Get list of subaccounts and their states.
AI agents call get_subaccounts to retrieve information from Hyperliquid MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about subaccounts and their current states. It performs no mutations, does not execute code or commands, and has no irreversible effects. It is a straightforward read operation analogous to a database query or API fetch.
From the tool's definition Tool name is 'get_subaccounts' and description states 'Get list of subaccounts and their states' — uses 'Get' verb and retrieves data without modification or side effects.
Attacks that exploit this kind of access
Get list of subaccounts and their states. It is categorised as a Read tool in the Hyperliquid MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Hyperliquid MCP Server MCP server in PolicyLayer and add a rule for get_subaccounts: 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 Hyperliquid MCP Server. Nothing to install.
get_subaccounts 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_subaccounts 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_subaccounts. 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_subaccounts is provided by the Hyperliquid MCP Server MCP server (jhonatanpinheiro/hyperliquid-mcp-server). 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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