List all available built-in technical indicators (TA-Lib library + custom). ALWAYS call this BEFORE writing custom indicator code to check whether the desired indicator already exists. TA-Lib provides 150+ indicators across categories like Momentum, Overlap Studies, Volatility, Volume, Pattern Re...
Part of the Technical Analysis server.
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AI agents call indicators_list to retrieve information from Technical Analysis without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though indicators_list only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"indicators_list": {}
}
}See the full Technical Analysis policy for all 11 tools.
These attack patterns abuse exactly the kind of access indicators_list gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List all available built-in technical indicators (TA-Lib library + custom). ALWAYS call this BEFORE writing custom indicator code to check whether the desired indicator already exists. TA-Lib provides 150+ indicators across categories like Momentum, Overlap Studies, Volatility, Volume, Pattern Recognition, etc. Args: search: Optional filter — only show indicators whose name contains this substring (case-insensitive). Example: 'VWAP', 'momentum'.. It is categorised as a Read tool in the Technical Analysis MCP Server, which means it retrieves data without modifying state.
Register the Technical Analysis MCP server in PolicyLayer and add a rule for indicators_list: 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 Technical Analysis. Nothing to install.
indicators_list 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 indicators_list 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 indicators_list. 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.
indicators_list is provided by the Technical Analysis MCP server (ta-mcp/technical-analysis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Technical Analysis tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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