# Loadster

Wires your agent into Loadster's cloud load testing platform, so scripts, scenarios, monitors and results stay inside the chat.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: loadster
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/loadster/loadster-mcp
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/mcp/loadster

## What it does

Loadster runs cloud load testing and synthetic monitoring. Its MCP server sits at `https://api.loadster.com/mcp` and speaks Streamable HTTP. An agent connected to it can author load test scripts, assemble scenarios, set up monitors and pull run results from your Loadster account.

Claude Code users get a plugin from the repository. It registers the server and adds skills for the usual workflow: `setup` to connect, `setup-script` for a first script, `setup-scenario` for a first scenario, `setup-monitor` for a first monitor, `load-test` for a full run, and `results` to read what happened. Skip the plugin and you can register the server directly; Claude handles the OAuth handshake for you.

OAuth 2.1 is the preferred way in. Personal access tokens cover clients that cannot do OAuth, plus CI jobs and scripted agents. Create one in the dashboard under **Settings → API & MCP → Personal Access Tokens**, copy it immediately since it is shown once, and send it as `Authorization: Bearer YOUR_TOKEN`. A token carries your identity inside the team where it was created, so guard it like a password. Loadster hosts the server itself; its source is not in this repository.

## Requirements
- Remote server: `https://api.loadster.com/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http loadster-mcp https://api.loadster.com/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add loadster --url https://api.loadster.com/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "loadster": {
            "url": "https://api.loadster.com/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "loadster": {
            "type": "http",
            "url": "https://api.loadster.com/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http loadster https://api.loadster.com/mcp
```

## When to use it
- write a first Playwright load test script
- build a multi-step load test scenario
- stand up a synthetic monitor for a key page
- run a full load test and read the metrics
- dig through results from an earlier run in chat

## Example prompts
- List my Loadster projects
- Help me write a load test script for the checkout page
- Set up a synthetic monitor for the homepage

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md