Convert wei amount to KAIA (10^18 wei = 1 KAIA)
AI agents call format_ether to retrieve information from KaiaFun MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward utility function that reads and reformats numeric input without modifying blockchain state, creating/deleting data, or executing operations. It is a simple calculation aid with no blast radius if misused by an AI agent.
From the tool's definition Tool performs unit conversion ('Convert wei amount to KAIA') with no side effects—pure data transformation from one numeric representation to another.
Attacks that exploit this kind of access
Convert wei amount to KAIA (10^18 wei = 1 KAIA). It is categorised as a Read tool in the KaiaFun MCP MCP Server, which means it retrieves data without modifying state.
Register the KaiaFun MCP server in PolicyLayer and add a rule for format_ether: 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 KaiaFun MCP. Nothing to install.
format_ether 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 format_ether 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 format_ether. 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.
format_ether is provided by the KaiaFun MCP server (weero-finance/kaiafun-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.
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