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UnderChat MCP by usefulapi MCP

v1.2.1 changelog · 4

io.usefulapi/underchat

List WhatsApp chats, contacts and sectors; send, transfer and label chats in UnderChat.

transport:streamable-http tools:21

Target client

run in your project directory

claude mcp add --transport http underchat https://underchat.usefulapi.io/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

underchat_list_chats

underchat list chats

underchat_search_chats

underchat search chats

underchat_get_chat_messages

underchat get chat messages

underchat_search_chat_messages

underchat search chat messages

underchat_get_chat_details

underchat get chat details

underchat_get_unread_summary

underchat get unread summary

underchat_list_channels

underchat list channels

underchat_list_workers

underchat list workers

underchat_list_contacts

underchat list contacts

underchat_get_contact

underchat get contact

underchat_find_contact_by_phone

underchat find contact by phone

underchat_list_label_templates

underchat list label templates

underchat_list_sectors

underchat list sectors

underchat_list_users

underchat list users

underchat_get_user

underchat get user

underchat_send_text_message

underchat send text message

underchat_update_chat_status

underchat update chat status

underchat_transfer_chat

underchat transfer chat

underchat_set_chat_labels

underchat set chat labels

underchat_create_contact

underchat create contact

underchat_update_contact

underchat update contact

All 21 tools, one page each

1 prompt you invoke yourself

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.