Communications APIs
SMS, WhatsApp, email, and messaging APIs used by Singapore businesses.
5 APIs in this category
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.
Qweaver WhatsApp MCP
Digital 9 Labs (Singapore)
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.
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.