This record as markdown: /tools/bybit-exchange-trading-mcp/listearncoupons.md
What listEarnCoupons does on Bybit MCP Server
AI agents call listEarnCoupons to retrieve information from Bybit MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why listEarnCoupons is rated Low
The tool queries and retrieves coupon data without modifying, creating, or deleting any information. It falls squarely into the Read category as it performs a data retrieval operation. Severity is low because retrieving coupon information poses minimal security risk even if misused by an AI agent—no financial transactions, account modifications, or destructive operations occur.
From the tool's definition Tool name 'listEarnCoupons' and description 'Query the user' indicate a retrieval operation that lists or fetches earn coupons associated with the user's account. This is a read-only query with no side effects.
Attacks that exploit this kind of access
The rule that runs listEarnCoupons safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Bybit MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For listEarnCoupons, this is the rule to start with:
listEarnCoupons is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Bybit MCP Server, apply this rule, and every listEarnCoupons call is checked against it from then on.
Questions about listEarnCoupons
Query the user. It is categorised as a Read tool in the Bybit MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for listEarnCoupons: 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.
listEarnCoupons is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the listEarnCoupons 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.
Set action: deny in the PolicyLayer policy for listEarnCoupons. 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.
listEarnCoupons 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.
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