Get the balance of the node
AI agents call get-balance to retrieve information from Phoenixd 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 financial information (wallet balance) without modifying, executing, or spending funds. It is a read-only query. While the server manages a Bitcoin wallet (a financial asset), this particular tool only inspects state and does not move money or create obligations. Severity is low because misuse would only expose information, not cause financial loss or irreversible damage.
From the tool's definition Tool name is 'get-balance' and description states 'Get the balance of the node' — a pure query operation with no side effects.
Attacks that exploit this kind of access
Get the balance of the node. It is categorised as a Read tool in the Phoenixd MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Phoenixd MCP Server MCP server in PolicyLayer and add a rule for get-balance: 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 Phoenixd MCP Server. Nothing to install.
get-balance 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 get-balance 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 get-balance. 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.
get-balance is provided by the Phoenixd MCP Server MCP server (sharmaz/phoenixd-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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