AI agents call gumroad_list_subscribers to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
email | string | — | Filter by subscriber email |
api_key | string | Yes | Gumroad access token |
product_id | string | Yes | Product ID of the subscription product |
Parameters from the server's own tool schema.
This tool retrieves subscriber information from Gumroad membership/subscription products. It queries existing data without creating, modifying, deleting, or executing operations. The blast radius of misuse is low: an attacker could view subscriber lists but cannot modify accounts, delete data, or trigger financial transactions. Confidence is high because the intent is explicit in both name and description.
From the tool's definition Tool name contains 'list' and description states 'List subscribers' — both indicate data retrieval with no modification or deletion.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
List subscribers for a Gumroad membership/subscription product. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
gumroad_list_subscribers accepts 3 parameters: email, api_key, product_id. Required: api_key, product_id. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for gumroad_list_subscribers: 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 UnClick. Nothing to install.
gumroad_list_subscribers 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 gumroad_list_subscribers 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 gumroad_list_subscribers. 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.
gumroad_list_subscribers is provided by the UnClick MCP server (@unclick/mcp-server). 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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