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ARC-1

ARC-1 is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. MCP server for SAP ABAP systems. It has 238 GitHub stars, is released under the MIT license and runs locally with npx -y arc-1.

github.com/arc-mcp/arc-1 (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 ARC-1

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

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "arc-1": {
      "command": "npx",
      "args": [
        "-y",
        "arc-1"
      ],
      "env": {
        "SAP_URL": "your-value",
        "SAP_USER": "your-value",
        "SAP_PASSWORD": "your-value"
      }
    }
  }
}

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

Claude Code

claude mcp add --env SAP_URL=your-value --env SAP_USER=your-value --env SAP_PASSWORD=your-value --transport stdio arc-1 -- npx -y arc-1

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "arc-1": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "arc-1"
      ],
      "env": {
        "SAP_URL": "your-value",
        "SAP_USER": "your-value",
        "SAP_PASSWORD": "your-value"
      }
    }
  }
}

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

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "sap_password",
      "description": "SAP_PASSWORD",
      "password": true
    }
  ],
  "servers": {
    "arc-1": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "arc-1"
      ],
      "env": {
        "SAP_URL": "your-value",
        "SAP_USER": "your-value",
        "SAP_PASSWORD": "${input:sap_password}"
      }
    }
  }
}

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
SAP_URLYesSAP system URL (e.g., http://host:50000)
SAP_USERYesSAP username
SAP_PASSWORDsecretYesSAP password
SAP_CLIENTNoSAP client number
SAP_LANGUAGENoSAP logon language
SAP_INSECURENoSkip TLS certificate verification
SAP_ALLOW_WRITESNoAllow ABAP object mutations (safe default: false)

About ARC-1

ARC-1 (pronounced arc one [ɑːrk wʌn]) — Enterprise-ready MCP server for SAP ABAP systems. Secure by default, deployable to BTP or on-premise, and hardened with large unit/integration/E2E test coverage.

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FAQ

ARC-1 FAQ

Still curious? Email info@appsgit.com.

How do I install the ARC-1 MCP server?

Add the command npx -y arc-1 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 ARC-1 free?

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

Is ARC-1 actively maintained?

The most recent commit was on Oct 24, 2026. The latest release is v1.9.0, published Oct 23, 2026. appsgit only lists MCP servers with a commit in the last six months.