OpenTrain MCP Server

by opentrain-ai Your server? Claim it

local only

OpenTrain runs on your own machine — the client starts it, so there is no endpoint to ping. 1 455 installs a week from npm.

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

The linked repository no longer exists on GitHub — it was deleted or made private.

Installs per day peak 425 · avg 107 · +50% w/w

a month agotoday

1 455

Installs / week

npm · @opentrain-ai/mcp

—

Stars

on GitHub

—

Last commit

44 releases in 90 days

—

License

language unknown

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add opentrain -- npx -y @opentrain-ai/mcp

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

{
  "mcpServers": {
    "opentrain": {
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.opentrain]
command = "npx"
args = ["-y", "@opentrain-ai/mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "opentrain": {
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "opentrain": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@opentrain-ai/mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: OPENTRAIN_PERSONAL_API_TOKEN (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).

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OpenTrain — questions

Answers built from our own checks of this server.

Why is there no uptime for OpenTrain?

OpenTrain runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @opentrain-ai/mcp was installed 1 455 times last week.

Is OpenTrain still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect OpenTrain?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @opentrain-ai/mcp straight from npm; nothing to host, nothing to sign up for.

How many people use OpenTrain?

The npm package @opentrain-ai/mcp was installed 1 455 times in the last week. Week over week that is +50%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.