MCP Whatsapp

Unclaimed

by Sealjay

Single-binary Go MCP server that wraps whatsmeow to expose a personal WhatsApp account as 42 MCP tools (messaging, groups, polls, media, privacy).

mcpwhatsappclaudegogolangllmmodel-context-protocolsqlitewhatsmeowmcp-server

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Tools (40)

block_contact

Block a contact by phone number or JID

create_group

Create a group with a name and initial participants

delete_message

Revoke (delete for everyone) a message

download_media

Download persisted media to a local path

edit_message

Edit a previously-sent message

get_blocklist

Return the current blocklist

get_chat

Chat metadata by JID

get_group_info

Full group metadata (participants, settings, invite config)

get_group_invite_link

Get the invite link; reset: true revokes the previous link first

get_message_context

Before/after window around a specific message

get_poll_results

Return the tally for a poll we have cached (includes 0-vote options)

get_privacy_settings

Current privacy settings as JSON

is_on_whatsapp

Batch-check which phone numbers are registered on WhatsApp

join_group_with_link

Join a group via a chat.whatsapp.com URL or bare invite code

leave_group

Leave a group

list_chats

List chats with last-message preview; sort by activity or name

list_groups

List all groups the user is a member of

list_messages

Query + filter messages; returns formatted text with context windows

mark_chat_read

Ack the most recent incoming messages in a chat to clear the unread badge

mark_read

Mark specific message IDs as read

request_sync

Ask WhatsApp to backfill history for a chat

search_contacts

Substring search across cached contact names and phone numbers

send_audio_message

Send a voice note (auto-converts via ffmpeg if not .ogg Opus); supports viewonce: bool

send_contact_card

Send a contact card; synthesises a vCard 3.0 from name + phone, or pass a raw vcard to skip synthesis

send_file

Send image/video/document/raw audio with optional caption; viewonce: bool marks image/video/audio submessages as view-once (ignored for documents)

send_message

Send a text message to a phone number or JID

send_poll

Send a poll with a question and 2+ options; selectablecount controls how many options a voter may pick. Generates the 32-byte MessageSecret required for votes to decrypt

send_poll_vote

Cast a vote on a previously-seen poll; options must match option names exactly

send_presence

Set own availability (available or unavailable) — distinct from per-chat sendtyping

send_reaction

React to a message (empty emoji clears an existing reaction)

send_reply

Text reply that quotes a prior message

send_typing

Set per-chat composing / recording presence

set_group_announce

Toggle announce-only mode (only admins can send)

set_group_locked

Toggle locked mode (only admins can edit group metadata)

set_group_name

Change the group subject

set_group_topic

Change the group description; empty string clears it

set_privacy_setting

Change one privacy setting by name + value (strict enum validation; invalid combinations are rejected)

set_status_message

Update the profile "About" text; empty string clears it

unblock_contact

Unblock a contact

update_group_participants

Add / remove / promote / demote participants (action: add\