AI agents use freeze_balance_v2 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 |
|---|---|---|---|
amount | string | — | Amount to freeze in Sun (1 TRX = 1,000,000 Sun) |
network | string | — | Network name. Defaults to mainnet. |
resource | string | — | Resource type to get. Defaults to BANDWIDTH. |
Parameters from the server's own tool schema.
Freezing (staking) TRX commits the user's funds by locking them in a staking contract on the TRON blockchain. This is a financial operation that ties up real cryptocurrency assets, limiting their availability. While it is not a direct transfer of funds to another party, it constitutes a financial commitment and is reversible only after an unbonding/unfreeze period, making misuse potentially costly and impactful.
From the tool's definition Freeze TRX to get resources (Stake 2.0)
Attacks that exploit this kind of access
Freeze TRX to get resources (Stake 2.0). 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.
freeze_balance_v2 accepts 3 parameters: amount, network, resource. 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 freeze_balance_v2: 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.
freeze_balance_v2 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 freeze_balance_v2 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 freeze_balance_v2. 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.
freeze_balance_v2 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.
Teams ship this data inside their own products. See what a licence covers →