Sei Technical Reference

This guide serves as a comprehensive reference for Sei node operators and validators, providing detailed command syntax, configuration parameters, and troubleshooting procedures. For API documentation, please refer to our API Documentation section.

Command Line Interface Reference

The seid binary provides extensive functionality for managing your Sei node. Understanding these commands is essential for effective node operation and troubleshooting.

Node Management Commands

These commands help you control and monitor your node’s operation:

If you see an error such as panic: recovered: runtime error: integer divide by zero it means you can’t start nodes straight from the genesis file. Instead, sync to the block tip via state sync or using a snapshot.

# Start the node
seid start [flags]

# Show node status
seid status

# Show validator consensus key
seid tendermint show-validator

# Query node information
seid query node info

Key Management

Proper key management is crucial for security. These commands help you manage your keys effectively:

# Create new key
seid keys add <name> [flags]

# List all keys
seid keys list

# Delete key
seid keys delete <name>

# Export key (encrypted)
seid keys export <name>

# Import key
seid keys import <name> <keyfile>

# Show key address
seid keys show <name> -a

Transaction Commands

These commands allow you to interact with the blockchain:

# Send tokens
seid tx bank send <from-key> <to-address> <amount>usei [flags]

# Delegate tokens
seid tx staking delegate <validator-addr> <amount>usei --from <delegator-key>

# Withdraw rewards
seid tx distribution withdraw-rewards <validator-addr> --from <delegator-key>

# Edit validator
seid tx staking edit-validator [flags] --from <validator-key>

Configuration Parameters

Understanding configuration parameters is essential for optimizing your node’s performance and security.

App.toml Parameters

The app.toml file controls application-specific settings:

Complete app.toml Configuration

# Minimum gas prices for transaction acceptance
minimum-gas-prices = "0.02usei"

# API configuration
[api]
enable = true
swagger = true
address = "tcp://0.0.0.0:1317"
max-open-connections = 1000

# State sync configuration
[state-sync]
snapshot-interval = 1000
snapshot-keep-recent = 2

# Memory management
[mempool]
size = 5000
max-txs-bytes = 1073741824
cache-size = 10000

# State store configuration
[state-store]
ss-enable = true
ss-backend = "pebbledb"
ss-keep-recent = 100000
ss-prune-interval = 600

Config.toml Parameters

The config.toml file controls the core consensus engine and networking:

Complete config.toml Configuration

# P2P Configuration
[p2p]
laddr = "tcp://0.0.0.0:26656"
external-address = ""
seeds = ""
persistent_peers = ""
upnp = false
max_num_inbound_peers = 40
max_num_outbound_peers = 10
allowed_pools = ""
max_packet_msg_payload_size = 10240
handshake_timeout = "20s"
dial_timeout = "3s"

# RPC Configuration
[rpc]
laddr = "tcp://0.0.0.0:26657"
cors_allowed_origins = []
cors_allowed_methods = ["HEAD", "GET", "POST"]
cors_allowed_headers = ["Origin", "Accept", "Content-Type", "X-Requested-With", "X-Server-Time"]
max_open_connections = 900
timeout_broadcast_tx_commit = "10s"

# Consensus Configuration
[consensus]
wal_file = "data/cs.wal/wal"
timeout_propose = "3s"
timeout_propose_delta = "500ms"
timeout_prevote = "1s"
timeout_prevote_delta = "500ms"
timeout_precommit = "1s"
timeout_precommit_delta = "500ms"
timeout_commit = "1s"
double_sign_check_height = 0

Network Parameters

Understanding network parameters helps you operate your node effectively.

Chain Parameters

These parameters define the network’s behavior:

Block Time: ~400ms target
Max Validators: 40
Unbonding Period: 21 days
Minimum Self Delegation: 1 SEI

Slashing Parameters:
  - signed_blocks_window:        108,000 blocks
  - min_signed_per_window:       5%   (validator must sign ≥5% of blocks in the window)
  - downtime_jail_duration:      10 minutes
  - slash_fraction_downtime:     0%   (no stake slash; jail only)
  - slash_fraction_double_sign:  0%   (no stake slash; double-signing still triggers
                                       permanent tombstoning)

These values reflect the current on-chain parameters. Query them directly with seid query staking params and seid query slashing params for the source of truth. Per-validator settings (e.g. commission rate, commission max change rate) are configured per validator and are not chain-level parameters.

File Locations

Understanding the purpose and location of important files helps with maintenance and troubleshooting:

$HOME/.sei/
├── config/
│   ├── app.toml         # Application configuration
│   ├── client.toml      # Client configuration
│   ├── config.toml      # Tendermint configuration
│   ├── genesis.json     # Chain genesis file
│   ├── node_key.json    # Node identity key
│   └── priv_validator_key.json  # Validator signing key
├── data/
│   ├── application.db   # Application state
│   ├── blockstore.db    # Block data
│   ├── cs.wal/         # Consensus write-ahead logs
│   ├── evidence.db     # Evidence of misbehavior
│   ├── state.db        # Tendermint state
│   └── tx_index.db     # Transaction index
└── keyring-file/       # Local key storage

This reference guide provides essential technical information for operating Sei nodes and validators. For API documentation and other detailed specifications, please refer to the respective sections in our documentation set.

​Command Line Interface Reference

​Node Management Commands

​Key Management

​Transaction Commands

​Configuration Parameters

​App.toml Parameters

​Config.toml Parameters

​Network Parameters

​Chain Parameters

​File Locations

Command Line Interface Reference

Node Management Commands

Key Management

Transaction Commands

Configuration Parameters

App.toml Parameters

Config.toml Parameters

Network Parameters

Chain Parameters

File Locations