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Emilia Protocol

Emilia Protocol is an MCP server that adds finance tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Exact-action approval for consequential agent actions: request, track, and verify signed receipts. It has 599 GitHub stars, is released under the Apache-2.0 license and runs locally with npx -y @emilia-protocol/mcp-server.

github.com/emiliaprotocol/emilia-protocol (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

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Install Emilia Protocol

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "emilia-protocol": {
      "command": "npx",
      "args": [
        "-y",
        "@emilia-protocol/mcp-server"
      ],
      "env": {
        "EP_API_KEY": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env EP_API_KEY=your-value --transport stdio emilia-protocol -- npx -y @emilia-protocol/mcp-server

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "emilia-protocol": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@emilia-protocol/mcp-server"
      ],
      "env": {
        "EP_API_KEY": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "ep_api_key",
      "description": "EP_API_KEY",
      "password": true
    }
  ],
  "servers": {
    "emilia-protocol": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@emilia-protocol/mcp-server"
      ],
      "env": {
        "EP_API_KEY": "${input:ep_api_key}"
      }
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
EP_API_KEYsecretNoAPI key for live action-guard, signoff, and write operations. Public receipt lookup may work without it.
EP_INCLUDE_PROTOCOL_TOOLSNoSet to true to advertise handshake, commit, and delegation tools in addition to the default three-tool action front door.
EP_INCLUDE_REGISTRY_TOOLSNoSet to true to advertise the complete 36-tool legacy registry and reputation catalog.

About Emilia Protocol

An agent prepares an $82,000 supplier payment. Someone approves it. Then the amount or bank destination changes. The earlier approval must not release the changed payment.

  • agent-security
  • agentic-ai
  • ai-agents
  • authorization
  • cryptography
  • formal-verification
  • ietf
  • mcp
  • model-context-protocol
  • security

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FAQ

Emilia Protocol FAQ

Still curious? Email info@appsgit.com.

How do I install the Emilia Protocol MCP server?

Add the command npx -y @emilia-protocol/mcp-server to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Emilia Protocol free?

The server is open source under the Apache-2.0 license, so running it is free. It needs credentials (EP_API_KEY) for the service it connects to, which may require a paid account.

Is Emilia Protocol actively maintained?

The most recent commit was on Oct 7, 2026. The latest release is v1.0.0, published Mar 27, 2026. appsgit only lists MCP servers with a commit in the last six months.