The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements, helping traders identify potential overbought or oversold conditions and trend reversals.
AI agents call GetTimeSeriesRsi 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 retrieves pre-calculated or computed financial market data (RSI technical indicator values) without modifying any data, executing trades, moving money, or triggering external operations. It is a read-only query operation that returns analytical data to support decision-making.
From the tool's definition Tool name 'GetTimeSeriesRsi' and description state it measures and helps identify market conditions—purely data retrieval without modification, execution, or financial transactions. Returns calculated technical indicator values from historical time series.
Documented attack patterns abuse exactly the kind of access GetTimeSeriesRsi 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 GetTimeSeriesRsi:
{
"version": "1",
"default": "deny",
"tools": {
"GetTimeSeriesRsi": {}
}
}GetTimeSeriesRsi 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 Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements, helping traders identify potential overbought or oversold conditions and trend reversals. 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 GetTimeSeriesRsi: 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.
GetTimeSeriesRsi 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 GetTimeSeriesRsi 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 GetTimeSeriesRsi. 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.
GetTimeSeriesRsi 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.