The Accumulation/Distribution (AD) technical indicator is a volume-based tool used in chart analysis to identify potential buying or selling pressure in a security. It measures the cumulative flow of money into and out of a financial instrument by comparing its closing price to its price range, w...
AI agents call GetTimeSeriesAd 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 is a data retrieval tool that calculates and returns a technical analysis metric based on historical OHLCV (open-high-low-close-volume) data. It has no side effects, does not modify any state, and poses minimal risk if called by an AI agent. The worst outcome would be receiving irrelevant financial analysis, not financial loss or system compromise.
From the tool's definition Tool retrieves technical indicator data (Accumulation/Distribution) computed from historical market data. Description states it 'measures' and 'identifies' patterns in existing data without modifying, creating, executing code, deleting, or moving money.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesAd 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 GetTimeSeriesAd:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesAd": {}
}
}GetTimeSeriesAd 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 Accumulation/Distribution (AD) technical indicator is a volume-based tool used in chart analysis to identify potential buying or selling pressure in a security. It measures the cumulative flow of money into and out of a financial instrument by comparing its closing price to its price range, while considering trading volume. The AD line. 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 GetTimeSeriesAd: 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.
GetTimeSeriesAd 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 GetTimeSeriesAd 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 GetTimeSeriesAd. 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.
GetTimeSeriesAd 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.