What is the key difference between Marrow and Fhir MCP Server?

Marrow belongs to the Biology, Medicine and Bioinformatics category with cloud HTTP/SSE execution, while Fhir MCP Server belongs to the Biology, Medicine and Bioinformatics category with local stdio execution.

How do I install Marrow or Fhir MCP Server 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 Marrow and Fhir MCP Server free or paid?

Marrow operates under a Free / Open Source model (No auth required). Fhir MCP Server operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

Marrow lists 7 tools with 1 views and 2 GitHub stars. Fhir MCP Server lists 13 tools with 2 views and 136 GitHub stars.

Can I use both Marrow and Fhir MCP Server 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

Marrow vs Fhir MCP Server

In-depth architectural comparison of the Marrow and Fhir 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.

At a Glance & Executive Verdict

Marrow

Biology, Medicine and Bioinformatics · Remote HTTP/SSE

Quality: 53/100 (Good) | Auth: No auth required

Fhir MCP Server

Biology, Medicine and Bioinformatics · Local stdio

Quality: 65/100 (Great) | Auth: API Key required

Verdict Summary: Choose Marrow if you need specialized Biology, Medicine and Bioinformatics tools running via a hosted cloud SSE transport. Choose Fhir MCP Server if your workspace requires Biology, Medicine and Bioinformatics integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Marrow when:

You need dedicated capabilities in the Biology, Medicine and Bioinformatics domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: health_summary, list_metrics, metric_daily.

Explore Marrow Details

Choose Fhir MCP Server when:

You need dedicated capabilities in the Biology, Medicine and Bioinformatics domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: FHIR_SERVER_BASE_URL, FHIR_SERVER_CLIENT_ID, FHIR_SERVER_CLIENT_SECRET, FHIR_SERVER_SCOPES, FHIR_SERVER_DISABLE_AUTHORIZATION, FHIR_MCP_HOST, FHIR_MCP_PORT.
Primary tools included: get_capabilities, type, search.

Feature & Specification Comparison

Specification	Marrow Biology, Medicine and Bioinformatics	Fhir MCP Server wso2 Biology, Medicine and Bioinformatics
Summary	Read-only MCP access to your own Apple Health data, mirrored from the Marrow iOS app.	Model Context Protocol server for Fast Healthcare Interoperability Resources (FHIR) APIs. Provides seamless integration with FHIR servers, enabling AI assistants to search, retrieve, create, update, and analyze clinical healthcare data with SMART-on-FHIR authentication support.
Category & Scope	Biology, Medicine and Bioinformatics

Tools & Capabilities Breakdown

Marrow Tools (7)

health_summary

Recent days across activity, heart, sleep and nutrition

list_metrics

Every metric in the mirror, with units and coverage

metric_daily

Daily values for any metric, up to 400 days

metric_samples

Raw records with timestamps and source devices

workouts

Workouts, including set-by-set strength detail

nutrition_log

The meal diary: every logged food with full nutrient detail, by day

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).

Marrow Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "marrow-4": {
      "url": "https://skeletonarmy.tech/mcp"
    }
  }
}

Fhir MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "wso2-fhir-mcp-server": {
      "command": "uvx",
      "args": [
        "fhir-mcp-server"
      ],
      "env": {
        "FHIR_SERVER_BASE_URL": "YOUR_FHIR_SERVER_BASE_URL_HERE",
        "FHIR_SERVER_CLIENT_ID": "YOUR_FHIR_SERVER_CLIENT_ID_HERE",
        "FHIR_SERVER_CLIENT_SECRET": "YOUR_FHIR_SERVER_CLIENT_SECRET_HERE",
        "FHIR_SERVER_SCOPES": "YOUR_FHIR_SERVER_SCOPES_HERE",
        "FHIR_SERVER_DISABLE_AUTHORIZATION": "YOUR_FHIR_SERVER_DISABLE_AUTHORIZATION_HERE",
        "FHIR_MCP_HOST": "YOUR_FHIR_MCP_HOST_HERE",
        "FHIR_MCP_PORT": "YOUR_FHIR_MCP_PORT_HERE"
      }
    }
  }
}

Frequently Asked Questions

Marrow is categorized under Biology, Medicine and Bioinformatics and uses a remote streaming HTTP/SSE transport. In contrast, Fhir MCP Server belongs to Biology, Medicine and Bioinformatics using local stdio subprocess. Select Marrow when you need capabilities focused on biology, medicine and bioinformatics and Fhir MCP Server when you require tools for biology, medicine and bioinformatics.

More alternatives to Marrow More alternatives to Fhir MCP Server Biology, Medicine and Bioinformatics category hub