BinanceDeliveryMarkPriceKlines

THE RISK

Low Risk

Why BinanceDeliveryMarkPriceKlines needs a policy

This tool retrieves historical candlestick/kline data for mark prices. It is a read-only data fetch operation with no side effects, writes, or financial transactions. It simply queries price data used for informational or analytical purposes.

From the tool's definition Get mark price kline/candlestick data for a COIN-M Futures symbol

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

POLICY

How to control BinanceDeliveryMarkPriceKlines

PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for BinanceDeliveryMarkPriceKlines:

policy.json

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

BinanceDeliveryMarkPriceKlines 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 Sperax Ecosystem Crypto & DeFI 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

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FAQ

Questions about BinanceDeliveryMarkPriceKlines

What does the BinanceDeliveryMarkPriceKlines tool do? +

Get mark price kline/candlestick data for a COIN-M Futures symbol. Mark price is used for liquidation calculations. It is categorised as a Read tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on BinanceDeliveryMarkPriceKlines? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for BinanceDeliveryMarkPriceKlines: 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 Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.

What risk level is BinanceDeliveryMarkPriceKlines? +

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

Can I rate-limit BinanceDeliveryMarkPriceKlines? +

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

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

BinanceDeliveryMarkPriceKlines is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sperax Ecosystem Crypto & DeFI MCP Server tool call.

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

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