stats__ethdailyprice

THE RISK

Low Risk

Why stats__ethdailyprice needs a policy

This tool retrieves historical ETH price information from Etherscan's public API. It is purely a data read operation with no ability to modify, execute, or delete data. The blast radius of misuse is minimal—an AI agent could only retrieve price data, which is public information. There is no financial risk since no money moves and no financial obligations are created.

From the tool's definition The tool "returns" historical price data with no parameters that modify state; this is a query operation that retrieves existing blockchain statistics without side effects.

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

POLICY

How to control stats__ethdailyprice

PolicyLayer is an MCP gateway — it sits between your AI agents and Etherscan MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for stats__ethdailyprice:

policy.json

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

stats__ethdailyprice 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 Etherscan MCP — 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 stats__ethdailyprice

What does the stats__ethdailyprice tool do? +

Returns the historical price of 1 ETH. It is categorised as a Read tool in the Etherscan MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on stats__ethdailyprice? +

Register the Etherscan MCP server in PolicyLayer and add a rule for stats__ethdailyprice: 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 Etherscan MCP. Nothing to install.

What risk level is stats__ethdailyprice? +

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

Can I rate-limit stats__ethdailyprice? +

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

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

stats__ethdailyprice is provided by the Etherscan MCP server (xiaok/etherscan-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Etherscan MCP tool call.

Start from Etherscan MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →