# io.github.getcroissant/croissant (npm · croissant-mcp-server)

Search and book coworking spaces and conference rooms via Croissant.

- Trust score: 57/100 (low)
- Change this week: +17
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `croissant-mcp-server`: 57/100 (this document), [markdown](https://verifymcp.io/servers/getcroissant-croissant/croissant-mcp-server.md), [page](https://verifymcp.io/servers/getcroissant-croissant/croissant-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `croissant-mcp-server`
- Version: `1.0.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 95), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (94 of 95), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 6/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 157 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 57/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 384 tokens (~76/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 90% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add getcroissant-croissant -- npx -y croissant-mcp-server
```

### Codex

```bash
codex mcp add getcroissant-croissant -- npx -y croissant-mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "getcroissant-croissant": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "croissant-mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add getcroissant-croissant --command npx --arg -y --arg croissant-mcp-server
```

### Hermes

```yaml
mcp_servers:
  getcroissant-croissant:
    command: "npx"
    args: ["-y", "croissant-mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "getcroissant-croissant": {
      "command": "npx",
      "args": [
        "-y",
        "croissant-mcp-server"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 57, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 53, +37)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional regression] License: unverified → fail
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Schema quality: unverified → fair
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass

### 2026-08-01 (score 16, +16)

- [functional improvement] Tool coverage: unverified → 100

### 2026-07-31 (score 0, −22)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 22, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 40)

First indexed and scored.

## MCP tools (5)

### `search_spaces` (~146 tokens)

Search for available workspaces and conference rooms

Input parameters:

- `amenities` (array): Required amenities (e.g. 'whiteboard', 'projector', 'wifi')
- `capacity` (number): Minimum number of seats needed
- `date` (string, required): Date in YYYY-MM-DD format
- `end_time` (string): End time in HH:MM format (24h)
- `location` (string, required): City, neighborhood, or address (e.g. 'Midtown Manhattan')
- `max_price_per_hour` (number): Maximum price per hour in USD
- `space_type` (string)
- `start_time` (string): Start time in HH:MM format (24h)

### `get_space_details` (~39 tokens)

Get detailed information about a specific workspace including photos, reviews, and full pricing

Input parameters:

- `space_id` (string, required): The space ID from search results

### `book_space` (~128 tokens)

Book a workspace or conference room

Input parameters:

- `attendees` (number): Number of attendees
- `booker_email` (string, required): Email for booking confirmation
- `booker_name` (string, required): Name of the person booking
- `date` (string, required): Date in YYYY-MM-DD format
- `end_time` (string, required): End time in HH:MM format (24h)
- `notes` (string): Special requests or notes for the host
- `space_id` (string, required): The space ID to book
- `start_time` (string, required): Start time in HH:MM format (24h)

### `cancel_booking` (~36 tokens)

Cancel an existing booking

Input parameters:

- `booking_id` (string, required): The booking ID to cancel
- `reason` (string): Reason for cancellation

### `list_bookings` (~35 tokens)

List upcoming bookings for a user

Input parameters:

- `email` (string, required): Email of the booker
- `status` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/getcroissant-croissant/croissant-mcp-server#diagnostics

## Score history

- 2026-08-03: 57
- 2026-08-02: 53
- 2026-08-01: 16
- 2026-07-31: 0
- 2026-07-30: 22
- 2026-07-28: 40
- 2026-07-27: 40

## Links

- npm package: https://www.npmjs.com/package/croissant-mcp-server
- Socket report: https://socket.dev/npm/package/croissant-mcp-server
- Changelog RSS feed: https://verifymcp.io/servers/getcroissant-croissant/croissant-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/getcroissant-croissant/croissant-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/getcroissant-croissant/croissant-mcp-server