getBalance

Get the native token (ETH) balance for an address. If chainId is omitted, returns balances across all supported chains.

SERVERAgentek Eth SOURCEnanidao/agentek

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nanidao-agentek/getbalance.md

WHAT IT DOES

What getBalance does on Agentek Eth

AI agents call getBalance to retrieve information from Agentek Eth without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why getBalance is rated Low

This tool only retrieves balance information for a blockchain address without any ability to transfer, spend, or modify funds. It is a read-only query operation with no side effects. While the server context involves cryptocurrency, this specific tool does not move money, execute transactions, or perform any write/execute/destructive operations.

From the tool's definition Tool description: 'Get the native token (ETH) balance for an address.' The verb 'Get' and the function of retrieving/querying balance data with no modification capability.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs getBalance safely

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

getBalance Allowed

getBalance 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": {
    "getBalance": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Agentek Eth, apply this rule, and every getBalance call is checked against it from then on.

FAQ

Questions about getBalance

What does the getBalance tool do? +

Get the native token (ETH) balance for an address. If chainId is omitted, returns balances across all supported chains. It is categorised as a Read tool in the Agentek Eth MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on getBalance? +

Register the Agentek Eth MCP server in PolicyLayer and add a rule for getBalance: 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 Agentek Eth. Nothing to install.

What risk level is getBalance? +

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

Can I rate-limit getBalance? +

Yes. Add a rate_limit block to the getBalance 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 getBalance completely? +

Set action: deny in the PolicyLayer policy for getBalance. 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 getBalance? +

getBalance is provided by the Agentek Eth MCP server (nanidao/agentek). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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