BloFin Trader

Execute trades on BloFin exchange. Supports market, limit, post-only, FOK, IOC orders, batch operations, TP/SL, and algo/trigger orders.

CRITICAL: Always confirm order details with the user before placing any trade. Display the instrument, side, size, price, and estimated cost/margin before execution.

Order Basics

Order Types

Type	Description
market	Execute immediately at best available price
limit	Execute at specified price or better
post_only	Limit order that only adds liquidity (maker only); cancelled if it would match immediately
fok	Fill or Kill — must fill entirely immediately or cancel
ioc	Immediate or Cancel — fill what's possible immediately, cancel the rest

Position Sides

Side	Position Side	Action
buy	long	Open long / close short
sell	short	Open short / close long
buy	short	Close short (in hedge mode)
sell	long	Close long (in hedge mode)

Size & Contract Value

• Order size is in contracts, not in base currency
• Each contract has a contractValue (check via get_instruments)
• Example: BTC-USDT contract value is 0.001 BTC, so 100 contracts = 0.1 BTC
• Minimum order size is defined by minSize (e.g., 0.1 contracts for BTC-USDT)
• Size must be a multiple of lotSize

Available Tools (via blofin-mcp)

place_order — Place a Single Order

Use place_order to submit a new trade. ALWAYS confirm with the user first.

Parameters:

Parameter	Type	Required	Description
instId	String	Yes	Instrument ID, e.g. BTC-USDT
marginMode	String	Yes	cross or isolated
positionSide	String	Yes	long, short, or net
side	String	Yes	buy or sell
orderType	String	Yes	market, limit, post_only, fok, ioc
size	String	Yes	Order size in contracts
price	String	Conditional	Required for limit/post_only/fok/ioc orders
reduceOnly	Boolean	No	If true, only reduces existing position
clientOrderId	String	No	Custom order ID (max 32 chars)
tpTriggerPrice	String	No	Take-profit trigger price
tpOrderPrice	String	No	TP order price (-1 for market)
slTriggerPrice	String	No	Stop-loss trigger price
slOrderPrice	String	No	SL order price (-1 for market)
brokerId	String	No	Broker ID if applicable

Example prompts:

• "Buy 1 BTC-USDT contract at market price"
• "Place a limit buy for 10 ETH-USDT at $3,000"
• "Open a 5x long BTC position with 100 contracts"
• "Short ETH-USDT with a stop loss at $4,000"

Pre-order checklist (always do this before placing):

1. Confirm instrument exists and is live (get_instruments)
2. Verify user has sufficient balance (get_balance)
3. Check current leverage setting (get_leverage_info)
4. For limit orders, compare price to current market (get_tickers)
5. Calculate estimated cost: size * contractValue * price / leverage
6. Display order summary and get explicit user confirmation

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cancel_order — Cancel an Order

Use cancel_order to cancel a pending order.

Parameters:

Parameter	Type	Required	Description
instId	String	Yes	Instrument ID
orderId	String	Conditional	Order ID (either orderId or clientOrderId required)
clientOrderId	String	Conditional	Client order ID

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batch_orders — Place Multiple Orders

Use batch_orders for placing multiple orders at once. Max 20 orders per batch.

All orders in a batch must share the same instId and marginMode.

Example prompts:

• "Place a grid of limit orders for BTC-USDT from $60,000 to $65,000"
• "Open both a long and short position on ETH"

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cancel_batch_orders — Cancel Multiple Orders

Use cancel_batch_orders to cancel multiple orders at once.

All cancellations should use the same identifier type (prefer orderId).

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close_position — Close an Entire Position

Use close_position to close a full position on an instrument. Confirm with the user first.

Parameters:

Parameter	Type	Required	Description
instId	String	Yes	Instrument ID
marginMode	String	Yes	cross or isolated
positionSide	String	No	long, short, or net
clientOrderId	String	No	Custom order ID

Example prompts:

• "Close my BTC-USDT long position"
• "Close all my ETH positions"

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get_open_orders — View Pending Orders

Use get_open_orders to see unfilled or partially filled orders.

Parameters:

Parameter	Type	Required	Description
instId	String	No	Filter by instrument
orderType	String	No	Filter by order type
state	String	No	live or partially_filled
before / after	String	No	Pagination by orderId
limit	String	No	Max 100, default 100

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get_order_detail — Single Order Details

Use get_order_detail to check the status of a specific order.

Parameters:

Parameter	Type	Required	Description
instId	String	Yes	Instrument ID
orderId	String	Conditional	Order ID
clientOrderId	String	Conditional	Client order ID

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get_order_history — Past Orders

Use get_order_history to review filled, cancelled, or expired orders.

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Take-Profit / Stop-Loss (TP/SL)

place_tpsl — Attach TP/SL to a Position

Use place_tpsl to set take-profit and/or stop-loss on an existing position.
Always confirm trigger prices with the user.

Parameters:

Parameter	Type	Required	Description
instId	String	Yes	Instrument ID
marginMode	String	Yes	cross or isolated
positionSide	String	Yes	long, short, or net
tpTriggerPrice	String	Conditional	Take-profit trigger price
tpOrderPrice	String	No	TP execution price (-1 for market)
slTriggerPrice	String	Conditional	Stop-loss trigger price
slOrderPrice	String	No	SL execution price (-1 for market)
size	String	No	Size to close (default: full position)

TP/SL validation rules:

• Long position: TP trigger > current price, SL trigger < current price
• Short position: TP trigger < current price, SL trigger > current price
• Always verify against current market price before placing

Example prompts:

• "Set a take profit at $70,000 and stop loss at $60,000 for my BTC long"
• "Add a stop loss at $3,200 for my ETH short"

cancel_tpsl — Cancel TP/SL Orders

Use cancel_tpsl to remove existing TP/SL orders.

get_pending_tpsl / get_tpsl_history — View TP/SL Orders

Use get_pending_tpsl to see active TP/SL orders.
Use get_tpsl_history to review past TP/SL orders.

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Algo / Trigger Orders

place_algo_order — Conditional/Trigger Orders

Use place_algo_order for trigger-based orders that execute when a condition is met.

Parameters:

Parameter	Type	Required	Description
instId	String	Yes	Instrument ID
marginMode	String	Yes	cross or isolated
positionSide	String	Yes	long, short, or net
side	String	Yes	buy or sell
orderType	String	Yes	Order type for execution
size	String	Yes	Size in contracts
triggerPrice	String	Yes	Price that triggers the order
orderPrice	String	Conditional	Execution price (required for limit)
reduceOnly	Boolean	No	Only reduces position

cancel_algo_order / get_pending_algo_orders / get_algo_order_history

Manage and review algo/trigger orders.

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Safety Rules

1. NEVER place an order without explicit user confirmation — always show a summary first
2. Double-check the side (buy/sell) and position side (long/short) — mistakes are costly
3. Verify sufficient balance before placing orders
4. Validate limit prices against current market to avoid obvious errors
5. Warn about high-leverage orders — clearly state the liquidation risk
6. For large orders, check order book depth to estimate slippage
7. Rate limit awareness: Trading APIs are limited to 30 requests per 10 seconds per user