eth_gasPrice

Retrieves the current gas price in wei

SERVEREthereum RPC MCP Server SOURCE0xkoda/eth-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/0xkoda-eth-mcp/eth-gasprice.md

WHAT IT DOES

What eth_gasPrice does on Ethereum RPC MCP Server

AI agents call eth_gasPrice to retrieve information from Ethereum RPC MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why eth_gasPrice is rated Low

This tool performs a simple data retrieval operation (getting the current network gas price) without creating, modifying, deleting, or executing anything. It has no financial impact as it merely reads public blockchain state. The blast radius of misuse is minimal - an attacker could only waste RPC quota or monitor gas price trends, with no ability to affect user funds or state.

From the tool's definition eth_gasPrice retrieves the current gas price in wei - a read-only query operation with no state modification or side effects. Sibling tools like eth_getBalance and eth_getCode are also read operations on the Ethereum blockchain.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs eth_gasPrice safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ethereum RPC MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For eth_gasPrice, this is the rule to start with:

eth_gasPrice Allowed

eth_gasPrice is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "eth_gasPrice": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ethereum RPC MCP Server, apply this rule, and every eth_gasPrice call is checked against it from then on.

FAQ

Questions about eth_gasPrice

What does the eth_gasPrice tool do? +

Retrieves the current gas price in wei. It is categorised as a Read tool in the Ethereum RPC MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on eth_gasPrice? +

Register the Ethereum RPC MCP Server MCP server in PolicyLayer and add a rule for eth_gasPrice: 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 Ethereum RPC MCP Server. Nothing to install.

What risk level is eth_gasPrice? +

eth_gasPrice is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit eth_gasPrice? +

Yes. Add a rate_limit block to the eth_gasPrice 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.

How do I block eth_gasPrice completely? +

Set action: deny in the PolicyLayer policy for eth_gasPrice. 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.

What MCP server provides eth_gasPrice? +

eth_gasPrice is provided by the Ethereum RPC MCP Server MCP server (0xkoda/eth-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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