Close a micropayment channel and settle the final balances on-chain.
AI agents use close_payment_channel to commit financial operations through Tenzro Ledger MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool finalizes and settles financial balances on a blockchain payment channel. It irreversibly commits financial obligations and moves funds on-chain, making it both Financial and potentially Destructive (channel closure cannot be undone). Financial is the most severe applicable category. Misuse could result in loss of funds or incorrect settlement of balances.
From the tool's definition Close a micropayment channel and settle the final balances on-chain
Attacks that exploit this kind of access
Close a micropayment channel and settle the final balances on-chain. 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.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for close_payment_channel: 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.
close_payment_channel 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 close_payment_channel 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 close_payment_channel. 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.
close_payment_channel 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.
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