Get the remaining Wappalyzer API credit balance.
AI agents call get_credit_balance to retrieve information from Wappalyzer MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool purely retrieves information about API credits—a straightforward read operation with no side effects, data modification, or financial transaction. While it provides account billing information, it does not move money or create financial obligations; it merely queries a balance. The blast radius of misuse is minimal (information disclosure only).
From the tool's definition Tool name 'get_credit_balance' and description 'Get the remaining Wappalyzer API credit balance' indicate a read-only query that retrieves account metadata without modifying data.
Attacks that exploit this kind of access
Get the remaining Wappalyzer API credit balance. It is categorised as a Read tool in the Wappalyzer MCP MCP Server, which means it retrieves data without modifying state.
Register the Wappalyzer MCP server in PolicyLayer and add a rule for get_credit_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 Wappalyzer MCP. Nothing to install.
get_credit_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_credit_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_credit_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_credit_balance is provided by the Wappalyzer MCP server (wappalyzer/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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