# MCP Integration

TREK includes a built-in [Model Context Protocol](https://modelcontextprotocol.io/) (MCP) server that lets AI assistants — such as Claude Desktop, Cursor, or any MCP-compatible client — read and modify your trip data through a structured API.

> **Note:** MCP is an addon that must be enabled by your TREK administrator before it becomes available.

## Table of Contents

- [Setup](#setup)
- [Limitations & Important Notes](#limitations--important-notes)
- [Resources (read-only)](#resources-read-only)
- [Tools (read-write)](#tools-read-write)
- [Screenshots](#screenshots)

---

## Setup

### 1. Enable the MCP addon (admin)

An administrator must first enable the MCP addon from the **Admin Panel > Addons** page. Until enabled, the `/mcp` endpoint returns `403 Forbidden` and the MCP section does not appear in user settings.

### 2. Create an API token

Once MCP is enabled, go to **Settings > MCP Configuration** and create an API token:

1. Click **Create New Token**
2. Give it a descriptive name (e.g. "Claude Desktop", "Work laptop")
3. **Copy the token immediately** — it is shown only once and cannot be recovered

Each user can create up to **10 tokens**.

### 3. Configure your MCP client

The Settings page shows a ready-to-copy client configuration snippet. For **Claude Desktop**, add the following to your `claude_desktop_config.json`:

```json
{
  "mcpServers": {
    "trek": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://your-trek-instance.com/mcp",
        "--header",
        "Authorization: Bearer trek_your_token_here"
      ]
    }
  }
}
```

> The path to `npx` may need to be adjusted for your system (e.g. `C:\PROGRA~1\nodejs\npx.cmd` on Windows).

---

## Limitations & Important Notes

| Limitation | Details |
|---|---|
| **Admin activation required** | The MCP addon must be enabled by an admin before any user can access it. |
| **Per-user scoping** | Each MCP session is scoped to the authenticated user. You can only access trips you own or are a member of. |
| **No image uploads** | Cover images cannot be set through MCP. Use the web UI to upload trip covers. |
| **Reservations are created as pending** | When the AI creates a reservation, it starts with `pending` status. You must confirm it manually or ask the AI to set the status to `confirmed`. |
| **Demo mode restrictions** | If TREK is running in demo mode, all write operations through MCP are blocked. |
| **Rate limiting** | 60 requests per minute per user. Exceeding this returns a `429` error. |
| **Session limits** | Maximum 5 concurrent MCP sessions per user. Sessions expire after 1 hour of inactivity. |
| **Token limits** | Maximum 10 API tokens per user. |
| **Token revocation** | Deleting a token immediately terminates all active MCP sessions for that user. |
| **Real-time sync** | Changes made through MCP are broadcast to all connected clients in real-time via WebSocket, just like changes made through the web UI. |

---

## Resources (read-only)

Resources provide read-only access to your TREK data. MCP clients can read these to understand the current state before making changes.

| Resource | URI | Description |
|---|---|---|
| Trips | `trek://trips` | All trips you own or are a member of |
| Trip Detail | `trek://trips/{tripId}` | Single trip with metadata and member count |
| Days | `trek://trips/{tripId}/days` | Days of a trip with their assigned places |
| Places | `trek://trips/{tripId}/places` | All places/POIs saved in a trip |
| Budget | `trek://trips/{tripId}/budget` | Budget and expense items |
| Packing | `trek://trips/{tripId}/packing` | Packing checklist |
| Reservations | `trek://trips/{tripId}/reservations` | Flights, hotels, restaurants, etc. |
| Day Notes | `trek://trips/{tripId}/days/{dayId}/notes` | Notes for a specific day |
| Accommodations | `trek://trips/{tripId}/accommodations` | Hotels/rentals with check-in/out details |
| Members | `trek://trips/{tripId}/members` | Owner and collaborators |
| Collab Notes | `trek://trips/{tripId}/collab-notes` | Shared collaborative notes |
| Categories | `trek://categories` | Available place categories (for use when creating places) |
| Bucket List | `trek://bucket-list` | Your personal travel bucket list |
| Visited Countries | `trek://visited-countries` | Countries marked as visited in Atlas |

---

## Tools (read-write)

TREK exposes **34 tools** organized by feature area. Use `get_trip_summary` as a starting point — it returns everything about a trip in a single call.

