AI agents use withdraw_balance to commit financial operations through Tron — usually the final step of a payment, billing, or trading workflow. A call moves real money.
| Parameter | Type | Required | Description |
|---|---|---|---|
network | string | — | Network name. Defaults to mainnet. |
Parameters from the server's own tool schema.
This tool moves cryptocurrency (voting rewards) and commits a financial obligation (reduces the reward pool, increases wallet balance). Even though it is not arbitrary fund movement, it irreversibly commits to a financial transaction on the blockchain. Financial category takes precedence over Write/Execute.
From the tool's definition Tool description explicitly states 'Withdraw accumulated voting rewards to the configured wallet's available balance' — this transfers cryptocurrency funds from a reward pool to a wallet, moving financial value.
Attacks that exploit this kind of access
Withdraw accumulated voting rewards to the configured wallet's available balance. It is categorised as a Financial tool in the Tron MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
withdraw_balance accepts 1 parameter: network. The full parameter table on this page comes from the server's own tool schema.
Register the Tron MCP server in PolicyLayer and add a rule for withdraw_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 Tron. Nothing to install.
withdraw_balance is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the withdraw_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 withdraw_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.
withdraw_balance is provided by the Tron MCP server (@bankofai/mcp-server-tron). 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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