Get API usage statistics for a date range. Shows validation counts by status and sub-status.
AI agents call get_api_usage 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 queries and returns API usage metrics and statistics for a specified date range. It has no side effects, does not modify data, execute code, or trigger external operations. It is a read-only retrieval of metadata about past API activity, similar to viewing logs or dashboards.
From the tool's definition Tool description states 'Get API usage statistics' and 'Shows validation counts' — purely retrieves historical usage data without modifying or executing operations.
Attacks that exploit this kind of access
Get API usage statistics for a date range. Shows validation counts by status and sub-status. 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_api_usage: 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_api_usage 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_api_usage 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_api_usage. 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_api_usage 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_api_usage 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.
Teams ship this data inside their own products. See what a licence covers →