Onchain CLI

CLI for crypto portfolio tracking, market data, and CEX history.

Invocation

code

onchain <command>

Commands

Market Data

bash

onchain price <token>         # Token price (btc, eth, sol, etc.)
onchain markets               # Market overview with trending

Wallet Data

bash

onchain balance [address]           # Token balances (auto-detects EVM/Solana)
onchain balance --chain polygon     # Filter by chain
onchain history [address]           # Transaction history
onchain portfolio [address]         # Full portfolio with DeFi positions

CEX Data

bash

onchain coinbase balance      # Coinbase balances
onchain coinbase history      # Coinbase trade history
onchain binance balance       # Binance balances
onchain binance history       # Binance trade history

Prediction Markets

bash

onchain polymarket trending          # Trending markets
onchain polymarket search <query>    # Search markets
onchain polymarket view <slug>       # View market details

Configuration

bash

onchain setup                 # Interactive setup wizard
onchain config                # View current config
onchain config wallet add <name> <address>
onchain config wallet set-default <name>

Global Options

•--json - Output as JSON (agent-friendly)
•--plain - Disable colors and emoji
•--timeout <ms> - Request timeout

Configuration

Config file: ~/.config/onchain/config.json5

Required API Keys

Feature	API Key	Get Key
EVM wallets	`DEBANK_API_KEY`	DeBank
Solana wallets	`HELIUS_API_KEY`	Helius
Coinbase CEX	`COINBASE_API_KEY` + `COINBASE_API_SECRET`	Coinbase
Binance CEX	`BINANCE_API_KEY` + `BINANCE_API_SECRET`	Binance

Optional API Keys

Feature	API Key	Notes
Market data	`COINGECKO_API_KEY`	Free tier works, Pro for higher limits
Market fallback	`COINMARKETCAP_API_KEY`	Alternative market data source

Examples

Get Bitcoin price

bash

onchain price btc

Check wallet balance

bash

onchain balance 0x1234...5678

View portfolio with DeFi positions

bash

onchain portfolio main  # Uses saved wallet named "main"

Get trending prediction markets

bash

onchain polymarket trending -n 5

JSON output for scripts

bash

onchain --json price eth | jq '.priceUsd'

Supported Chains

EVM (via DeBank)

Ethereum, BNB Chain, Polygon, Arbitrum, Optimism, Avalanche, Base, zkSync Era, Linea, Scroll, Blast, Mantle, Gnosis, Fantom, Celo, and more.

Solana (via Helius)

Full Solana mainnet support including SPL tokens and NFTs.

Agent Integration

This CLI is designed for agent use. Key patterns:

•Always use --json for programmatic access
•Check exit codes - 0 for success, 1 for error
•Use saved wallets - Configure once with onchain setup, reference by name
•Rate limiting - APIs have rate limits, add delays between rapid calls

Example Agent Usage

bash

# Get portfolio value
VALUE=$(onchain --json portfolio main | jq -r '.totalValueUsd')

# Get price with change
onchain --json price btc | jq '{price: .priceUsd, change24h: .priceChange24h}'

# Check if market is bullish
CHANGE=$(onchain --json markets | jq '.marketCapChange24h')