AI agents call mailchimp_search_members 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 |
|---|---|---|---|
query | string | Yes | Search query (email address, name, etc.) |
api_key | string | Yes | Mailchimp API key |
list_id | string | — | Limit search to a specific audience ID |
Parameters from the server's own tool schema.
This tool searches and retrieves subscriber information from Mailchimp audiences. While it is fundamentally a read operation (no data modification), the medium severity reflects that subscriber lists contain personally identifiable information (PII) including email addresses and potentially profile data. Unauthorized or excessive access could expose sensitive customer data, constituting a moderate security risk.
From the tool's definition Tool description states 'Search for subscribers' which retrieves subscriber data without modifying it. The name 'search_members' indicates a query operation.
Risk signalsAccepts freeform code/query input (query) · Handles credentials or secrets (api_key)
Attacks that exploit this kind of access
Search for subscribers across all or a specific Mailchimp audience. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
mailchimp_search_members accepts 3 parameters: query, api_key, list_id. Required: query, api_key. 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 mailchimp_search_members: 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.
mailchimp_search_members 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 mailchimp_search_members 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 mailchimp_search_members. 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.
mailchimp_search_members 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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