MCP Server

OpenTrain MCP Server

Name: OpenTrain MCP Server
Author: io.github.OpenTrain-AI

io.github.OpenTrain-AI/opentrain

Repository Registry

What is the OpenTrain MCP server?

Hire human data labelers, RLHF annotators, and evaluators from your coding agent.

How to install OpenTrain

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

OPENTRAIN_PERSONAL_API_TOKEN
secret
OpenTrain personal API token (ot_pat_...). Optional: if absent, the server can register an anonymous agent account at runtime for a human to claim.
OPENTRAIN_API_BASE_URL
OpenTrain API base URL. Defaults to https://app.opentrain.ai.

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "opentrain": {
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ],
      "env": {
        "OPENTRAIN_PERSONAL_API_TOKEN": "<YOUR_OPENTRAIN_PERSONAL_API_TOKEN>",
        "OPENTRAIN_API_BASE_URL": "<YOUR_OPENTRAIN_API_BASE_URL>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "opentrain": {
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ],
      "env": {
        "OPENTRAIN_PERSONAL_API_TOKEN": "<YOUR_OPENTRAIN_PERSONAL_API_TOKEN>",
        "OPENTRAIN_API_BASE_URL": "<YOUR_OPENTRAIN_API_BASE_URL>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "opentrain": {
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ],
      "env": {
        "OPENTRAIN_PERSONAL_API_TOKEN": "<YOUR_OPENTRAIN_PERSONAL_API_TOKEN>",
        "OPENTRAIN_API_BASE_URL": "<YOUR_OPENTRAIN_API_BASE_URL>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "opentrain": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ],
      "env": {
        "OPENTRAIN_PERSONAL_API_TOKEN": "<YOUR_OPENTRAIN_PERSONAL_API_TOKEN>",
        "OPENTRAIN_API_BASE_URL": "<YOUR_OPENTRAIN_API_BASE_URL>"
      }
    }
  }
}

Claude Code

claude mcp add opentrain --env OPENTRAIN_PERSONAL_API_TOKEN=<YOUR_OPENTRAIN_PERSONAL_API_TOKEN> --env OPENTRAIN_API_BASE_URL=<YOUR_OPENTRAIN_API_BASE_URL> -- npx -y @opentrain-ai/mcp