What is the key difference between Apollo IO MCP and Opus Growth?

Apollo IO MCP belongs to the Marketing category with local stdio execution, while Opus Growth belongs to the Marketing category with cloud HTTP/SSE execution.

How do I install Apollo IO MCP or Opus Growth in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Apollo IO MCP and Opus Growth free or paid?

Apollo IO MCP operates under a BYOK (Pay Provider Direct) model (API Key required). Opus Growth operates under a Freemium model (OAuth 2.0).

Which MCP server has more tools and community activity?

Apollo IO MCP lists 5 tools with 2 views and 4 GitHub stars. Opus Growth lists 6 tools with 4 views and 0 GitHub stars.

Can I use both Apollo IO MCP and Opus Growth together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Apollo IO MCP vs Opus Growth

In-depth architectural comparison of the Apollo IO MCP and Opus Growth 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.

At a Glance & Executive Verdict

Apollo IO MCP

Marketing · Local stdio

Quality: 48/100 (Fair) | Auth: API Key required

Opus Growth

Marketing · Remote HTTP/SSE

Quality: 75/100 (Great) | Auth: OAuth 2.0

Verdict Summary: Choose Apollo IO MCP if you need specialized Marketing tools running via a local process. Choose Opus Growth if your workspace requires Marketing integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

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 Opus Growth when:

You need dedicated capabilities in the Marketing domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
Primary tools included: Hosted MCP endpoint, Google OAuth sign-in, Five supported advertising platforms.

Feature & Specification Comparison

Specification	Apollo IO MCP louis030195 Marketing	Opus Growth VerifiedMarketing
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.	Hosted, OAuth-protected MCP server for advertising operations. One connector covers Google Ads, Meta Ads, Microsoft Advertising, TikTok Ads and LinkedIn Ads, plus Search Console, GA4, YouTube, Tag Manager and Google Business Profile. Every write returns a dry-run preview and is applied only after explicit confirmation.

Tools & Capabilities Breakdown

Apollo IO MCP Tools (5)

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

Organization enrichment providing company size, industry, and technologies

Supports pagination and configurable result limits

Opus Growth Tools (6)

Hosted MCP endpoint

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).

Apollo IO MCP Configuration

mcpServers (Claude Desktop / Cursor)

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

Opus Growth Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "opus-growth": {
      "url": "https://mcp.opus-growth.com/mcp"
    }
  }
}

Frequently Asked Questions

Apollo IO MCP is categorized under Marketing and uses a local stdio subprocess. In contrast, Opus Growth belongs to Marketing using remote streaming HTTP/SSE transport. Select Apollo IO MCP when you need capabilities focused on marketing and Opus Growth when you require tools for marketing.

More alternatives to Apollo IO MCP More alternatives to Opus Growth Marketing category hub