MCP servers · communication
WhatsApp Business MCP server
Business messaging — send texts, templates, media via WhatsApp Business API. Hosted by 0n3: 6 endpoints your AI can call with your own WhatsApp Business account, from Claude, ChatGPT, Cursor, Claude Code, Codex or Gemini CLI. One sign-in, one key per AI, a receipt for every call.
6 endpoints3 categoriesauth: access_tokenhosted
What your AI can do with WhatsApp Business
Send message · Send messages via WhatsApp4
Send a text message
POST /{phoneNumberId}/messagesSend a template message
POST /{phoneNumberId}/messagesSend a media message
POST /{phoneNumberId}/messagesList templates
GET /{businessId}/message_templatesMedia · Upload and retrieve media2
Upload a media
POST /{phoneNumberId}/mediaGet a media url
GET /{mediaId}Templates · Manage message templates0
Manage message templates
Install in three steps
- Create a free account at 0n3.app and connect WhatsApp Business: paste a key or sign in through a door. It lands in your vault, encrypted.
- Open 0n3.app/install, pick your AI. A key is made for that AI alone; copy the line it gives you.
- Ask your AI: whoami. It answers with your connected services. Then ask it to send a text message in WhatsApp Business.
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"
Connect WhatsApp Business to
Claude Code + WhatsApp BusinessMCP server + skillClaude (desktop & claude.ai) + WhatsApp BusinessconnectorChatGPT + WhatsApp Businessconnector · GPT actionCodex CLI + WhatsApp BusinessMCP serverGemini CLI + WhatsApp BusinessMCP serverCursor + WhatsApp BusinessMCP serverVS Code (Copilot) + WhatsApp BusinessMCP serverWindsurf + WhatsApp BusinessMCP server
More communication MCP servers
Questions
What can an AI do with the WhatsApp Business MCP server?
6 things: send message, media, templates. Every call runs with your own WhatsApp Business connection and lands on a receipt.
Do I need to run anything on my computer?
No. 0n3 is hosted. Connect WhatsApp Business once, install 0n3 into your AI with one line, done.
Where does my WhatsApp Business key go?
Into your 0n3 vault, encrypted, one record per connection. The AI never sees it.