Get the total token balance in the MCP wallet (requires admin password)
AI agents call get_wallet_balance to retrieve information from Sphere MCP Gaming Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a Read operation — it retrieves balance information without modifying state. However, severity is elevated to 'high' rather than 'low' because: (1) it accesses financial account data tied to a payment system, (2) it requires admin credentials suggesting privileged access, and (3) exposure could enable reconnaissance for financial attacks or unauthorized balance monitoring on the blockchain-backed…
From the tool's definition Tool name is 'get_wallet_balance' and description states it retrieves 'the total token balance' — a query operation with no data modification.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
Get the total token balance in the MCP wallet (requires admin password). It is categorised as a Read tool in the Sphere MCP Gaming Server MCP Server, which means it retrieves data without modifying state.
Register the Sphere MCP Gaming Server MCP server in PolicyLayer and add a rule for get_wallet_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 Sphere MCP Gaming Server. Nothing to install.
get_wallet_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_wallet_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_wallet_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_wallet_balance is provided by the Sphere MCP Gaming Server MCP server (mastap/unicity-mcp-gaming). 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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