moltflow

WhatsApp Business automation API for sessions, messaging, groups, labels, and webhooks. Use when: whatsapp, send message, create session, qr code, monitor group, label contacts, webhook.

> **MoltFlow** -- WhatsApp Business automation for teams. Connect, monitor, and automate WhatsApp at scale.
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# MoltFlow Core API

Manage WhatsApp sessions, send messages, monitor groups, organize with labels, and receive real-time events via webhooks.

## Real-World Scenarios

**Dental clinic** — "Send an appointment confirmation to each patient after they book, and a reminder 24 hours before their visit."

**Property manager** — "Monitor my tenant WhatsApp groups for maintenance keywords like 'leak', 'broken', and 'urgent', and flag them instantly."

**E-commerce store** — "When a customer messages my support number, auto-label them as 'New Inquiry' and route the chat to the right team."

**Logistics company** — "Set up a webhook so my dispatch system gets notified the moment a driver sends a delivery confirmation photo."

## When to Use

- "Connect WhatsApp" or "create a session"
- "Send a WhatsApp message" or "send text to contact"
- "Monitor a WhatsApp group" or "list groups"
- "Label contacts" or "sync labels from WhatsApp"
- "Set up a webhook" or "listen for WhatsApp events"
- "Get QR code" or "start session"
- "List chats" or "get conversations"

## Prerequisites

1. **MOLTFLOW_API_KEY** -- Generate from the [MoltFlow Dashboard](https://molt.waiflow.app) under Settings > API Keys
2. All requests require authentication via `Authorization: Bearer <token>` or `X-API-Key: <key>`
3. Base URL: `https://apiv2.waiflow.app/api/v2`

## Required API Key Scopes

| Scope | Access |
|-------|--------|
| `sessions` | `read/manage` |
| `messages` | `read/send` |
| `groups` | `read/manage` |
| `labels` | `read/manage` |
| `webhooks` | `read/manage` |

## Authentication

Every request must include one of:

```
Authorization: Bearer <jwt_token>
```

or

```
X-API-Key: <your_api_key>
```

---

## Sessions

Manage WhatsApp connections. Each session represents one WhatsApp account linked via QR code.

| Method | Endpoint | Description |
|--------|----------|-------------|
| GET | `/sessions` | List all sessions |
| POST | `/sessions` | Create a new session |
| GET | `/sessions/{id}` | Get session details |
| DELETE | `/sessions/{id}` | Delete a session |
| POST | `/sessions/{id}/start` | Start session (triggers QR scan) |
| POST | `/sessions/{id}/stop` | Stop a running session |
| POST | `/sessions/{id}/restart` | Restart a session |
| POST | `/sessions/{id}/logout` | Logout and clear auth state |
| GET | `/sessions/{id}/qr` | Get QR code for pairing |
| GET | `/sessions/{id}/events` | SSE stream of session events |

### Session Status Values

Sessions progress through these states: `stopped` -> `starting` -> `qr_code` -> `working` -> `failed`

### Create Session

**POST** `/sessions`

```json
{
  "name": "My WhatsApp"
}
```

**Response** `201 Created`:

```json
{
  "id": "a1b2c3d4-...",
  "name": "My WhatsApp",
  "status": "stopped",
  "phone_number": null,
  "is_business": false,
  "created_at": "2026-02-11T10:00:00Z"
}
```

### Start Session and Get QR

After creating a session, start it and retrieve the QR code:

1. `POST /sessions/{id}/start` -- begins the WAHA engine
2. Wait for status to become `qr_code` (use SSE events or poll)
3. `GET /sessions/{id}/qr` -- returns the QR code image

### SSE Events

`GET /sessions/{id}/events?token=<jwt>` returns a Server-Sent Events stream. Events include session status changes, incoming messages, and connection updates.

