postCryptoLoanFixedBorrowOrderCancel

THE RISK

Medium Risk

Why postCryptoLoanFixedBorrowOrderCancel needs a policy

The tool cancels a pending borrow order, which modifies financial state but remains reversible (the order is simply removed from pending status, not deleted permanently, and a new borrow can be initiated). However, it operates on financial instruments within a cryptocurrency exchange context.

From the tool's definition Tool name contains 'Cancel' and description states 'Cancel a pending borrow order' — this modifies the state of an existing financial order by removing/canceling it, which is a reversible write operation on Bybit's lending system.

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

POLICY

How to control postCryptoLoanFixedBorrowOrderCancel

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 postCryptoLoanFixedBorrowOrderCancel:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "postCryptoLoanFixedBorrowOrderCancel": {
      "limits": [
        {
          "counter": "postcryptoloanfixedborrowordercancel_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

postCryptoLoanFixedBorrowOrderCancel stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. 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.

LIMIT THIS TOOL →

Free to start. No card required.

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

All 326 Bybit MCP Server tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about postCryptoLoanFixedBorrowOrderCancel

What does the postCryptoLoanFixedBorrowOrderCancel tool do? +

Cancel a pending borrow order.\n\nRate limit: 1 request per UID. It is categorised as a Write tool in the Bybit MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on postCryptoLoanFixedBorrowOrderCancel? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for postCryptoLoanFixedBorrowOrderCancel: 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 postCryptoLoanFixedBorrowOrderCancel? +

postCryptoLoanFixedBorrowOrderCancel is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit postCryptoLoanFixedBorrowOrderCancel? +

Yes. Add a rate_limit block to the postCryptoLoanFixedBorrowOrderCancel 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 postCryptoLoanFixedBorrowOrderCancel completely? +

Set action: deny in the PolicyLayer policy for postCryptoLoanFixedBorrowOrderCancel. 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 postCryptoLoanFixedBorrowOrderCancel? +

postCryptoLoanFixedBorrowOrderCancel 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 →