Get BTC addresses from a connected Ledger device for all address
AI agents call ledger_get_addresses to retrieve information from Bitcoin wallet MCP server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves blockchain wallet addresses from a hardware device. Address retrieval is a read operation that queries data without modifying, executing code, deleting data, or moving funds. While the server operates in a financial domain (Bitcoin wallets), this specific tool performs only information retrieval.
From the tool's definition Tool name is 'ledger_get_addresses' and description states 'Get BTC addresses from a connected Ledger device for all address'. The verb 'get' and the action of retrieving addresses are read-only operations with no side effects.
Attacks that exploit this kind of access
Get BTC addresses from a connected Ledger device for all address. It is categorised as a Read tool in the Bitcoin wallet MCP server MCP Server, which means it retrieves data without modifying state.
Register the Bitcoin wallet MCP server MCP server in PolicyLayer and add a rule for ledger_get_addresses: 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.
ledger_get_addresses is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ledger_get_addresses 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 ledger_get_addresses. 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.
ledger_get_addresses 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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