getAddressCoinBalanceHistoryByDay
Get the daily native coin balance snapshots for an address (one data point per day).
This record as markdown: /tools/nanidao-agentek/getaddresscoinbalancehistorybyday.md
What getAddressCoinBalanceHistoryByDay does on Agentek Eth
AI agents call getAddressCoinBalanceHistoryByDay 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.
Why getAddressCoinBalanceHistoryByDay is rated Low
This tool queries and retrieves historical balance information for a cryptocurrency address. It is a read-only operation that returns data snapshots with no side effects, no code execution, and no state changes. The data retrieved could be considered sensitive (financial history), but the read-only nature and lack of actionable side effects place it firmly in the Read category at low severity.
From the tool's definition Tool name contains 'get' and description states 'Get the daily native coin balance snapshots' — retrieves historical balance data without modifying or executing actions.
Attacks that exploit this kind of access
The rule that runs getAddressCoinBalanceHistoryByDay 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 getAddressCoinBalanceHistoryByDay, this is the rule to start with:
getAddressCoinBalanceHistoryByDay is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Agentek Eth, apply this rule, and every getAddressCoinBalanceHistoryByDay call is checked against it from then on.
Questions about getAddressCoinBalanceHistoryByDay
Get the daily native coin balance snapshots for an address (one data point per day). It is categorised as a Read tool in the Agentek Eth MCP Server, which means it retrieves data without modifying state.
Register the Agentek Eth MCP server in PolicyLayer and add a rule for getAddressCoinBalanceHistoryByDay: 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.
getAddressCoinBalanceHistoryByDay 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 getAddressCoinBalanceHistoryByDay 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 getAddressCoinBalanceHistoryByDay. 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.
getAddressCoinBalanceHistoryByDay 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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