subscribeRfqQuotes

THE RISK

Low Risk

Why subscribeRfqQuotes needs a policy

'Subscribe' to RFQ quotes is a read-oriented operation that sets up a real-time data stream for incoming quotes. It does not place orders, move funds, or modify state. The authentication requirement ('需要鉴权') is typical for private WebSocket channels to receive user-specific data. Severity is low as misuse only results in unwanted subscriptions/data consumption, not financial or destructive impact.

From the tool's definition 订阅 RFQ 报价 — 'subscribe' to RFQ quotes, which is a read/streaming operation that retrieves real-time quote data

Documented attack patterns abuse exactly the kind of access subscribeRfqQuotes gives an agent:

POLICY

How to control subscribeRfqQuotes

PolicyLayer is an MCP gateway — it sits between your AI agents and Bybit MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for subscribeRfqQuotes:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "subscribeRfqQuotes": {}
  }
}

subscribeRfqQuotes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Bybit MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

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Financial removeLiquidity Withdraw funds from a Liquidity Mining pool position.\n\n- Financial confirmQuote Confirm the quote and execute the conversion trade.\n\nImportant:\n- Must confirm within t Financial executePurchase Place a buy order to purchase on-chain tokens with payment tokens.\nReturns an Financial executeQuote Execute (accept) a quote to initiate the multi-leg trade.\nThis endpoint is asynchronous - Financial executeRedeem Place a sell order to redeem on-chain tokens for payment tokens.\nReturns an Financial quickRepayment Execute quick repayment for specified coin Financial accountBorrow Manual borrow for Unified account.\n\nRules:\n- Borrowing via OpenAPI endpoint supports va Financial accountRepay Manually repay the liabilities of Unified account.\n\nRules:\n- If neither

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about subscribeRfqQuotes

What does the subscribeRfqQuotes tool do? +

订阅 RFQ 报价（需要鉴权）. It is categorised as a Read tool in the Bybit MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on subscribeRfqQuotes? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for subscribeRfqQuotes: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Bybit MCP Server. Nothing to install.

What risk level is subscribeRfqQuotes? +

subscribeRfqQuotes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit subscribeRfqQuotes? +

Yes. Add a rate_limit block to the subscribeRfqQuotes rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block subscribeRfqQuotes completely? +

Set action: deny in the PolicyLayer policy for subscribeRfqQuotes. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides subscribeRfqQuotes? +

subscribeRfqQuotes is provided by the Bybit MCP Server MCP server (bybit-exchange/trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bybit MCP Server tool call.

Start from Bybit MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →