unsubscribe_member

A write tool on the Mailchimp MCP server.

SERVERMailchimp MCP SOURCEdamientilman/mailchimp-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/damientilman-mailchimp-mcp-server/unsubscribe-member.md

WHAT IT DOES

What unsubscribe_member does on Mailchimp MCP

AI agents use unsubscribe_member to create or update resources in Mailchimp MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mailchimp MCP environment.

RISK

Why unsubscribe_member is rated Medium

Based on the name, this tool likely changes a member's subscription status to unsubscribed in Mailchimp. This is a Write operation (modifying a member's status), but it could have significant impact as it affects communication preferences and marketing lists.

From the tool's definition Tool name 'unsubscribe_member' — description is empty and uninformative.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unsubscribe_member safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mailchimp MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unsubscribe_member, this is the rule to start with:

unsubscribe_member Rate-limited

unsubscribe_member stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unsubscribe_member": {
      "limits": [
        {
          "counter": "unsubscribe_member_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mailchimp MCP, apply this rule, and every unsubscribe_member call is checked against it from then on.

FAQ

Questions about unsubscribe_member

What does the unsubscribe_member tool do? +

unsubscribe_member is a write tool on the Mailchimp MCP server. It is categorised as a Write tool in the Mailchimp MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unsubscribe_member? +

Register the Mailchimp MCP server in PolicyLayer and add a rule for unsubscribe_member: 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 Mailchimp MCP. Nothing to install.

What risk level is unsubscribe_member? +

unsubscribe_member is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit unsubscribe_member? +

Yes. Add a rate_limit block to the unsubscribe_member 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.

How do I block unsubscribe_member completely? +

Set action: deny in the PolicyLayer policy for unsubscribe_member. 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.

What MCP server provides unsubscribe_member? +

unsubscribe_member is provided by the Mailchimp MCP server (damientilman/mailchimp-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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