Qweaver WhatsApp MCP
A hosted Model Context Protocol server for a WhatsApp number you pair yourself. Connect once by scanning a QR, then Claude, ChatGPT, Cursor or any MCP client can read your chats, search history and send messages. Unlike servers built on Meta's Business API, it reads your normal WhatsApp conversations; unlike the open-source alternatives, there is nothing to install and no bridge to keep running.
How to authenticate
5 stops to a working call
- 1Create a free workspace at https://app.qweaver.com/signup.
- 2Pair your WhatsApp number: Settings > Connections > WhatsApp lines, then scan the QR with your phone. The number stays yours.
- 3Get your agent key (qwa_...) from Settings > Workspaces, or as JSON from /api/admin/user-kit?format=json.
- 4Point your MCP client at https://app.qweaver.com/api/mcp/whatsapp with header Authorization: Bearer qwa_YOUR_KEY.
- 5Streamable HTTP transport, stateless: no session to manage, no local install.
Example request
curl https://app.qweaver.com/api/mcp/whatsapp -H "Authorization: Bearer qwa_YOUR_KEY" -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_session_status","arguments":{}}}'Example response
{"jsonrpc":"2.0","id":1,"result":{"content":[{"type":"text","text":"{\"connected\":true,\"phone\":\"65XXXXXXXX\",\"send_budget\":{\"remaining_today\":60}}"}]}}Notes for AI agents
Seven tools: get_session_status, list_chats, search_messages, list_messages, search_contacts, send_message, mark_read. Deliberately small: servers exposing 165-280 tools measurably degrade a model's tool selection. get_session_status reports connection health AND the remaining send budget, so an agent can pace itself instead of discovering a limit by hitting it. send_message reaches a real person from a real number: confirm recipient and wording with your human first. This uses the WhatsApp Web method, not Meta's official Business API, so it can read personal chats but no provider on this method can guarantee a number is never restricted. Use it for your own conversations and replies, never cold outreach or bulk campaigns.
Machine-readable version: /api/apis/qweaver-whatsapp-mcp
On the same line
Bird (MessageBird) API
Bird
Omnichannel messaging API (SMS, WhatsApp, email, voice) from the company formerly known as MessageBird, with SG SMS routes and sender ID support. Alternative CPaaS to Twilio with channel-agnostic message objects.
Telegram Bot API
Telegram
Free HTTP API for building Telegram bots, one of the most-used notification and community channels among Singapore developers, businesses and even government services. Instant setup with a single token from BotFather.
Twilio API (SMS and Voice, SG numbers)
Twilio
Programmable SMS, voice, WhatsApp and verification APIs with Singapore phone numbers and local compliance handling (SGNIC registration for SMS sender IDs). The default CPaaS for SG OTP and notification flows.
WhatsApp Business Cloud API
Meta
Meta-hosted API for sending and receiving WhatsApp messages at scale, the dominant business messaging channel in Singapore. Supports templates, interactive messages, media and webhooks.