sbtc_bridge_withdraw
Get withdrawal information for converting sBTC back to BTC.
This record as markdown: /tools/markmhendrickson-mcp-server-bitcoin/sbtc-bridge-withdraw.md
What sbtc_bridge_withdraw does on Bitcoin wallet MCP server
AI agents use sbtc_bridge_withdraw to commit financial operations through Bitcoin wallet MCP server, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why sbtc_bridge_withdraw is rated Critical
This tool facilitates the conversion of sBTC tokens back to BTC through a bridge mechanism, which constitutes a financial operation involving asset movement between chains.
From the tool's definition 'withdrawal', 'converting sBTC back to BTC', 'bridge'
Attacks that exploit this kind of access
The rule that runs sbtc_bridge_withdraw safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Bitcoin wallet MCP server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sbtc_bridge_withdraw, this is the rule to start with:
Any call to sbtc_bridge_withdraw is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Bitcoin wallet MCP server, apply this rule, and every sbtc_bridge_withdraw call is checked against it from then on.
Questions about sbtc_bridge_withdraw
Get withdrawal information for converting sBTC back to BTC. It is categorised as a Financial tool in the Bitcoin wallet MCP server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Bitcoin wallet MCP server MCP server in PolicyLayer and add a rule for sbtc_bridge_withdraw: 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 Bitcoin wallet MCP server. Nothing to install.
sbtc_bridge_withdraw 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 sbtc_bridge_withdraw 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 sbtc_bridge_withdraw. 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.
sbtc_bridge_withdraw is provided by the Bitcoin wallet MCP server MCP server (markmhendrickson/mcp-server-bitcoin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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