Observed arrival · 2026-08-29
WhatsMCP Puts WhatsApp on a SIP Trunk
Credibility concern recorded. The source reference remains available for verification and correction.
An unofficial infrastructure layer that connects regular WhatsApp numbers to PBX systems and AI agents through SIP and MCP.
Field notes
The service describes a dual integration surface: SIP for routing WhatsApp voice into Asterisk, FreeSWITCH, or cloud PBXs, and MCP tools for agent-controlled messaging and account administration. Its device model distinguishes standalone primary accounts using direct TCP from companion accounts paired through WebSocket. The page specifies Opus-to-G.711 transcoding, Prometheus metrics, webhook events, and a stated beta limit of 50 concurrent trunks. It also warns that WhatsApp may block numbers because the integration is unofficial and outside the platform's terms.
Observed signals
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Editorial observations of this landing page, not a rating.
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