Get current fee data including EIP-1559 gas prices
AI agents call get_fee_data to retrieve information from Monad 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 current network fee data (gas prices) from the blockchain. It is a read-only operation that retrieves existing data without creating, modifying, deleting, or executing code. The information retrieved is informational and used to inform transaction construction decisions. No state changes or external operations are triggered.
From the tool's definition Tool name 'get_fee_data' and description 'Get current fee data including EIP-1559 gas prices' indicate retrieval of blockchain state information with no modification or side effects.
Attacks that exploit this kind of access
Get current fee data including EIP-1559 gas prices. It is categorised as a Read tool in the Monad MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Monad MCP Server MCP server in PolicyLayer and add a rule for get_fee_data: 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 Monad MCP Server. Nothing to install.
get_fee_data 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_fee_data 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_fee_data. 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_fee_data is provided by the Monad MCP Server MCP server (tairon-ai/monad-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 →