getEarnYieldHistory

THE RISK

Low Risk

Why getEarnYieldHistory needs a policy

This tool retrieves historical yield/earnings data from the Bybit exchange. The verb 'Query' and 'get' prefix are standard Read operations that only fetch data without side effects. Even in a financial context, querying historical data poses minimal risk compared to tools that execute trades, move funds, or modify positions.

From the tool's definition Tool name 'getEarnYieldHistory' and description 'Query yield history' indicate data retrieval with no modification capability.

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

POLICY

How to control getEarnYieldHistory

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 getEarnYieldHistory:

policy.json

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

getEarnYieldHistory 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.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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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 getEarnYieldHistory

What does the getEarnYieldHistory tool do? +

Query yield history. Supports. 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 getEarnYieldHistory? +

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

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

Can I rate-limit getEarnYieldHistory? +

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

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

getEarnYieldHistory 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 →