The Triple Exponential Moving Average (TEMA) is a smoothing indicator that applies three exponential moving averages to price data, reducing lag and providing a more accurate representation of trends.
AI agents call GetTimeSeriesTema 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 performs calculations on historical financial market data to generate a technical analysis indicator. It retrieves and transforms data (Read operations) without creating, modifying, or deleting any records, executing arbitrary commands, or involving financial transactions.
From the tool's definition Tool retrieves and computes the Triple Exponential Moving Average (TEMA) indicator applied to historical price data.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesTema 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 GetTimeSeriesTema:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesTema": {}
}
}GetTimeSeriesTema is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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The Triple Exponential Moving Average (TEMA) is a smoothing indicator that applies three exponential moving averages to price data, reducing lag and providing a more accurate representation of trends. 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 GetTimeSeriesTema: 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.
GetTimeSeriesTema 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 GetTimeSeriesTema 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 GetTimeSeriesTema. 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.
GetTimeSeriesTema 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.
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186 Twelve Data MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.