getFearAndGreedIndex
Retrieves the current Fear and Greed Index value from Alternative.me API.
This record as markdown: /tools/nanidao-agentek/getfearandgreedindex.md
What getFearAndGreedIndex does on Agentek Eth
AI agents call getFearAndGreedIndex to retrieve information from Agentek Eth without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why getFearAndGreedIndex is rated Low
This tool queries an external API to fetch a public financial sentiment metric. It performs no writes, deletions, code execution, or financial transactions. The retrieval is read-only and informational, consistent with monitoring and research purposes on a cryptocurrency analysis server. The blast radius of misuse is minimal—an AI agent cannot cause harm by repeatedly calling this tool or using stale data.
From the tool's definition Tool name 'getFearAndGreedIndex' and description 'Retrieves the current Fear and Greed Index value' indicate a data retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs getFearAndGreedIndex safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Agentek Eth, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getFearAndGreedIndex, this is the rule to start with:
getFearAndGreedIndex is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Agentek Eth, apply this rule, and every getFearAndGreedIndex call is checked against it from then on.
Questions about getFearAndGreedIndex
Retrieves the current Fear and Greed Index value from Alternative.me API. 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 getFearAndGreedIndex: 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.
getFearAndGreedIndex 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 getFearAndGreedIndex 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 getFearAndGreedIndex. 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.
getFearAndGreedIndex 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.
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