Send WhatsApp messages
WhatsApp is a Sim integration in the Communication category. Sim is the AI workspace where teams build and deploy AI agents. Sim's WhatsApp integration provides 8 tools and 1 trigger that AI agents can use inside Sim's visual workflow builder. WhatsApp connects with an API key. Free to start at sim.ai.
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Integrate WhatsApp into the workflow. Send text, template, media, and interactive messages, react to messages, and mark messages as read through the WhatsApp Cloud API. Free-form messages only reach a recipient within 24 hours of their last message to you — outside that window WhatsApp requires a pre-approved template.
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Open your workspace, drag a WhatsApp block onto the workflow builder, and paste in your WhatsApp API key.
Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your WhatsApp automation is live.
Add a WhatsApp trigger to a Sim agent and it starts a run whenever one of these WhatsApp events occurs.
Trigger workflow from WhatsApp incoming messages and message status webhooks
Ready-to-use templates featuring WhatsApp. Click any to build it instantly.
8 WhatsApp tools available to Sim agents.
Send a free-form text message through the WhatsApp Cloud API. Only works inside the 24-hour customer service window — use Send Template to start a conversation.
Send a pre-approved WhatsApp template message. Required to start a conversation or to message a user outside the 24-hour customer service window.
Send an image, document, video, audio, or sticker message. Accepts an uploaded file, a media ID, or a public link.
Send an interactive WhatsApp message with reply buttons or a selectable list.
React to a WhatsApp message with an emoji. Send an empty emoji to remove an existing reaction.
Mark a received WhatsApp message as read so the sender sees blue checkmarks, optionally showing a typing indicator.
Upload a file to WhatsApp and get a media ID for sending. Uploaded media is retained for 30 days and can back many sends.
Download media a customer sent you. Takes the media ID from an incoming WhatsApp message and stores the file in the workflow.
Sim's WhatsApp integration adds 8 tools and 1 trigger to the AI agents you build in Sim's visual workflow builder. Send WhatsApp messages.