Get token balances for your wallet on Katana network (uses address from private key in environment)
AI agents call getTokenBalances to retrieve information from Katana MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries wallet token balances without creating, modifying, executing, or deleting anything. It has no side effects and presents minimal risk even if called repeatedly or with unintended parameters. The low severity reflects that balance queries cannot cause financial loss, irreversible changes, or unintended operations—they only return information about the current state of the wallet.
From the tool's definition Tool name 'getTokenBalances' and description 'Get token balances for your wallet' indicate a retrieval operation with no modification or execution of transactions.
Attacks that exploit this kind of access
Get token balances for your wallet on Katana network (uses address from private key in environment). It is categorised as a Read tool in the Katana MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Katana MCP Server MCP server in PolicyLayer and add a rule for getTokenBalances: 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 Katana MCP Server. Nothing to install.
getTokenBalances 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 getTokenBalances 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 getTokenBalances. 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.
getTokenBalances is provided by the Katana MCP Server MCP server (playainetwork/katana_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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