The Volume Weighted Average Price (VWAP) indicator offers an insightful measure of the average trading price weighted by volume, commonly used for trading analysis and execution evaluation.
AI agents call GetTimeSeriesVwap 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 historical market data (VWAP indicator values) for analysis purposes. It has no side effects, does not execute trades, does not move money, and does not modify any data. It is purely informational/analytical in nature, making it a Read operation with low severity even in financial market context since misuse would only result in wrong analysis, not actual financial harm.
From the tool's definition Tool retrieves VWAP (Volume Weighted Average Price) time series data - a financial metric calculated from historical trading data.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesVwap 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 GetTimeSeriesVwap:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesVwap": {}
}
}GetTimeSeriesVwap is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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The Volume Weighted Average Price (VWAP) indicator offers an insightful measure of the average trading price weighted by volume, commonly used for trading analysis and execution evaluation. 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 GetTimeSeriesVwap: 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.
GetTimeSeriesVwap 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 GetTimeSeriesVwap 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 GetTimeSeriesVwap. 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.
GetTimeSeriesVwap 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.