The MACD Slope is the rate of change of the MACD line, helping traders identify the acceleration or deceleration of momentum in a security
AI agents call GetTimeSeriesMacdSlope 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.
GetTimeSeriesMacdSlope is a data retrieval function that computes and returns a technical indicator (MACD Slope) for analysis purposes. It has no side effects on financial systems, does not execute trades or transactions, does not modify data, and does not trigger external operations.
From the tool's definition Tool retrieves MACD Slope technical analysis data, a calculated financial metric derived from historical price data.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesMacdSlope 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 GetTimeSeriesMacdSlope:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesMacdSlope": {}
}
}GetTimeSeriesMacdSlope is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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The MACD Slope is the rate of change of the MACD line, helping traders identify the acceleration or deceleration of momentum in a security. 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 GetTimeSeriesMacdSlope: 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.
GetTimeSeriesMacdSlope 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 GetTimeSeriesMacdSlope 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 GetTimeSeriesMacdSlope. 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.
GetTimeSeriesMacdSlope 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.