The Moving Average Convergence Divergence (MACD) is a momentum indicator that measures the difference between two moving averages, with a signal line used to identify potential trend reversals and trading opportunities.
AI agents call GetTimeSeriesMacd 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 technical analysis calculations on historical prices to produce indicator values. It is read-only—it retrieves and computes data without creating, modifying, or deleting records, executing arbitrary commands, or moving money. While the output may inform trading decisions, the tool itself only reads and analyzes data.
From the tool's definition GetTimeSeriesMacd retrieves and calculates Moving Average Convergence Divergence (MACD) values from historical time series data.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesMacd 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 GetTimeSeriesMacd:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesMacd": {}
}
}GetTimeSeriesMacd is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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The Moving Average Convergence Divergence (MACD) is a momentum indicator that measures the difference between two moving averages, with a signal line used to identify potential trend reversals and trading opportunities. 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 GetTimeSeriesMacd: 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.
GetTimeSeriesMacd 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 GetTimeSeriesMacd 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 GetTimeSeriesMacd. 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.
GetTimeSeriesMacd 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.