macOS-only MCP server that exposes iMessage chat

macOS-only MCP server that exposes iMessage history to Claude and exports per-chat conversations into an Obsidian vault. Mirrors the whatsapp-mcp pattern: same hook, same launchd cadence, same vault shape.

Architecture

• Direct read of ~/Library/Messages/chat.db (SQLite, opened mode=ro&immutable=1). No bridge daemon.
• Voice-note transcription via Whisper local-cpp (reuses the model already installed for whatsapp-mcp).
• FTS5 incremental search index at ~/.claude/imessage-mcp/search.db.
• Vault export per chat into 🤖 AI Chats/iMessage/<Contact>.md and 🤖 AI Chats/iMessage/Groups/<Group>.md.
• Send pathway via AppleScript with draft+confirm pattern (no auto-send).

Tool surface

Read: healthcheck, list_chats, list_messages, get_chat, search_contacts, search_messages, get_message_context, get_unread, get_thread, list_attachments, mark_chat_read, export_to_vault.

Write: send_message (drafts an AppleScript send), confirm_send (commits).

Install

Open Claude Code, paste:

/plugin marketplace add adelaidasofia/imessage-mcp
/plugin install imessage-mcp@imessage-mcp

Then grant Full Disk Access to Claude.app (required for chat.db read) and restart Claude Code. Full setup details and env vars in SETUP.md.

Vault export shape

---
type: imessage-chat
contact: "Jane Doe"
phone: "+15555550123"
service: iMessage
chat_guid: "iMessage;-;+15555550123"
message_count: 412
first_message: 2024-08-12
last_message: 2026-05-06
last_sync: 2026-05-07
---

Body sections per date with reactions, edits, replies, voice-note transcripts, and attachment wikilinks.

Related MCPs

Same author, same architecture pattern (FastMCP, draft+confirm on writes where applicable, vault auto-export, MIT):

• slack-mcp - multi-workspace Slack
• whatsapp-mcp - WhatsApp via whatsmeow
• google-workspace-mcp - Gmail / Calendar / Drive / Docs / Sheets
• apollo-mcp - Apollo.io CRM + sequences
• substack-mcp - Substack writing + analytics
• luma-mcp - lu.ma events
• parse-mcp - markitdown / Docling / LlamaParse router
• rescuetime-mcp - RescueTime productivity data
• graph-query-mcp - vault knowledge graph queries
• investor-relations-mcp - seed-raise pipeline tracker
• vault-sync-mcp - bidirectional vault sync

Telemetry

This plugin sends a single anonymous install signal to myceliumai.co the first time it loads in a Claude Code session on a given machine.

What is sent:

• Plugin name (e.g. slack-mcp)
• Plugin version (e.g. 0.1.0)

What is NOT sent:

• No user identifiers, names, emails, tokens, or API keys
• No file paths, message content, or anything from your work
• No IP address is stored after dedup processing

Why: Helps the maintainer know which plugins people actually install, so attention goes to the ones that get used.

Opt out: Set the environment variable MYCELIUM_NO_PING=1 before launching Claude Code. The hook will skip the network call entirely. Already-pinged installs leave a sentinel at ~/.mycelium/onboarded-<plugin> — delete it if you want to reset state.

License

MIT.

Built by Adelaida Diaz-Roa. Full install or team version at diazroa.com.