This API call returns an array of commodity pairs available at Twelve Data API. This list is updated daily.
AI agents call GetCommodities 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.
GetCommodities retrieves metadata about available commodity instruments from the Twelve Data API. This is a pure read operation that queries and lists available data without creating, modifying, deleting, or executing any external operations. The blast radius of misuse is minimal—an agent could only retrieve information already publicly available in the API's commodity catalog.
From the tool's definition Tool description states it 'returns an array of commodity pairs available' - a retrieval operation with no modification or side effects. The verb 'returns' indicates querying/listing data.
Documented attack patterns abuse exactly the kind of access GetCommodities 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 GetCommodities:
{
"version": "1",
"default": "deny",
"tools": {
"GetCommodities": {}
}
}GetCommodities 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 call returns an array of commodity pairs available at Twelve Data API. This list is updated daily. 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 GetCommodities: 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.
GetCommodities 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 GetCommodities 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 GetCommodities. 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.
GetCommodities 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.