Automate WhatsApp Business Communications

This skill automates WhatsApp Business operations through Composio's WhatsApp toolkit accessed via Rube MCP (no API keys, just the https://rube.app/mcp endpoint plus OAuth), and explicitly requires a WhatsApp Business API account rather than regular WhatsApp. It covers six workflows: sending free-form text messages (requires E.164-formatted phone numbers and resolving a phone_number_id first); sending Meta-approved template messages (checking template approval status, matching variable count/format, and getting the language code right against the specific approved translation); sending media (images/documents/audio/video via an upload-then-send-by-ID flow, or directly by public HTTPS URL, with size limits varying by type - images 5MB, videos 16MB, documents 100MB); replying to a specific incoming message (quoting it, which requires the original message to still exist and be within the 24-hour window); managing the business profile and creating new templates (subject to Meta review, lowercase-with-underscores naming, category affecting pricing/approval); and sharing contact cards.

Its central operating constraint is the 24-hour messaging window: a conversation opens only when the customer messages first, free-form replies are allowed within 24 hours of their last message, and after that only approved template messages (which can themselves re-open the window) are permitted - business-initiated outreach outside this window always requires a template. Other documented pitfalls: uploaded media IDs are temporary and expire, so they should be used promptly after upload; stickers specifically require WebP format at 512x512 pixels; template review can take up to 24 hours and rejected templates must be fixed and resubmitted; template variables use {{1}}, {{2}} double-curly-brace placeholders; and template messages cost money per conversation, on top of per-number/per-account rate limits.

Use this skill for any WhatsApp Business automation task - sending messages or templates, uploading/sending media, replying within a conversation, managing templates/profile, or sharing contacts - once Rube MCP is connected and the whatsapp toolkit shows an ACTIVE connection via RUBE_MANAGE_CONNECTIONS. Always call RUBE_SEARCH_TOOLS first to fetch current tool schemas.

It is not usable with a regular consumer WhatsApp account - a WhatsApp Business API account is a hard prerequisite - and business-initiated messaging outside the 24-hour window is impossible without an already-approved template, regardless of message content.

Input is a WhatsApp Business action request - a message or template to send, media to upload/send, a reply to a specific message, or a template/profile management task. Output is the tool call result - a sent message/template, an uploaded media ID, a reply confirmation, or template approval status - following the phone-number-resolution and 24-hour-window conventions documented for each workflow.

# Setup: add Rube MCP endpoint
https://rube.app/mcp

Built on Composio's WhatsApp toolkit surfaced through Rube MCP tools (RUBE_SEARCH_TOOLS, RUBE_MANAGE_CONNECTIONS) and the full WHATSAPP_* tool family for messages, templates, media, and business profile management, ultimately backed by Meta's WhatsApp Business API and its template-approval process.

Developers or agents automating WhatsApp Business communication - customer messaging, templated outreach, media sharing, or contact sharing - through an MCP-connected toolkit rather than direct WhatsApp Business API integration.