Aster DEX Trading Skill
Aster DEX is a next-generation perpetual futures and spot exchange backed by YZi Labs. This skill provides trading capabilities through the aster MCP server.
Available MCP Tools
Market Data (no auth required)
| Tool | Description |
|---|---|
ping |
Test Aster API connectivity |
get_ticker |
24h ticker / latest price for a futures symbol |
get_order_book |
Order book depth (bids/asks) |
get_klines |
Candlestick/K-line data (1m, 5m, 1h, 4h, 1d) |
get_funding_rate |
Current funding rate and mark price |
get_funding_info |
Funding rate configuration |
get_exchange_info |
Exchange rules and contract specifications |
get_spot_ticker |
24h spot ticker |
get_spot_price |
Latest spot price |
get_spot_order_book |
Spot order book depth |
get_spot_klines |
Spot candlestick data |
get_spot_exchange_info |
Spot trading rules |
Account (requires configured account)
| Tool | Description |
|---|---|
get_balance |
Futures account balance |
get_positions |
Open positions (optionally filtered by symbol) |
get_account_info |
Account info with position summary |
get_account_v4 |
Full account info (assets + positions) |
get_income |
PnL and fee flow (TRANSFER, REALIZED_PNL, FUNDING_FEE, COMMISSION) |
get_commission_rate |
Trading fee rate for a symbol |
get_leverage_bracket |
Leverage tier brackets |
get_spot_account |
Spot account balances (free/locked) |
Futures Orders
| Tool | Description |
|---|---|
create_order |
Place order (LIMIT, MARKET, STOP, STOP_MARKET) |
cancel_order |
Cancel by order_id or client_order_id |
cancel_all_orders |
Cancel all open orders for a symbol |
get_order |
Query single order |
get_open_orders |
List current open orders |
get_all_orders |
Order history |
get_my_trades |
Trade/fill history |
Spot Orders
| Tool | Description |
|---|---|
create_spot_order |
Place spot order |
cancel_spot_order |
Cancel spot order |
cancel_spot_all_orders |
Cancel all spot orders for a symbol |
get_spot_order |
Query spot order |
get_spot_open_orders |
List open spot orders |
get_spot_all_orders |
Spot order history |
get_spot_my_trades |
Spot trade history |
get_spot_transaction_history |
Spot transaction flow |
get_spot_commission_rate |
Spot fee rate |
Position & Risk Management
| Tool | Description |
|---|---|
set_leverage |
Set leverage multiplier for a symbol |
set_margin_mode |
Set ISOLATED or CROSSED margin |
transfer_funds |
Transfer between spot and futures (type 1=spot->futures, 2=futures->spot) |
transfer_spot_futures |
Spot-futures transfer (SPOT_FUTURE or FUTURE_SPOT) |
System
| Tool | Description |
|---|---|
get_server_info |
MCP server info, configured accounts, tool count |
Setup
API keys are managed exclusively through the encrypted config:
# Configure HMAC account
aster-mcp config
# Configure EIP-712 (V3) account
aster-mcp config --account-id main --auth-type v3
# List configured accounts
aster-mcp list
# Test connectivity
aster-mcp test main
Keys are stored with Fernet encryption in ~/.config/aster-mcp/.
Risk & Safety Rules
CRITICAL: These rules are mandatory for all trading operations.
User confirmation required: ALWAYS confirm with the user before placing ANY order. Display the full order details (symbol, side, type, quantity, price, leverage) and ask for explicit approval.
Position size disclosure: Before executing, show:
- Position size in USD equivalent
- Current leverage setting
- Estimated liquidation price (if available)
- Current account balance and margin usage
Leverage warnings:
- Aster supports up to 1,001x leverage
- For leverage > 10x: note elevated risk
- For leverage > 20x: display explicit warning about liquidation risk
- For leverage > 50x: strongly advise against unless user is experienced
- For leverage > 100x: refuse unless user explicitly confirms understanding of extreme risk
Never auto-execute: No order placement without user seeing a preview and confirming.
Rate limits: Respect Aster API rate limits. If receiving 429 responses, back off and inform the user.
Security Constraints
- API keys are managed ONLY through
aster-mcp config(Fernet encrypted) - NEVER log, display, or output full API keys or secrets
- NEVER commit credentials to git
- NEVER store API keys in plain text files
- Config directory:
~/.config/aster-mcp/(encrypted)
Common Workflows
Check a price
1. Call get_ticker with symbol="BTCUSDT"
2. Display: last price, 24h change %, 24h volume
Place a limit buy order
1. Call get_ticker to show current price
2. Call get_balance to show available margin
3. Present order preview: symbol, side=BUY, type=LIMIT, quantity, price
4. Wait for user confirmation
5. Call create_order with confirmed parameters
6. Display order result (orderId, status, filled quantity)
Close a position
1. Call get_positions to show open positions
2. Identify the position to close
3. Create a closing order (opposite side, reduce_only=true)
4. Wait for user confirmation
5. Execute and display result
Check portfolio
1. Call get_balance for margin/PnL overview
2. Call get_positions for open positions
3. Call get_open_orders for pending orders
4. Present consolidated portfolio view
Symbol Format
Symbols accept both formats and are normalized internally:
BTCUSDTorBTC/USDT->BTCUSDTETHUSDTorETH/USDT->ETHUSDT
API Base URLs
| Type | URL |
|---|---|
| Futures REST | https://fapi.asterdex.com |
| Spot REST | https://sapi.asterdex.com |
| WebSocket | wss://fstream.asterdex.com |
ML-Informed Trading Patterns
Signal Generation Workflow
1. Fetch candles: get_klines(symbol, interval="1h", limit=500)
2. Calculate indicators: RSI, MACD, Bollinger Bands, ATR
3. Run ML model: feature engineering → prediction → confidence score
4. Generate signal: BUY/SELL/HOLD with confidence (0.0-1.0)
5. Position sizing: Kelly criterion or fixed fractional (see finance-ml skill)
6. Risk check: get_balance() + get_positions() → verify margin availability
7. Present to user with full details (MANDATORY confirmation)
8. Execute if confirmed: create_order(...)
Key Technical Indicators for Crypto
| Indicator | Bullish Signal | Bearish Signal |
|---|---|---|
| RSI(14) | Below 30 (oversold) | Above 70 (overbought) |
| MACD | Signal line crossover up | Signal line crossover down |
| Bollinger Bands | Price touches lower band | Price touches upper band |
| Funding Rate | Negative (shorts paying) | Very positive (longs paying) |
| Volume | Increasing on uptrend | Increasing on downtrend |
Risk Management Integration
- Always check funding rate before entering perpetual positions
- Use ATR-based stop losses: stop = entry ± (ATR × multiplier)
- Maximum position size: never risk more than 2% of account per trade
- Correlation check: don't hold multiple highly correlated positions
Cross-References
- finance-ml skill: ML models, feature engineering, risk metrics, backtesting
- FINANCE_ML_STACK.md: Comprehensive financial ML reference