Get current and historical funding rates for perpetual contracts.
AI agents call get_funding_rates to retrieve information from Hyperliquid without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves market data (funding rates) without side effects. While the hyperliquid-mcp server enables trading operations overall, this specific tool merely queries existing funding rate information to inform trading decisions. It does not execute trades, move funds, or modify state. Classification as Read reflects its data-retrieval-only nature and minimal risk profile.
From the tool's definition Tool name 'get_funding_rates' and description 'Get current and historical funding rates for perpetual contracts' indicate data retrieval only.
Attacks that exploit this kind of access
Get current and historical funding rates for perpetual contracts. It is categorised as a Read tool in the Hyperliquid MCP Server, which means it retrieves data without modifying state.
Register the Hyperliquid MCP server in PolicyLayer and add a rule for get_funding_rates: 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. Nothing to install.
get_funding_rates 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_funding_rates 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_funding_rates. 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_funding_rates is provided by the Hyperliquid MCP server (midodimori/hyperliquid-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.
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