The Correlation (CORREL) indicator measures the statistical relationship between two securities, helping traders identify potential diversification opportunities or pairs trading candidates.
AI agents call GetTimeSeriesCorrel to retrieve information from Twelve Data MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes historical time series data to compute correlation statistics between two securities. It performs read-only operations with no side effects, no data modification, and no financial transactions. The output is analytical (correlation metrics) used for decision-making, not action-taking. This is purely informational access to market data and metrics.
From the tool's definition Tool name 'GetTimeSeriesCorrel' and description 'measures the statistical relationship between two securities' indicates data retrieval and calculation of correlation metrics.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesCorrel gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Twelve Data MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for GetTimeSeriesCorrel:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesCorrel": {}
}
}GetTimeSeriesCorrel is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
The Correlation (CORREL) indicator measures the statistical relationship between two securities, helping traders identify potential diversification opportunities or pairs trading candidates. It is categorised as a Read tool in the Twelve Data MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Twelve Data MCP Server MCP server in PolicyLayer and add a rule for GetTimeSeriesCorrel: 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 Twelve Data MCP Server. Nothing to install.
GetTimeSeriesCorrel 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 GetTimeSeriesCorrel 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 GetTimeSeriesCorrel. 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.
GetTimeSeriesCorrel is provided by the Twelve Data MCP Server MCP server (twelvedata/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 186 Twelve Data MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
186 Twelve Data MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.