Get the number of credits remaining in your ZeroBounce account.
AI agents call get_credits to retrieve information from Zerobounce without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a straightforward data retrieval operation—querying the current credit balance of a ZeroBounce account. It has no capability to modify, delete, execute commands, or trigger external operations. The read-only nature and informational purpose classify it as a Read operation with low severity, as misuse would only expose account credit information without causing harm.
From the tool's definition Tool name 'get_credits' and description 'Get the number of credits remaining in your ZeroBounce account' indicate a read-only query operation that retrieves account credit balance information without modification or side effects.
Attacks that exploit this kind of access
Get the number of credits remaining in your ZeroBounce account. It is categorised as a Read tool in the Zerobounce MCP Server, which means it retrieves data without modifying state.
Register the Zerobounce MCP server in PolicyLayer and add a rule for get_credits: 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 Zerobounce. Nothing to install.
get_credits 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_credits 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_credits. 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_credits is provided by the Zerobounce MCP server (@zerobounce/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_credits is one line of Zerobounce's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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