get_correlation_matrix
BTC correlation with traditional finance: 30-day Pearson correlation with S&P 500 and Gold, plus current TradFi prices. Shows whether BTC is trading as a risk asset, safe haven, or independently. Critical for understanding macro spillover risk.
This record as markdown: /tools/0xhashy-fathom-fyi/get-correlation-matrix.md
What get_correlation_matrix does on Fathom Fyi
AI agents call get_correlation_matrix to retrieve information from Fathom Fyi without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_correlation_matrix is rated Low
This is purely a data retrieval tool that computes and returns statistical correlations (Pearson correlation with S&P 500 and Gold) and displays current TradFi prices. It provides read-only financial intelligence for decision support. While used in a financial context, the tool itself does not move money, execute trades, modify positions, or make irreversible changes.
From the tool's definition Tool retrieves correlation data ('get_' prefix, 'Shows whether BTC is trading') and current market prices. No side effects, no modifications, no execution, no deletions, no financial transactions.
Attacks that exploit this kind of access
The rule that runs get_correlation_matrix safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Fathom Fyi, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_correlation_matrix, this is the rule to start with:
get_correlation_matrix 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 Fathom Fyi, apply this rule, and every get_correlation_matrix call is checked against it from then on.
Questions about get_correlation_matrix
BTC correlation with traditional finance: 30-day Pearson correlation with S&P 500 and Gold, plus current TradFi prices. Shows whether BTC is trading as a risk asset, safe haven, or independently. Critical for understanding macro spillover risk. It is categorised as a Read tool in the Fathom Fyi MCP Server, which means it retrieves data without modifying state.
Register the Fathom Fyi MCP server in PolicyLayer and add a rule for get_correlation_matrix: 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 Fathom Fyi. Nothing to install.
get_correlation_matrix 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_correlation_matrix 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_correlation_matrix. 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_correlation_matrix is provided by the Fathom Fyi MCP server (0xhashy/fathom-fyi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Fathom Fyi, and thousands of servers like it.
This server
Across the catalogue