ONCE MCP Server: Install & Setup

Install ONCE in Claude Code

Claude Code

claude mcp add --transport http once-once https://beta.once.app/api/mcp

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

{
  "mcpServers": {
    "once-once": {
      "url": "https://beta.once.app/api/mcp"
    }
  }
}

Frequently asked questions

What does the ONCE MCP server do?

Music distribution for agents: upload, AI-check, submit and track releases on ONCE.

Is the ONCE 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 ONCE run locally or remotely?

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

How do I add ONCE to Claude Code?

Run: claude mcp add --transport http once-once https://beta.once.app/api/mcp

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