AI agents call aevo_get_funding_rate to retrieve information from Aevo-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns market information (funding rate for a perpetual instrument) without creating, modifying, deleting, or executing any operations. It is a read-only retrieval of publicly available market data. Even in the context of a trading platform, retrieving funding rates poses minimal risk — the data cannot be misused to cause direct financial harm, and it does not execute trades or move funds.
From the tool's definition Tool name contains 'get' and description states 'Return the current funding rate' — retrieves data with no side effects. Funding rate is market data, not account-specific or actionable financial data.
Attacks that exploit this kind of access
Return the current funding rate for a perpetual instrument. It is categorised as a Read tool in the Aevo-MCP MCP Server, which means it retrieves data without modifying state.
Register the Aevo- MCP server in PolicyLayer and add a rule for aevo_get_funding_rate: 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 Aevo-MCP. Nothing to install.
aevo_get_funding_rate 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 aevo_get_funding_rate 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 aevo_get_funding_rate. 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.
aevo_get_funding_rate is provided by the Aevo- MCP server (ribbon-finance/aevo-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.
Teams ship this data inside their own products. See what a licence covers →