Retrieves the balance of a wallet for a specific asset and chain.
AI agents call get_wallet_balance to retrieve information from Privy MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves wallet balance information without modifying, deleting, or executing any transactions. It is a data retrieval operation with no destructive or financial implications on its own. While the server as a whole manages sensitive blockchain operations, this specific tool is limited to querying balance data, making it a Read-category tool with low severity.
From the tool's definition Tool name 'get_wallet_balance' and description 'Retrieves the balance of a wallet for a specific asset and chain' explicitly indicate a read-only query operation with no side effects.
Attacks that exploit this kind of access
Retrieves the balance of a wallet for a specific asset and chain. It is categorised as a Read tool in the Privy MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Privy MCP 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 Privy MCP 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 Privy MCP Server MCP server (privy-io/privy-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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