List the caller's active subscriptions. Returns id, type, params, created_at, last_fired_at, fire_count for each. Use this to review what you're monitoring before adding more or to find an id to cancel.
AI agents call list_subscriptions to retrieve information from Usgs Earthquakes without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
include_inactive | boolean | — | Include cancelled subscriptions in the response (default false). |
Parameters from the server's own tool schema.
This tool retrieves and displays subscription metadata belonging to the user. It has no side effects—it only queries and returns existing data. The description explicitly frames it as a review/lookup mechanism ('Use this to review what you're monitoring'). No data is created, modified, deleted, or executed. This is a straightforward read operation with minimal security risk.
From the tool's definition Tool description states 'List the caller's active subscriptions' and 'Returns id, type, params, created_at, last_fired_at, fire_count for each.' These are purely informational queries with no modification or deletion capability.
Attacks that exploit this kind of access
List the caller's active subscriptions. Returns id, type, params, created_at, last_fired_at, fire_count for each. Use this to review what you're monitoring before adding more or to find an id to cancel. It is categorised as a Read tool in the Usgs Earthquakes MCP Server, which means it retrieves data without modifying state.
list_subscriptions accepts 1 parameter: include_inactive. The full parameter table on this page comes from the server's own tool schema.
Register the Usgs Earthquakes MCP server in PolicyLayer and add a rule for list_subscriptions: 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 Usgs Earthquakes. Nothing to install.
list_subscriptions 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 list_subscriptions 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 list_subscriptions. 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.
list_subscriptions is provided by the Usgs Earthquakes MCP server (pipeworx-io/mcp-usgs-earthquakes). 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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