registerBinanceGetBnsolRateHistory

THE RISK

Low Risk

Why registerBinanceGetBnsolRateHistory needs a policy

This tool retrieves historical staking rate data (APR and exchange rates) with no side effects. It is a pure read/query operation against Binance's BNSOL rate history endpoint.

From the tool's definition Get BNSOL Rate History API allows users to retrieve the historical data of the BNSOL staking rate, including APR and exchange rates

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

POLICY

How to control registerBinanceGetBnsolRateHistory

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 registerBinanceGetBnsolRateHistory:

policy.json

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

registerBinanceGetBnsolRateHistory 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.
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Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about registerBinanceGetBnsolRateHistory

What does the registerBinanceGetBnsolRateHistory tool do? +

Get BNSOL Rate History API allows users to retrieve the historical data of the BNSOL staking rate, including APR and exchange rates for SOL to BNSOL. 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 registerBinanceGetBnsolRateHistory? +

Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for registerBinanceGetBnsolRateHistory: 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 registerBinanceGetBnsolRateHistory? +

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

Can I rate-limit registerBinanceGetBnsolRateHistory? +

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

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

registerBinanceGetBnsolRateHistory 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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