Arca MCP Server: Install & Setup

Install Arca in Claude Code

Claude Code

claude mcp add --transport http arca https://mcp.arca.build

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "arca": {
      "url": "https://mcp.arca.build"
    }
  }
}

Frequently asked questions

What does the Arca MCP server do?

Arca is a private data vault where your AI stores your structured data, semantic memory and skills.

Is the Arca MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Arca run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Arca to Claude Code?

Run: claude mcp add --transport http arca https://mcp.arca.build

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