Fetch Claude usage data from the dashboard. Returns daily token usage information.
AI agents call get_claude_usage to retrieve information from Claude Usage 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 and queries usage metrics without creating, modifying, deleting, or executing any operations. It has no side effects beyond reading existing data. The blast radius of misuse is minimal—an agent could only access usage statistics that are typically user-specific or already accessible to authenticated users. This is a straightforward Read operation.
From the tool's definition Tool name 'get_claude_usage' and description 'Fetch Claude usage data from the dashboard. Returns daily token usage information.' indicate pure data retrieval with no modification, deletion, or execution of operations.
Attacks that exploit this kind of access
Fetch Claude usage data from the dashboard. Returns daily token usage information. It is categorised as a Read tool in the Claude Usage MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Claude Usage MCP Server MCP server in PolicyLayer and add a rule for get_claude_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 Claude Usage MCP Server. Nothing to install.
get_claude_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_claude_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_claude_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_claude_usage is provided by the Claude Usage MCP Server MCP server (mvacaporale/claude-usage-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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