This API method returns earning data as a calendar for a given date range. By default today’s earning is returned. To call custom period, use start_date and end_date parameters.
AI agents call GetEarningsCalendar 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 financial market data (earnings calendar) with no side effects, no code execution, no data modification, and no financial transactions. It is a straightforward data query operation analogous to 'get' or 'fetch'. The severity is low because misuse would only expose publicly available market information, not cause system compromise or financial loss.
From the tool's definition Tool returns earnings calendar data for a date range; described as retrieval of historical/scheduled earning events without modification capabilities. Parameters are start_date and end_date for filtering, consistent with query operations.
Documented attack patterns abuse exactly the kind of access GetEarningsCalendar 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 GetEarningsCalendar:
{
"version": "1",
"default": "deny",
"tools": {
"GetEarningsCalendar": {}
}
}GetEarningsCalendar is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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This API method returns earning data as a calendar for a given date range. By default today’s earning is returned. To call custom period, use start_date and end_date parameters. 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 GetEarningsCalendar: 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.
GetEarningsCalendar 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 GetEarningsCalendar 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 GetEarningsCalendar. 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.
GetEarningsCalendar 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.
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186 Twelve Data MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.