Full subscription analytics: active subscriptions, churn rate, MRR, ARPU,
AI agents call get_subscription_health to retrieve information from Indie Metrics 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 Stripe business metrics without creating, modifying, deleting, or executing any operations. It is a straightforward read operation that surfaces financial analytics but does not move money, trigger transactions, or change data state.
From the tool's definition Tool name 'get_subscription_health' and description indicates it retrieves analytics data: 'active subscriptions, churn rate, MRR, ARPU'.
Attacks that exploit this kind of access
Full subscription analytics: active subscriptions, churn rate, MRR, ARPU,. It is categorised as a Read tool in the Indie Metrics MCP Server, which means it retrieves data without modifying state.
Register the Indie Metrics MCP server in PolicyLayer and add a rule for get_subscription_health: 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 Indie Metrics. Nothing to install.
get_subscription_health 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_subscription_health 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_subscription_health. 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_subscription_health is provided by the Indie Metrics MCP server (marccherggi/indie-metrics-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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