### Session Settings

**PATCH** `/sessions/{id}/settings`

Configure per-session behavior. Settings are stored in the session's `config` JSON field.

```json
// Request
{
  "auto_transcribe": true
}

// Response
{
  "status": "ok",
  "config": {
    "auto_transcribe": true
  }
}
```

| Field | Type | Description |
|-------|------|-------------|
| `auto_transcribe` | boolean | Automatically transcribe incoming voice messages |

---

## Messages

Send and retrieve WhatsApp messages through connected sessions.

| Method | Endpoint | Description |
|--------|----------|-------------|
| POST | `/messages/send` | Send a text message |
| POST | `/messages/send/poll` | Send a poll message |
| POST | `/messages/send/sticker` | Send a sticker |
| POST | `/messages/send/gif` | Send a GIF |
| GET | `/messages/chats/{session_id}` | List all chats for a session |
| GET | `/messages/chat/{session_id}/{chat_id}` | Get chat messages |
| GET | `/messages/{message_id}` | Get a single message |

### Send Text Message

**POST** `/messages/send`

```json
{
  "session_id": "a1b2c3d4-...",
  "chat_id": "5511999999999@c.us",
  "message": "Hello from MoltFlow!"
}
```

**Response** `201 Created`:

```json
{
  "id": "msg-uuid-...",
  "chat_id": "chat-uuid-...",
  "wa_message_id": "ABCD1234",
  "direction": "outbound",
  "message_type": "text",
  "content_preview": "Hello from MoltFlow!",
  "status": "sent",
  "sent_at": "2026-02-11T10:05:00Z",
  "created_at": "2026-02-11T10:05:00Z"
}
```

### Chat ID Format

- Individual contacts: `<phone>@c.us` (e.g., `5511999999999@c.us`)
- Groups: `<group_id>@g.us` (e.g., `120363012345678901@g.us`)

### Send Poll

**POST** `/messages/send/poll`

```json
{
  "session_id": "a1b2c3d4-...",
  "chat_id": "5511999999999@c.us",
  "title": "Preferred meeting time?",
  "options": ["Morning", "Afternoon", "Evening"],
  "allow_multiple": false
}
```

---

## Groups

Monitor WhatsApp groups for keywords, messages, and activity.

| Method | Endpoint | Description |
|--------|----------|-------------|
| GET | `/groups` | List monitored groups |
| GET | `/groups/available/{session_id}` | List available WA groups |
| POST | `/groups` | Add group to monitoring |
| GET | `/groups/{id}` | Get monitored group details |
| PATCH | `/groups/{id}` | Update monitoring settings |
| DELETE | `/groups/{id}` | Remove from monitoring |
| POST | `/groups/create` | Create a new WA group |
| POST | `/groups/{wa_group_id}/participants/add` | Add participants |
| POST | `/groups/{wa_group_id}/participants/remove` | Remove participants |
| POST | `/groups/{wa_group_id}/admin/promote` | Promote to admin |
| POST | `/groups/{wa_group_id}/admin/demote` | Demote from admin |

### Add Group to Monitoring

**POST** `/groups`

```json
{
  "session_id": "a1b2c3d4-...",
  "wa_group_id": "120363012345678901@g.us",
  "monitor_mode": "keywords",
  "monitor_keywords": ["urgent", "support", "help"]
}
```

### Monitor Modes

- `all` -- Capture every message in the group
- `keywords` -- Only capture messages matching specified keywords
- `mentions` -- Only when your account is mentioned
- `first_message` -- Only first messages from new users (default for new groups)
- `ai_analysis` -- AI-powered intent classification and lead scoring (Pro+ only)

### Group Messages (AI Intelligence)

**GET** `/groups/{group_id}/messages`

Retrieve paginated messages from a monitored group, including AI analysis results.

Query parameters: `limit` (default 50, max 100), `offset` (default 0)

**Requires scope:** `groups:read`

```json
{
  "items": [
    {
      "id": "msg-uuid",
      "sender_phone": "+15550123456",
      "sender_name": "John D.",
      "content_preview": "I'm interested in the 3BR property",
      "wa_timestamp": "2026-02-20T14:30:00Z",
      "ai_analysis": {
        "intent": "buying_intent",
        "lead_score": 9,
        "confidence": 0.92,
        "reason": "Explicit interest in a specific property with buying signal"
      }
    }
  ],
  "total": 142,
  "limit": 50,
  "offset": 0,
  "has_more": true
}
```

`ai_analysis` is null when AI hasn't processed the message or AI monitoring is not enabled.

### MCP Tool: moltflow_get_group_messages

Retrieve messages from a monitored WhatsApp group via Claude or any MC