Compares yield opportunities for specific assets across different protocols
AI agents call compareYieldTool to retrieve information from Agentek Eth without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only analysis tool that queries yield data to help inform investment decisions. It gathers information across DeFi protocols but does not execute trades, transfer assets, or trigger any irreversible actions. While it exists in a financial context (cryptocurrency yield), the tool itself performs no financial transactions or commitments.
From the tool's definition The tool 'compares yield opportunities for specific assets across different protocols' — it retrieves and analyzes yield data across protocols without modifying state, executing transactions, or moving funds.
Documented attack patterns abuse exactly the kind of access compareYieldTool gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Agentek Eth, and nothing reaches the server without passing your rules. This is the rule we recommend for compareYieldTool:
{
"version": "1",
"default": "deny",
"tools": {
"compareYieldTool": {}
}
}compareYieldTool is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Compares yield opportunities for specific assets across different protocols. It is categorised as a Read tool in the Agentek Eth MCP Server, which means it retrieves data without modifying state.
Register the Agentek Eth MCP server in PolicyLayer and add a rule for compareYieldTool: 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 Agentek Eth. Nothing to install.
compareYieldTool 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 compareYieldTool 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 compareYieldTool. 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.
compareYieldTool is provided by the Agentek Eth MCP server (nanidao/agentek). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Agentek Eth, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
165 Agentek Eth tools catalogued and risk-classified — across an index of 43,000+ MCP servers.