What is the key difference between Hejdar MCP and Platform?

Hejdar MCP belongs to the Security category with local stdio execution, while Platform belongs to the Security category with local stdio execution.

How do I install Hejdar MCP or Platform 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 Hejdar MCP and Platform free or paid?

Hejdar MCP operates under a BYOK (Pay Provider Direct) model (API Key required). Platform operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

Hejdar MCP lists 6 tools with 3 views and 1 GitHub stars. Platform lists 6 tools with 3 views and 14 GitHub stars.

Can I use both Hejdar MCP and Platform 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

Hejdar MCP vs Platform

In-depth architectural comparison of the Hejdar MCP and Platform 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

Hejdar MCP

Security · Local stdio

Quality: 45/100 (Fair) | Auth: API Key required

Platform

Security · Local stdio

Quality: 55/100 (Good) | Auth: API Key required

Verdict Summary: Choose Hejdar MCP if you need specialized Security tools running via a local process. Choose Platform if your workspace requires Security integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Hejdar MCP when:

You need dedicated capabilities in the Security 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: HEJDAR_API_KEY, HEJDAR_API_URL.
Primary tools included: Exposes the hejdar_evaluate MCP tool, Supports ALLOW, DENY, and WOULD_DENY decisions, Accepts READ, WRITE, DELETE, TRANSFER, and EXECUTE actions.

Explore Hejdar MCP Details

Choose Platform when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: SIDCLAW_API_KEY, SIDCLAW_AGENT_ID.
Primary tools included: .

Feature & Specification Comparison

Specification	Hejdar MCP ARKALDA Security	Platform sidclawhq Security
Summary	Runtime policy enforcement for AI agents. Evaluate actions against organization policies before execution, with observe and enforce modes.	Governance proxy for MCP servers. Wraps any upstream server with policy evaluation, human approval workflows, and hash-chain audit trails. 18+ framework integrations. Apache 2.0 SDK.
Category & Scope	Security

Tools & Capabilities Breakdown

Hejdar MCP Tools (6)

Exposes the hejdar_evaluate MCP tool

Supports ALLOW, DENY, and WOULD_DENY decisions

Accepts READ, WRITE, DELETE, TRANSFER, and EXECUTE actions

Supports optional agent names and metadata context

Configures a custom API URL for self-hosted deployments

Reads the API key from an environment variable

Platform Tools (6)

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).

Hejdar MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "arkalda-hejdar-mcp": {
      "command": "uvx",
      "args": [
        "hejdar-mcp"
      ],
      "env": {
        "HEJDAR_API_KEY": "YOUR_HEJDAR_API_KEY_HERE",
        "HEJDAR_API_URL": "YOUR_HEJDAR_API_URL_HERE"
      }
    }
  }
}

Platform Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sidclawhq-platform": {
      "command": "npx",
      "args": [
        "-y",
        "@sidclaw/sdk",
        "sidclaw-mcp-proxy",
        "stdio"
      ],
      "env": {
        "SIDCLAW_API_KEY": "YOUR_SIDCLAW_API_KEY_HERE",
        "SIDCLAW_AGENT_ID": "YOUR_SIDCLAW_AGENT_ID_HERE"
      }
    }
  }
}

Frequently Asked Questions

Hejdar MCP is categorized under Security and uses a local stdio subprocess. In contrast, Platform belongs to Security using local stdio subprocess. Select Hejdar MCP when you need capabilities focused on security and Platform when you require tools for security.

More alternatives to Hejdar MCP More alternatives to Platform Security category hub