Get token balance for an address
AI agents call get_balance to retrieve information from Telos Network MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query to retrieve the balance of tokens at a specified address on the Telos blockchain. It has no capacity to modify state, execute transactions, or cause irreversible changes. The blast radius of misuse is minimal—an attacker could only gather balance information they could discover through other means (public blockchain data is inherently observable).
From the tool's definition Tool name 'get_balance' and description 'Get token balance for an address' indicate a query operation that retrieves data without modification or side effects.
Attacks that exploit this kind of access
Get token balance for an address. It is categorised as a Read tool in the Telos Network MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Telos Network MCP Server MCP server in PolicyLayer and add a rule for get_balance: 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 Telos Network MCP Server. Nothing to install.
get_balance 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 get_balance 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 get_balance. 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.
get_balance is provided by the Telos Network MCP Server MCP server (tairon-ai/telos-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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