📱 LigueLead MCP Server

MCP Server for sending SMS, SMS Flash, and voice calls in Brazil via the LigueLead API. Enable Claude, Cursor, Windsurf, and any MCP-compatible AI agent to send real communications — no code, no complex setup.

🇧🇷 Brazilian CPaaS · BRL pricing · PIX payments · PT-BR support

Available tools

Tool	Description
`send_sms`	Send SMS or SMS Flash campaign to Brazilian phone numbers
`list_voice_uploads`	List all uploaded voice audio files
`get_voice_upload`	Get details of a specific voice upload
`upload_voice_audio`	Upload MP3/WAV audio for voice campaigns
`send_voice_message`	Send a voice campaign to a list of phones

Quick start

Option 1: npx (recommended)

No installation needed — just add to your MCP client config:

{
  "mcpServers": {
    "liguelead": {
      "command": "npx",
      "args": ["-y", "@liguelead/mcp-server"],
      "env": {
        "LIGUELEAD_API_TOKEN": "your-token",
        "LIGUELEAD_APP_ID": "your-app-id",
        "TRANSPORT": "stdio"
      }
    }
  }
}

Option 2: Clone & build

git clone https://github.com/liguelead/mcp.git
cd mcp
npm install
cp .env.example .env  # Edit with your credentials
npm run build
npm start

The server starts at http://localhost:3000 by default.

Getting your credentials

Go to areadocliente.liguelead.app.br
Navigate to Integrações → API Token
Create an App and copy the API Token and App ID

Transports

Transport	Use case	Env var
Streamable HTTP (default)	Remote server, any MCP client	`TRANSPORT=http`
stdio	Local — Claude Desktop / Claude Code / Cursor	`TRANSPORT=stdio`

Client configuration

Claude Desktop (stdio)

Edit claude_desktop_config.json:

{
  "mcpServers": {
    "liguelead": {
      "command": "npx",
      "args": ["-y", "@liguelead/mcp-server"],
      "env": {
        "LIGUELEAD_API_TOKEN": "your-token",
        "LIGUELEAD_APP_ID": "your-app-id",
        "TRANSPORT": "stdio"
      }
    }
  }
}

Claude Code

claude mcp add -s user liguelead \
  -e LIGUELEAD_API_TOKEN=your-token \
  -e LIGUELEAD_APP_ID=your-app-id \
  -e TRANSPORT=stdio \
  -- npx -y @liguelead/mcp-server

Cursor / Windsurf

Add to your MCP settings with the same configuration as Claude Desktop above.

Remote HTTP server

Any MCP client that supports Streamable HTTP can connect via:

POST https://your-server.com/mcp

Credentials stay on the server — the client doesn't need them.

mcp-remote bridge

For clients that don't support HTTP natively (e.g., Claude Desktop connecting to a remote server):

{
  "mcpServers": {
    "liguelead": {
      "command": "npx",
      "args": ["mcp-remote", "https://your-server.com/mcp"]
    }
  }
}

Deploy

Docker

docker build -t liguelead-mcp .
docker run -d -p 3000:3000 \
  -e LIGUELEAD_API_TOKEN=your-token \
  -e LIGUELEAD_APP_ID=your-app-id \
  liguelead-mcp

Railway / Render

Connect the Git repository
Set environment variables: LIGUELEAD_API_TOKEN, LIGUELEAD_APP_ID
Build command: npm install && npm run build
Start command: npm start

Credential security

Scenario	Where credentials live
stdio (local)	Environment variables in client config
HTTP (remote)	Environment variables on the server
Docker	`-e` flags or orchestrator secrets
CI/CD	Provider secrets (GitHub Actions, etc.)

⚠️ Credentials are NEVER committed to code. The .env file is in .gitignore.

Webhook

Setup

Go to areadocliente.liguelead.app.br
Navigate to Integrações → API Token → Webhook URL
Enter your public HTTPS endpoint URL
Save

A single URL receives notifications for all channels (SMS, SMS Flash, Voice).

Query received webhooks

curl http://localhost:3000/webhooks

Returns:

{
  "total": 42,
  "webhooks": [...]
}

⚠️ CRITICAL: LigueLead does NOT retry failed webhooks. If your endpoint is down, the webhook is lost permanently.

Phone number format

Brazilian phone numbers are accepted in three formats:

Format	Example	Digits
National (recommended)	`11999999999`	11
International	`+5511999999999`	14 chars
DDI without `+`	`5511999999999`	13

SMS limits

Part	Characters	Credits
1st part	up to 160	1 credit
Additional parts	every 152 chars	1 credit each
Maximum total	1,600 chars	~11 credits

🚫 SMS Flash does NOT allow URLs in message content.

Voice call limits

Supported formats: MP3 and WAV (no AAC/M4A)
Max file size: 50 MB (recommended: 5–10 MB)
Billing: Up to 30s = 1 credit; over 30s = 2 credits
Dialing window: 08:00–21:44 (America/Sao_Paulo). Requests after 21:45 are queued until 08:00.

Rate limits

Limit	Value
Requests per minute	600,000
Simultaneous requests	10,000
Recipients per request	10,000

Project structure

liguelead-mcp/
├── src/
│   ├── index.ts          # Entry point — HTTP or stdio
│   ├── config.ts          # Env var validation (Zod) + .env loader
│   ├── lib/
│   │   ├── api-client.ts  # HTTP client for LigueLead API
│   │   ├── validators.ts  # Brazilian phone schemas (Zod)
│   │   └── webhook.ts     # Webhook handler + GET /webhooks
│   └── tools/
│       ├── sms.ts         # Tool: send_sms
│       └── voice.ts       # Tools: voice (list/get/upload/send)
├── skill/                  # Claude Code Skill
│   └── SKILL.md
├── .env.example
├── Dockerfile
├── LICENSE
├── package.json
├── server.json
├── glama.json
└── README.md

Troubleshooting

Problem	Solution
`LIGUELEAD_API_TOKEN is required`	Set up `.env` or environment variables
`401 Unauthorized`	Check api-token and app-id in LigueLead panel
`429 Too Many Requests`	Rate limit exceeded — wait for reset
Upload rejected	Only MP3 and WAV accepted (no AAC/M4A)
Stale build	`rm -rf dist && npm run build`

License

MIT

🇧🇷 Documentação em Português