Relay MCP Server: Install & Setup

Install Relay in Claude Code

Remote URL

Claude Code

claude mcp add --transport http relay https://mcp.relaygpu.com/mcp

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

{
  "mcpServers": {
    "relay": {
      "url": "https://mcp.relaygpu.com/mcp"
    }
  }
}

npm

Claude Code

claude mcp add relay -e RELAY_API_KEY=... -- npx -y @relaygpu/mcp

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

{
  "mcpServers": {
    "relay": {
      "command": "npx",
      "args": [
        "-y",
        "@relaygpu/mcp"
      ],
      "env": {
        "RELAY_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Relay MCP server do?

Run any Relay model (image, video, audio, LLM), poll tasks, upload files and search Relay's docs.

Is the Relay 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 Relay run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Relay to Claude Code?

Run: claude mcp add --transport http relay https://mcp.relaygpu.com/mcp

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