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

npm version License: MIT

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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

1. Go to areadocliente.liguelead.app.br
2. Navigate to Integrações → API Token
3. 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

1. Connect the Git repository
2. Set environment variables: LIGUELEAD_API_TOKEN, LIGUELEAD_APP_ID
3. Build command: npm install && npm run build
4. 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

1. Go to areadocliente.liguelead.app.br
2. Navigate to Integrações → API Token → Webhook URL
3. Enter your public HTTPS endpoint URL
4. 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

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🇧🇷 Documentação em Português

LigueLead MCP Server

MCP Server para a API da LigueLead — SMS, SMS Flash e Campanhas de Voz no Brasil.

Permite que Claude, Cursor, Windsurf e qualquer agente de IA compatível com MCP enviem comunicações reais — sem código, sem setup complexo.

CPaaS Brasileiro · Preço em BRL · Pagamento via PIX · Suporte em PT-BR

Início rápido

Opção 1: npx (recomendado)

Sem instalação — basta adicionar à config do seu cliente MCP:

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

Opção 2: Clone & build

git clone https://github.com/liguelead/mcp.git
cd mcp
npm install
cp .env.example .env  # Edite com suas credenciais
npm run build
npm start

Obtendo suas credenciais

1. Acesse areadocliente.liguelead.app.br
2. Vá em Integrações → API Token
3. Crie um App e copie o API Token e App ID

Tools disponíveis

Tool	Descrição
send_sms	Envia campanha de SMS ou SMS Flash para números brasileiros
list_voice_uploads	Lista todos os áudios enviados
get_voice_upload	Detalhes de um áudio específico
upload_voice_audio	Upload de áudio MP3/WAV para campanhas de voz
send_voice_message	Dispara campanha de voz para lista de telefones

Configuração por cliente MCP

Claude Desktop (stdio)

Edite claude_desktop_config.json:

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

Claude Code

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

Formato de números de telefone

Formato	Exemplo	Dígitos
Nacional (recomendado)	11999999999	11
Internacional	+5511999999999	14 chars
DDI sem +	5511999999999	13

Limites de SMS

Parte	Caracteres	Créditos
1ª parte	até 160	1 crédito
Partes adicionais	a cada 152 chars	1 crédito cada
Máximo total	1.600 chars	~11 créditos

🚫 SMS Flash NÃO permite URLs no conteúdo da mensagem.

Limites de voz

• Formatos suportados: MP3 e WAV (AAC e M4A não são suportados)
• Tamanho máximo: 50 MB (recomendado: 5–10 MB)
• Cobrança: Até 30s = 1 crédito; acima de 30s = 2 créditos
• Janela de discagem: 08h00–21h44 (America/Sao_Paulo). Requests após 21h45 ficam na fila até as 08h00.

Webhook

1. Acesse areadocliente.liguelead.app.br
2. Vá em Integrações → API Token → Webhook URL
3. Insira a URL HTTPS do seu endpoint
4. Salve

Uma única URL recebe notificações de todos os canais (SMS, SMS Flash, Voz).

⚠️ CRÍTICO: LigueLead NÃO faz retry. Se o endpoint falhar, o webhook é perdido permanentemente.