fund_user_wallet · Tenzro Ledger MCP: Risk & Policy

WHAT IT DOES

What fund_user_wallet does on Tenzro Ledger MCP

AI agents use fund_user_wallet to commit financial operations through Tenzro Ledger MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why fund_user_wallet needs a policy

This tool moves funds from the app treasury to a user wallet, which is a financial operation involving the transfer of money/assets. Misuse could result in unauthorized draining of treasury funds, making it critical severity.

From the tool's definition "Fund a user wallet from the app treasury"

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

fund_user_wallet Approval-gated

Any call to fund_user_wallet is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "fund_user_wallet": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Tenzro Ledger MCP, so you can run agents against it safely.

FAQ

Questions about fund_user_wallet

What does the fund_user_wallet tool do? +

Fund a user wallet from the app treasury. It is categorised as a Financial tool in the Tenzro Ledger MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on fund_user_wallet? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for fund_user_wallet: 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 Tenzro Ledger MCP. Nothing to install.

What risk level is fund_user_wallet? +

fund_user_wallet is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit fund_user_wallet? +

Yes. Add a rate_limit block to the fund_user_wallet 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.

How do I block fund_user_wallet completely? +

Set action: deny in the PolicyLayer policy for fund_user_wallet. 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.

What MCP server provides fund_user_wallet? +

fund_user_wallet is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.