The Detrended Price Oscillator (DPO) is a momentum oscillator that removes the underlying trend from price data, helping traders identify potential cyclical patterns and overbought or oversold conditions.
AI agents call GetTimeSeriesDpo 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 queries financial market data and performs analytical calculations on it to return indicator values. It does not create, modify, delete, execute arbitrary code, or commit financial transactions. The 'Get' prefix and indicator calculation nature confirm this is a read-only retrieval operation.
From the tool's definition Tool retrieves and calculates the Detrended Price Oscillator (DPO), a technical analysis indicator derived from historical price data.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesDpo 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 GetTimeSeriesDpo:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesDpo": {}
}
}GetTimeSeriesDpo is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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The Detrended Price Oscillator (DPO) is a momentum oscillator that removes the underlying trend from price data, helping traders identify potential cyclical patterns and overbought or oversold conditions. 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 GetTimeSeriesDpo: 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.
GetTimeSeriesDpo 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 GetTimeSeriesDpo 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 GetTimeSeriesDpo. 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.
GetTimeSeriesDpo 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.