Get current Ethereum gas prices (slow, standard, fast)
AI agents call gas_tracker to retrieve information from AgentPay x402 — Economic-intelligence layer for AI Agents 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 current gas price information from Ethereum. It performs no data modification, deletion, code execution, or financial transaction. The data retrieved is informational only and commonly available from public blockchain sources.
From the tool's definition Tool name 'gas_tracker' and description 'Get current Ethereum gas prices (slow, standard, fast)' indicate a read-only query that retrieves public blockchain data with no side effects.
Attacks that exploit this kind of access
Get current Ethereum gas prices (slow, standard, fast). It is categorised as a Read tool in the AgentPay x402 — Economic-intelligence layer for AI Agents MCP Server, which means it retrieves data without modifying state.
Register the AgentPay x402 — Economic-intelligence layer for AI Agents MCP server in PolicyLayer and add a rule for gas_tracker: 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 AgentPay x402 — Economic-intelligence layer for AI Agents. Nothing to install.
gas_tracker 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 gas_tracker 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 gas_tracker. 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.
gas_tracker is provided by the AgentPay x402 — Economic-intelligence layer for AI Agents MCP server (romudille-bit/agentpay). 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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