create_withdraw_link
Create an LNURL-withdraw link for the operator to receive funds. Opens in browser for QR code scanning with any Lightning wallet. Omit amount_sats to sweep full balance. REQUIRES OPERATOR KEY.
This record as markdown: /tools/io-github-lightningfaucet-lightning-wallet-mcp/create-withdraw-link.md
What create_withdraw_link does on Lightning Wallet
AI agents use create_withdraw_link to commit financial operations through Lightning Wallet, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why create_withdraw_link is rated Critical
This tool enables withdrawal of Bitcoin funds via Lightning Network to an operator-controlled address. Even though withdrawal links require operator authorization, the tool commits financial obligations by creating withdrawal mechanisms that move cryptocurrency out of the wallet. This is a financial operation (moving money), not merely a read, write, or execute action.
From the tool's definition Create an LNURL-withdraw link for the operator to receive funds. Omit amount_sats to sweep full balance. REQUIRES OPERATOR KEY.
Attacks that exploit this kind of access
The rule that runs create_withdraw_link 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 create_withdraw_link, this is the rule to start with:
Any call to create_withdraw_link 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 create_withdraw_link call is checked against it from then on.
Questions about create_withdraw_link
Create an LNURL-withdraw link for the operator to receive funds. Opens in browser for QR code scanning with any Lightning wallet. Omit amount_sats to sweep full balance. REQUIRES OPERATOR 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 create_withdraw_link: 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.
create_withdraw_link 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 create_withdraw_link 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 create_withdraw_link. 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.
create_withdraw_link 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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