Compare funding rates between Aster and Hyperliquid for the same symbols. Identifies arbitrage opportunities when funding diverges significantly (e.g., long on exchange paying you, short on exchange charging you). Returns spread, direction, and APR potential.
AI agents call get_funding_spread to retrieve information from Asterdex without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs data retrieval and analysis only. It queries funding rates from two exchanges (Aster and Hyperliquid) and calculates comparative metrics to inform trading decisions. Despite operating in a financial context (perpetual futures), the tool itself executes no financial transactions, does not commit obligations, and cannot move funds or execute trades.
From the tool's definition Tool 'get_funding_spread' retrieves and compares funding rate data between exchanges. Description states it 'identifies arbitrage opportunities' and 'returns spread, direction, and APR potential'—all read operations with no side effects.
Attacks that exploit this kind of access
Compare funding rates between Aster and Hyperliquid for the same symbols. Identifies arbitrage opportunities when funding diverges significantly (e.g., long on exchange paying you, short on exchange charging you). Returns spread, direction, and APR potential. It is categorised as a Read tool in the Asterdex MCP Server, which means it retrieves data without modifying state.
Register the Asterdex MCP server in PolicyLayer and add a rule for get_funding_spread: 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 Asterdex. Nothing to install.
get_funding_spread 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_spread 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_spread. 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_spread is provided by the Asterdex MCP server (tyranosurasmax/asterdex-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.
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