get_fear_greed
Get Crypto Fear & Greed Index (0-100) with 7-day history and z-score. FREE.
This record as markdown: /tools/de-carbon-cashmere-api-crypto-intelligence/get-fear-greed.md
What get_fear_greed does on Crypto Intelligence
AI agents call get_fear_greed to retrieve information from Crypto Intelligence without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
days | integer | — | History days (1-30) |
Parameters from the server's own tool schema.
Why get_fear_greed is rated Low
This tool retrieves and queries a public Fear & Greed Index metric along with historical context. It performs no data modification, execution of code, deletion, or financial transactions. Even in the context of a crypto trading server with micropayments and node access, this specific tool is purely informational—an AI agent cannot cause harm by requesting market sentiment indices.
From the tool's definition Tool name 'get_fear_greed' and description 'Get Crypto Fear & Greed Index (0-100) with 7-day history and z-score' indicate retrieval of public market sentiment data with no side effects. The 'Get' verb and 'FREE' designation confirm read-only data access.
Attacks that exploit this kind of access
The rule that runs get_fear_greed safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crypto Intelligence, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_fear_greed, this is the rule to start with:
get_fear_greed 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 Crypto Intelligence, apply this rule, and every get_fear_greed call is checked against it from then on.
Questions about get_fear_greed
Get Crypto Fear & Greed Index (0-100) with 7-day history and z-score. FREE. It is categorised as a Read tool in the Crypto Intelligence MCP Server, which means it retrieves data without modifying state.
get_fear_greed accepts 1 parameter: days. The full parameter table on this page comes from the server's own tool schema.
Register the Crypto Intelligence MCP server in PolicyLayer and add a rule for get_fear_greed: 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 Crypto Intelligence. Nothing to install.
get_fear_greed 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 get_fear_greed 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 get_fear_greed. 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.
get_fear_greed is provided by the Crypto Intelligence MCP server (https://api.carbon-cashmere.de/mcp/sse). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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