iMessage MCP

A Deno monorepo containing packages for iMessage access on macOS:

• @wyattjoh/imessage - Core library for read-only iMessage database access

• @wyattjoh/imessage-mcp - Model Context Protocol (MCP) server for LLM integration

Features

• Search messages by text content, contact, or date range

• Get recent messages

• List all chats/conversations

• Get all contacts/handles

• Retrieve messages from specific chats

• Search macOS Contacts by name with iMessage handle ID correlation

Related MCP server: Xcode MCP Server

Requirements

• macOS (iMessage is only available on macOS)

• Deno 2.x or later

• Read access to ~/Library/Messages/chat.db

• Read access to ~/Library/Application Support/AddressBook/ (for contacts search)

Packages

@wyattjoh/imessage

Core library for accessing iMessage data:

deno add @wyattjoh/imessage

import { openMessagesDatabase, searchMessages } from "@wyattjoh/imessage";

const db = await openMessagesDatabase();
const results = await searchMessages(db, { query: "hello" });
db.close();

See full documentation

@wyattjoh/imessage-mcp

MCP server for LLM integration:

# Run directly from JSR
deno run --allow-read --allow-env --allow-sys --allow-ffi jsr:@wyattjoh/imessage-mcp

# Or install globally
deno install --global --allow-read --allow-env --allow-sys --allow-ffi -n imessage-mcp jsr:@wyattjoh/imessage-mcp

For Claude Desktop app integration, add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "imessage": {
      "command": "deno",
      "args": [
        "run",
        "--allow-read",
        "--allow-env",
        "--allow-sys",
        "--allow-ffi",
        "jsr:@wyattjoh/imessage-mcp"
      ]
    }
  }
}

Option 2: From Source

1. Clone this repository

2. Install dependencies:

   deno cache src/index.ts

3. Run the server:

   deno run --allow-read --allow-env --allow-sys --allow-ffi src/index.ts
   # Or use the task:
   deno task start

Available Tools

1. search_messages - Search messages with filters

   • query (optional): Text to search for

   • handle (optional): Phone number or email to filter by

   • startDate (optional): ISO datetime string for start date

   • endDate (optional): ISO datetime string for end date

   • limit (optional): Maximum results (1-200, default: 100)

   • offset (optional): Pagination offset (default: 0)

2. get_recent_messages - Get the most recent messages

   • limit (optional): Number of messages (1-100, default: 20)

   • offset (optional): Pagination offset (default: 0)

3. get_chats - List all conversations

   • limit (optional): Number of chats (1-200, default: 50)

   • offset (optional): Pagination offset (default: 0)

4. get_handles - Get all contacts/handles

   • limit (optional): Number of handles (1-200, default: 100)

   • offset (optional): Pagination offset (default: 0)

5. get_messages_from_chat - Get messages from a specific chat

   • chatGuid (required): The chat GUID

   • limit (optional): Number of messages (1-200, default: 50)

   • offset (optional): Pagination offset (default: 0)

6. search_contacts - Search macOS Contacts by name and get phone numbers

   • firstName (required): First name to search for (e.g., 'John')

   • lastName (optional): Last name to search for (e.g., 'Smith'). If omitted, searches across all name fields

   • limit (optional): Maximum results (1-200, default: 50)

   • offset (optional): Pagination offset (default: 0)

   • Returns contact info with phone numbers and email addresses that can be used as handle parameters

   • Searches directly in the macOS AddressBook database for better performance and reliability

Pagination Examples

All tools now support pagination using limit and offset parameters and return pagination metadata:

// Get first 20 recent messages
get_recent_messages({ limit: 20, offset: 0 });

// Get next 20 recent messages (page 2)
get_recent_messages({ limit: 20, offset: 20 });

// Get first 10 chats
get_chats({ limit: 10, offset: 0 });

// Get messages 51-100 from a specific chat
get_messages_from_chat({
  chatGuid: "iMessage;-;+15551234",
  limit: 50,
  offset: 50,
});

// Search with pagination
search_messages({
  query: "meeting",
  limit: 100,
  offset: 200,
});

// Search contacts with pagination
search_contacts({
  firstName: "John",
  lastName: "Smith",
  limit: 50,
  offset: 0,
});

Response Format with Pagination Metadata

All paginated tools now return responses in this format:

{
  "data": [
    // Array of results (messages, chats, handles, etc.)
  ],
  "pagination": {
    "total": 1250, // Total number of results available
    "limit": 100, // Current page size
    "offset": 200, // Current offset
    "hasMore": true, // Whether there are more results to fetch
    "page": 3, // Current page number (1-indexed)
    "totalPages": 13 // Total number of pages
  }
}

This metadata helps you:

• Know the total number of results without fetching all of them

• Determine if there are more pages to fetch (hasMore)

• Calculate which page you're on and how many pages exist

• Build proper pagination UI components

Security Notes

• This server runs with read-only access to the iMessage database

• No messages can be sent or modified

• The server only accesses local data

Development

This is a Deno workspace monorepo. All commands run from the root affect all packages.

# Clone the repository
git clone https://github.com/wyattjoh/imessage-mcp.git
cd imessage-mcp

# Cache dependencies
deno cache packages/*/mod.ts

# Format all code
deno task fmt

# Lint all packages
deno task lint

# Type check all packages
deno task check

# Run tests
deno task test

# Run MCP server locally
cd packages/imessage-mcp
deno run --allow-read --allow-env --allow-sys --allow-ffi mod.ts

# Publish packages (CI/CD)
deno publish

Working on Individual Packages

# Work on @wyattjoh/imessage
cd packages/imessage
deno test --allow-read --allow-env --allow-ffi

# Work on @wyattjoh/imessage-mcp
cd packages/imessage-mcp
deno run --allow-read --allow-env --allow-sys --allow-ffi mod.ts

License

MIT