Apollo IO MCP vs Mailchimp MCP Server

In-depth architectural comparison of the Apollo IO MCP and Mailchimp MCP Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Apollo IO MCP when:

• You need dedicated capabilities in the Marketing domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
• You have access to required keys: APOLLO_API_KEY.
• Primary tools included: People search with filters for titles, locations, and organizations, People enrichment returning detailed contact and job information, Organization search by keywords, location, and employee ranges.

Explore Apollo IO MCP Details

Choose Mailchimp MCP Server when:

• You need dedicated capabilities in the Marketing domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).

Feature & Specification Comparison

Specification	Apollo IO MCP louis030195 Marketing	Mailchimp MCP Server damientilman Marketing
Summary	B2B sales intelligence and prospecting with Apollo.io. Search for prospects, enrich contacts with emails and phone numbers, discover companies by industry and size, and access Apollo's database of 275M+ contacts.	Mailchimp Marketing API integration with 53 tools for managing campaigns, audiences, reports, automations, landing pages, e-commerce data, and batch operations.
Category & Scope

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "louis030195-apollo-io-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@louis030195/apollo-io-mcp"
      ],
      "env": {
        "APOLLO_API_KEY": "YOUR_APOLLO_API_KEY_HERE"
      }
    }
  }
}

{
  "mcpServers": {
    "damientilman-mailchimp-mcp-server": {
      "command": "uvx",
      "args": [
        "mailchimp-mcp"
      ],
      "env": {
        "MAILCHIMP_API_KEY": "YOUR_MAILCHIMP_API_KEY_HERE",
        "MAILCHIMP_READ_ONLY": "YOUR_MAILCHIMP_READ_ONLY_HERE",
        "MAILCHIMP_AUDIT_LOG": "YOUR_MAILCHIMP_AUDIT_LOG_HERE"
      }
    }
  }
}

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