# ChatRail

Monitors WhatsApp connections, inspects delivery issues, and retries webhooks directly inside your AI client. Built for managing ChatRail workspaces without browser tabs.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: chatrail
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/chatrail/chatrail_mcp
- Updated: 2026-10-07
- HTML: https://affpapa.org/en/nevibecode/mcp/chatrail

## What it does

This MCP server links your development client to a ChatRail workspace. It lets your assistant check connection statuses, query group sizes, and diagnose why a specific WhatsApp message failed to reach the recipient. Privacy safeguards are built in. Tool outputs intentionally omit text bodies, phone numbers, and workspace credentials.

State modifications follow a two-step confirmation pattern. Actions like rescheduling a draft, canceling an upcoming message, or replaying a dead webhook display a preview first. The server executes them only when invoked again with `confirm: true`. Direct message dispatch is not supported through MCP; sending still requires standard REST calls.

Server access demands a ChatRail Core + AI or Team subscription. You can link remotely via OAuth at `https://www.chatrail.dev/v1/mcp` or launch a local stdio process via the `chatrail-mcp` npm package using a workspace API key with `mcp:read` or `mcp:write` scopes.

## Requirements
- Remote server: `https://www.chatrail.dev/v1/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http chatrail https://www.chatrail.dev/v1/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add chatrail --url https://www.chatrail.dev/v1/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "chatrail": {
            "url": "https://www.chatrail.dev/v1/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "chatrail": {
            "type": "http",
            "url": "https://www.chatrail.dev/v1/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http chatrail https://www.chatrail.dev/v1/mcp
```

## When to use it
- diagnose failed WhatsApp message deliveries
- reschedule or cancel pending queued messages
- replay dropped or failed webhook notifications
- audit WhatsApp connection states across a workspace

## Example prompts
- Why did message `msg_123` fail to send?
- List upcoming scheduled messages and push the first one back one hour.
- Replay the webhook delivery for `wh_789`.

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