### Trip Summary

| Tool | Description |
|---|---|
| `get_trip_summary` | Full denormalized snapshot of a trip: metadata, members, days with assignments and notes, accommodations, budget totals, packing stats, reservations, and collab notes. Use this as your context loader. |

### Trips

| Tool | Description |
|---|---|
| `list_trips` | List all trips you own or are a member of. Supports `include_archived` flag. |
| `create_trip` | Create a new trip with title, dates, currency. Days are auto-generated from the date range. |
| `update_trip` | Update a trip's title, description, dates, or currency. |
| `delete_trip` | Delete a trip. **Owner only.** |

### Places

| Tool | Description |
|---|---|
| `create_place` | Add a place/POI with name, coordinates, address, category, notes, website, phone. |
| `update_place` | Update any field of an existing place. |
| `delete_place` | Remove a place from a trip. |

### Day Planning

| Tool | Description |
|---|---|
| `assign_place_to_day` | Pin a place to a specific day in the itinerary. |
| `unassign_place` | Remove a place assignment from a day. |
| `reorder_day_assignments` | Reorder places within a day by providing assignment IDs in the desired order. |
| `update_assignment_time` | Set start/end times for a place assignment (e.g. "09:00" – "11:30"). |
| `update_day` | Set or clear a day's title (e.g. "Arrival in Paris", "Free day"). |

### Reservations

| Tool | Description |
|---|---|
| `create_reservation` | Create a pending reservation. Supports flights, hotels, restaurants, trains, cars, cruises, events, tours, activities, and other types. Hotels can be linked to places and check-in/out days. |
| `update_reservation` | Update any field including status (`pending` / `confirmed` / `cancelled`). |
| `delete_reservation` | Delete a reservation and its linked accommodation record if applicable. |
| `link_hotel_accommodation` | Set or update a hotel reservation's check-in/out day links and associated place. |

### Budget

| Tool | Description |
|---|---|
| `create_budget_item` | Add an expense with name, category, and price. |
| `update_budget_item` | Update an expense's details, split (persons/days), or notes. |
| `delete_budget_item` | Remove a budget item. |

### Packing

| Tool | Description |
|---|---|
| `create_packing_item` | Add an item to the packing checklist with optional category. |
| `update_packing_item` | Rename an item or change its category. |
| `toggle_packing_item` | Check or uncheck a packing item. |
| `delete_packing_item` | Remove a packing item. |

### Day Notes

| Tool | Description |
|---|---|
| `create_day_note` | Add a note to a specific day with optional time label and emoji icon. |
| `update_day_note` | Edit a day note's text, time, or icon. |
| `delete_day_note` | Remove a note from a day. |

### Collab Notes

| Tool | Description |
|---|---|
| `create_collab_note` | Create a shared note visible to all trip members. Supports title, content, category, and color. |
| `update_collab_note` | Edit a collab note's content, category, color, or pin status. |
| `delete_collab_note` | Delete a collab note and its associated files. |

### Bucket List

| Tool | Description |
|---|---|
| `create_bucket_list_item` | Add a destination to your personal bucket list with optional coordinates and country code. |
| `delete_bucket_list_item` | Remove an item from your bucket list. |

### Atlas

| Tool | Description |
|---|---|
| `mark_country_visited` | Mark a country as visited using its ISO 3166-1 alpha-2 code (e.g. "FR", "JP"). |
| `unmark_country_visited` | Remove a country from your visited list. |

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## Screenshots

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