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Mailchimp MCP

Mailchimp MCP

by damientilman
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python

get_verified_domain

Read-only

Retrieve the full verification and authentication record for a sending domain to confirm it is ready for Mailchimp campaigns.

Instructions

Retrieve the full verification and authentication record for a single sending domain.

Use when you have a domain name and need its exact verified/authenticated state before sending. Use list_verified_domains to browse all domains and discover names instead.

Args: domain_name: The sending domain to inspect (e.g. 'mail.example.com'). Obtain from list_verified_domains.

Returns: JSON with domain, verified (boolean), authenticated (boolean), verification_status, authentication_status.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "domain_name": "<domain_name>"
    },
    "name": "get_verified_domain"
  }
}

Input Schema

NameRequiredDescriptionDefault
accountNo
domain_nameYes

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.7.1

TDQS

A4.4/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=false. Description adds value by specifying the exact return fields (verified, authenticated, etc.) and the condition of use. It does not contradict annotations.

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?

Two sentences plus concise Args and Returns sections. No redundant information, front-loaded with the 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?

For a simple read tool, description covers the return fields and use case. Could optionally mention error handling for missing domains, but overall adequate.

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

Parameters3/5

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

Schema coverage is 0%, so description must compensate. It explains domain_name with an example and how to obtain it, but does not mention the optional account parameter. Thus only partially covers the parameters.

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?

Description clearly states it retrieves the full verification/authentication record for a single sending domain, with specific verb ('Retrieve') and resource ('verified/authentication record'). It distinguishes from sibling list_verified_domains by indicating it is for a single known domain.

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

Usage Guidelines5/5

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

Explicitly states when to use ('when you have a domain name and need its exact verified/authenticated state before sending') and when to use an alternative ('Use list_verified_domains to browse all domains and discover names instead').

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

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