this node? ​

Binary Upgrade ​

Download & Extract Binary ​

Start a new tmux session ​

Install required dependencies (recommended) ​

Run the auto-upgrade script. ​

Auto Installer ​

Manual Installation ​

1. Install Dependencies ​

2. Install Go ​

3. Download and Extract ​

4. Set Vars ​

Configuration:

Generated Code:

5. Initiliazie the Node ​

6. Download Genesis and addrbook ​

7. Configure Node ​

8. Install Snapshot ​

9. Create Service ​

10. Start Service ​

Useful Commands ​

🛡️ Security ​

Delete Validator ​

Stable Full Node

Requirements

💡 Need a reliable VPS to run this node?

Binary Upgrade

Download & Extract Binary

Start a new `tmux` session

Install required dependencies (recommended)

Run the auto-upgrade script.

Auto Installer

Manual Installation

1. Install Dependencies

2. Install Go

3. Download and Extract

4. Set Vars

5. Initiliazie the Node

6. Download Genesis and addrbook

7. Configure Node

8. Install Snapshot

9. Create Service

10. Start Service

Useful Commands

🛡️ Security

Delete Validator