Get detailed margin information for a subaccount including maintenance margin, initial margin, and margin ratio. Requires authentication.
AI agents call get_margin to retrieve information from Derive MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves existing margin account data (maintenance margin, initial margin, margin ratio) for informational purposes. It performs no state changes, does not execute trades or orders, does not transfer funds, and does not delete data. While the broader server context involves financial trading, this specific tool only queries account margin metrics.
From the tool's definition Tool description states 'Get detailed margin information' - a retrieval operation with no side effects. The verb 'Get' and the lack of any modification, execution, or financial transaction language confirms this is a read-only query.
Attacks that exploit this kind of access
Get detailed margin information for a subaccount including maintenance margin, initial margin, and margin ratio. Requires authentication. It is categorised as a Read tool in the Derive MCP MCP Server, which means it retrieves data without modifying state.
Register the Derive MCP server in PolicyLayer and add a rule for get_margin: 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 Derive MCP. Nothing to install.
get_margin 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 get_margin 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 get_margin. 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.
get_margin is provided by the Derive MCP server (solenyaresearch0000/derive-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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