Druid MCP Server vs Capsulemcp

In-depth architectural comparison of the Druid MCP Server and Capsulemcp 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 Druid MCP Server when:

• You need dedicated capabilities in the Data Platforms domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: OAuth 2.0 (Free / Open Source).
• You have access to required keys: DRUID_ROUTER_URL, DRUID_COORDINATOR_URL, SPRING_PROFILES_ACTIVE, DRUID_MCP_SECURITY_OAUTH2_ENABLED.
• Primary tools included: Apache Druid datasource and schema queries, Lookup configuration and status retrieval, Segment metadata access.

Explore Druid MCP Server Details

Choose Capsulemcp when:

• You need dedicated capabilities in the Data Platforms domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Free / Open Source).
• You have access to required keys: .

Feature & Specification Comparison

Specification	Druid MCP Server iunera Data Platforms	Capsulemcp soil-dev Data Platforms
Summary	Comprehensive MCP server for Apache Druid that provides extensive tools, resources, and prompts for managing and analyzing Druid clusters.	MCP server for Capsule CRM. 81 tools (49 in read-only mode) covering contacts, opportunities, projects, tasks, timeline activity, structured + saved filters, workflow tracks, and file attachments. Two transports — stdio (npx capsulemcp) and HTTP+OAuth for hosted Custom Connectors. Read-only-mode env flag for safer defaults. Apache 2.0.
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": {
    "iunera-druid-mcp-server": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

{
  "mcpServers": {
    "soil-dev-capsulemcp": {
      "command": "npx",
      "args": [
        "-y",
        "cache"
      ],
      "env": {
        "CAPSULE_API_TOKEN": "YOUR_CAPSULE_API_TOKEN_HERE"
      }
    }
  }
}

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