Get account balance
AI agents call get_balance to retrieve information from Nomba 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 account balance data with no side effects. While it is part of a financial platform (Nomba payment system), the operation itself is read-only and does not move money, commit financial obligations, or modify data. It poses minimal risk as it only exposes financial information visibility rather than enabling transactions or fund transfers.
From the tool's definition Tool name 'get_balance' and description 'Get account balance' indicate a read-only query operation that retrieves account balance information without modifying or moving funds.
Attacks that exploit this kind of access
Get account balance. It is categorised as a Read tool in the Nomba MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Nomba 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 Nomba 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 Nomba MCP Server MCP server (theyahia/nomba-mcp). 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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