isw_check_prepaid_balance
Check prepaid card balance.
This record as markdown: /tools/io-github-dairus01-interswitch-mcp-server/isw-check-prepaid-balance.md
What isw_check_prepaid_balance does on Interswitch
AI agents call isw_check_prepaid_balance to retrieve information from Interswitch without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why isw_check_prepaid_balance is rated Low
This tool retrieves balance data from a prepaid card account. It is a read-only operation with no side effects, no data modification, no code execution, no deletion, and no financial transaction. While it operates in a financial domain (prepaid cards), the tool itself does not move money or commit financial obligations—it only queries the current balance state.
From the tool's definition Tool name 'isw_check_prepaid_balance' and description 'Check prepaid card balance' indicate a query operation that retrieves account balance information without modifying, deleting, or moving funds.
Attacks that exploit this kind of access
The rule that runs isw_check_prepaid_balance safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Interswitch, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For isw_check_prepaid_balance, this is the rule to start with:
isw_check_prepaid_balance is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Interswitch, apply this rule, and every isw_check_prepaid_balance call is checked against it from then on.
Questions about isw_check_prepaid_balance
Check prepaid card balance. It is categorised as a Read tool in the Interswitch MCP Server, which means it retrieves data without modifying state.
Register the Interswitch MCP server in PolicyLayer and add a rule for isw_check_prepaid_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 Interswitch. Nothing to install.
isw_check_prepaid_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 isw_check_prepaid_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 isw_check_prepaid_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.
isw_check_prepaid_balance is provided by the Interswitch MCP server (interswitch-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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