WhatsApp MCP Extended

An extended Model Context Protocol (MCP) server for WhatsApp with 41 tools - advanced messaging, group management, webhooks, presence, and more.

Built on AdamRussak/whatsapp-mcp (webhooks, containers) which forked lharries/whatsapp-mcp (original). Extended with reactions, message editing, polls, group management, presence, newsletters, and more.

What's New (vs Original)

Feature	Original	Extended
MCP Tools	12	41
Reactions	-	✅
Edit/Delete Messages	-	✅
Group Management	-	✅
Polls	-	✅
History Sync	-	✅
Presence/Online Status	-	✅
Newsletters	-	✅
Webhooks	-	✅
Custom Nicknames	-	✅

Architecture

┌─────────────────────┐     ┌─────────────────────┐     ┌─────────────────────┐
│   whatsapp-bridge   │     │   whatsapp-mcp      │     │    webhook-ui       │
│   (Go + whatsmeow)  │◄────│   (Python + MCP)    │     │   (HTML/JS SPA)     │
│   Port: 8080        │     │   Ports: 8081,8082  │     │   Port: 8089        │
└─────────────────────┘     └─────────────────────┘     └─────────────────────┘
         │                           │
         ▼                           ▼
    ┌─────────────────────────────────────┐
    │           SQLite (store/)           │
    │  messages.db │ whatsapp.db          │
    └─────────────────────────────────────┘

Quick Start

Docker (Recommended)

git clone https://github.com/felixisaac/whatsapp-mcp-extended
cd whatsapp-mcp-extended

docker network create n8n_n8n_traefik_network
docker-compose up -d

# Scan QR code to authenticate
docker-compose logs -f whatsapp-bridge

Claude Desktop / Cursor Integration

Add to your MCP config (claude_desktop_config.json or Cursor settings):

{
  "mcpServers": {
    "whatsapp": {
      "command": "uv",
      "args": ["run", "--directory", "/path/to/whatsapp-mcp-extended/whatsapp-mcp-server", "python", "main.py"]
    }
  }
}

MCP Tools (41 Total)

Messaging

Tool	Description
`send_message`	Send text message
`send_file`	Send image/video/document
`send_audio_message`	Send voice message
`download_media`	Download received media
`send_reaction`	React to message with emoji
`edit_message`	Edit sent message
`delete_message`	Delete/revoke message
`mark_read`	Mark messages as read (blue ticks)

Chats & Messages

Tool	Description
`list_chats`	List all chats
`get_chat`	Get chat by JID
`list_messages`	Search messages with filters
`get_message_context`	Get messages around a specific message
`get_direct_chat_by_contact`	Find DM with contact
`get_contact_chats`	All chats involving contact
`get_last_interaction`	Most recent message with contact
`request_history`	Request older message history

Contacts

Tool	Description
`search_contacts`	Search by name/phone
`list_all_contacts`	List all contacts
`get_contact_details`	Full contact info
`set_nickname`	Set custom nickname
`get_nickname`	Get custom nickname
`remove_nickname`	Remove nickname
`list_nicknames`	List all nicknames

Groups

Tool	Description
`get_group_info`	Group metadata & participants
`create_group`	Create new group
`add_group_members`	Add members
`remove_group_members`	Remove members
`promote_to_admin`	Promote to admin
`demote_admin`	Demote admin
`leave_group`	Leave group
`update_group`	Update name/topic
`create_poll`	Create poll in chat

Presence & Profile

Tool	Description
`set_presence`	Set online/offline status
`subscribe_presence`	Subscribe to contact's presence
`get_profile_picture`	Get profile picture URL
`get_blocklist`	List blocked users
`block_user`	Block user
`unblock_user`	Unblock user

Newsletters (Channels)

Tool	Description
`follow_newsletter`	Follow channel
`unfollow_newsletter`	Unfollow channel
`create_newsletter`	Create new channel

Webhook System

Real-time HTTP webhooks for incoming messages with:

Triggers: all, chat_jid, sender, keyword, media_type
Matching: exact, contains, regex
Security: HMAC-SHA256 signatures
Retry: Exponential backoff

Access webhook UI at http://localhost:8089

Development

Manual Setup

# Bridge (Go 1.24+)
cd whatsapp-bridge && go run main.go

# MCP Server (Python 3.11+)
cd whatsapp-mcp-server && uv sync && uv run python main.py

# Webhook UI
cd whatsapp-webhook-ui && python3 -m http.server 8089

Pre-build Checks

cd whatsapp-mcp-server
uv run python check.py  # Catches errors before docker build

Updating whatsmeow

When you see Client outdated (405) errors:

cd whatsapp-bridge
go get -u go.mau.fi/whatsmeow@latest
go mod tidy
docker-compose build whatsapp-bridge
docker-compose up -d whatsapp-bridge

Ports

Service	Port	Description
Bridge API	8080 (→8180)	REST API
MCP Server	8081	SSE transport
Gradio UI	8082	Web testing UI
Webhook UI	8089	Webhook management

Troubleshooting

Messages Not Delivering

If API returns success but messages show single checkmark:

docker-compose restart whatsapp-bridge
docker-compose logs --tail=10 whatsapp-bridge
# Should see: "✓ Connected to WhatsApp!"

QR Code Issues

docker-compose logs -f whatsapp-bridge
# Scan QR with WhatsApp mobile app

Credits

Fork chain:

lharries/whatsapp-mcp - Original MCP server (12 tools)
AdamRussak/whatsapp-mcp - Added webhooks, container split, webhook UI
This repo - Added reactions, edit/delete, groups, polls, presence, newsletters (41 tools)

Libraries:

whatsmeow - Go WhatsApp Web API
FastMCP - Python MCP SDK

License

MIT License - see LICENSE file.

whatsapp-mcp-extended