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Mailchimp MCP Server

Mailchimp MCP Server

by AlexlaGuardia
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

ping

Validate your Mailchimp API key and retrieve account details including name, email, and total subscribers to confirm connectivity and account status.

Instructions

Validate your Mailchimp API key and get account info (name, email, total subscribers).

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "ping"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4.3/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It accurately identifies the operation as a validation and retrieval (likely read-only), and specifies the returned fields. However, it does not explicitly state that it is safe, idempotent, or has no side effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that conveys all necessary information without any extraneous words. It is well-structured and front-loaded with the primary action.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (no parameters, clear purpose), the description is largely complete. However, it does not mention authentication requirements or that the API key must be valid for other calls. The presence of an output schema would further reduce the burden, but it is not provided in context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has no parameters, so the description adds meaning beyond the empty input schema by explaining the purpose and return value. No further parameter documentation is needed.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool validates an API key and returns specific account info (name, email, total subscribers). It uses a specific verb ('Validate') and resource ('Mailchimp API key'), and distinguishes from sibling tools which perform CRUD operations on Mailchimp entities.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for checking API key validity and retrieving basic account info, but does not explicitly state when to use this tool versus alternatives. No guidance on prerequisites (e.g., needing an API key) or when not to use.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server

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