What is the key difference between Sonar MCP Server and Emilia Protocol?

Sonar MCP Server belongs to the Security category with local stdio execution, while Emilia Protocol belongs to the Security category with local stdio execution.

How do I install Sonar MCP Server or Emilia Protocol 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 Sonar MCP Server and Emilia Protocol free or paid?

Sonar MCP Server operates under a Free / Open Source model (No auth required). Emilia Protocol operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Sonar MCP Server lists 0 tools with 0 views and 0 GitHub stars. Emilia Protocol lists 3 tools with 4 views and 615 GitHub stars.

Can I use both Sonar MCP Server and Emilia Protocol 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

Sonar MCP Server vs Emilia Protocol

In-depth architectural comparison of the Sonar MCP Server and Emilia Protocol 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

Sonar MCP Server

Security · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Emilia Protocol

Security · Local stdio

Quality: 71/100 (Great) | Auth: No auth required

Verdict Summary: Choose Sonar MCP Server if you need specialized Security tools running via a local process. Choose Emilia Protocol 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 Sonar MCP Server when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Sonar MCP Server Details

Choose Emilia Protocol when:

You need dedicated capabilities in the Security domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: ep_guard_action, ep_check_signoff, ep_verify_receipt.

Explore Emilia Protocol Details

Feature & Specification Comparison

Specification	S Sonar MCP Server Security	Emilia Protocol emiliaprotocol Security
Summary	Read-only SonarQube Community Build access for AI agents: issues, hotspots, rules, code snippets	Human sign-off + trust receipts for AI agents: requires a named human's approval before an irreversible action (payment release, record change, deploy), then mints an offline-verifiable Ed25519 Trust Receipt. Also exposes trust profiles, receipt verification, disputes, and delegation. Apache-2.0; policy engine formally verified. Install: npx -y @emilia-protocol/mcp-server.
Category & Scope

Tools & Capabilities Breakdown

Sonar MCP Server Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Emilia Protocol Tools (3)

ep_guard_action

Request authorization before an irreversible action: payments, wire transfers, fund releases, deletions, record or account changes, or sending messages with real-world effect. Submits the exact action for policy evaluation and human authorization. This MCP tool does not itself sit at the executor choke point: even after approval, the executor MUST match the returned action_hash and atomically consume the receipt before effect. If BLOCKED, poll ep_check_signoff with the receipt_id.

ep_check_signoff

Poll a pending authorization after ep_guard_action returns BLOCKED. Pass the receipt_id. Returns PENDING, APPROVED_PENDING_CONSUME, CONSUMED, or DENIED. Approval alone is not permission to execute: the executor must match action_hash and atomically consume the receipt at its own choke point.

ep_verify_receipt

Ask the configured EMILIA service to verify a stored trust receipt and report its hash and anchor status. Read-only, but not an offline verifier: the result is the service response for the supplied receipt_id.

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).

Sonar MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sonar-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "sonar-mcp-server"
      ]
    }
  }
}

Emilia Protocol Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "emiliaprotocol-emilia-protocol": {
      "command": "npx",
      "args": [
        "-y",
        "@emilia-protocol/mcp-server"
      ]
    }
  }
}

Frequently Asked Questions

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

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