This endpoint allows you to request multiple instruments, intervals, and endpoints simultaneously. ### Request body Only JSON POST requests are supported. The request content structure consists of key-value items. The key is a unique request ID. The value is requested url. ### Response The respon...
AI agents call advanced 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 read-only data retrieval tool that queries financial market information. While it accesses financial data and could be misused to gather market intelligence, it does not move money, execute code, modify data, or cause destructive changes.
From the tool's definition Tool description states it 'allows you to request multiple instruments, intervals, and endpoints simultaneously' and returns 'returned data' in response.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access advanced 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 advanced:
{
"version": "1",
"default": "deny",
"tools": {
"advanced": {}
}
}advanced is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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This endpoint allows you to request multiple instruments, intervals, and endpoints simultaneously. ### Request body Only JSON POST requests are supported. The request content structure consists of key-value items. The key is a unique request ID. The value is requested url. ### Response The response contains key-value data. The key is a unique request ID. The value is returned data. ### API credits <ul> <li>The number of concurrent requests is limited by your subscription plan.</li> <li>Credits are consumed per requested endpoint, with the total usage equal to the sum of individual requests in the batch.</li> <li>If the requested data exceeds your available credits, only partial data will be returned asynchronously until your quota is exhausted.</li> <li>If one or more requests in the batch contain errors (e.g., invalid symbols or unsupported intervals), it will not affect the successful processing of other requests. Errors are reported individually within the response, allowing you to identify and correct specific issues without impacting the entire batch.</li> </ul>. 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 advanced: 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.
advanced 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 advanced 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 advanced. 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.
advanced 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.