pay_lightning_address
Pay to a Lightning address (user@domain.com format). Works with an operator key (pays from the operator wallet) or an agent key.
This record as markdown: /tools/io-github-lightningfaucet-lightning-wallet-mcp/pay-lightning-address.md
What pay_lightning_address does on Lightning Wallet
AI agents use pay_lightning_address to commit financial operations through Lightning Wallet, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why pay_lightning_address is rated Critical
Tool directly transfers Bitcoin funds via Lightning Network, committing financial obligations irreversibly.
From the tool's definition Pay to a Lightning address. Moves money from wallet via operator or agent key.
Attacks that exploit this kind of access
The rule that runs pay_lightning_address safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Lightning Wallet, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pay_lightning_address, this is the rule to start with:
Any call to pay_lightning_address is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Lightning Wallet, apply this rule, and every pay_lightning_address call is checked against it from then on.
Questions about pay_lightning_address
Pay to a Lightning address (user@domain.com format). Works with an operator key (pays from the operator wallet) or an agent key. It is categorised as a Financial tool in the Lightning Wallet MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Lightning Wallet MCP server in PolicyLayer and add a rule for pay_lightning_address: 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 Lightning Wallet. Nothing to install.
pay_lightning_address 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 pay_lightning_address 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 pay_lightning_address. 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.
pay_lightning_address is provided by the Lightning Wallet MCP server (lightning-wallet-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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