Get detailed ERC20 token balances for a wallet address including native token balance
AI agents call getTokenBalances to retrieve information from Boosty MCP DeFi Platform without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves wallet balance information without creating, modifying, deleting, or executing any operations. It is a straightforward read operation similar to a GET endpoint or SELECT query. While the server environment involves financial operations (DeFi platform), this specific tool merely queries blockchain state to display balances.
From the tool's definition Tool name 'getTokenBalances' and description 'Get detailed ERC20 token balances for a wallet address including native token balance' indicate a query operation that retrieves data without modifying state.
Documented attack patterns abuse exactly the kind of access getTokenBalances gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Boosty MCP DeFi Platform, and nothing reaches the server without passing your rules. This is the rule we recommend for getTokenBalances:
{
"version": "1",
"default": "deny",
"tools": {
"getTokenBalances": {}
}
}getTokenBalances is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get detailed ERC20 token balances for a wallet address including native token balance. It is categorised as a Read tool in the Boosty MCP DeFi Platform MCP Server, which means it retrieves data without modifying state.
Register the Boosty MCP DeFi Platform 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 Boosty MCP DeFi Platform. 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 Boosty MCP DeFi Platform MCP server (nirholas/boosty). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Boosty MCP DeFi Platform, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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80 Boosty MCP DeFi Platform tools catalogued and risk-classified — across an index of 43,000+ MCP servers.