cloudcraft-mcp

Model Context Protocol (MCP) server for Cloudcraft.co — list, read, export, and build cloud-architecture blueprints from Claude Desktop and other MCP clients.

Features

Nine tools exposed to the MCP host:

Requirements

• Python 3.10+

• uv (brew install uv)

• Cloudcraft API key — generate one at https://app.cloudcraft.co/ → User settings → API keys

Install

Clone the repo and let uv resolve dependencies on first run — no explicit install step required.

git clone https://github.com/hypark5540/cloudcraft-mcp.git
cd cloudcraft-mcp
export CLOUDCRAFT_API_KEY='your-key-here'
uv run cloudcraft-mcp   # smoke test — Ctrl+C to exit

Claude Desktop integration

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or the equivalent on your platform:

{
  "mcpServers": {
    "cloudcraft": {
      "command": "uv",
      "args": [
        "--directory",
        "/absolute/path/to/cloudcraft-mcp",
        "run",
        "cloudcraft-mcp"
      ],
      "env": {
        "CLOUDCRAFT_API_KEY": "your-key-here"
      }
    }
  }
}

Restart Claude Desktop. The Developer tab should show cloudcraft as connected.

Environment variables

Usage examples (in Claude)

Once the server is connected, ask Claude things like:

"List my Cloudcraft blueprints and summarize what each represents."

"Export blueprint f0086b32-... as PNG and save it to my Desktop."

"Take the architecture I just designed and create a new Cloudcraft blueprint called 'Prod 2026'."

"Snapshot the EC2 instances in ap-northeast-2 for my connected AWS account."

Blueprint payload shape

create_blueprint / update_blueprint accept the full Cloudcraft data object. A minimal payload:

{
  "grid": "infinite",
  "projection": "isometric",
  "theme": {"base": "light"},
  "version": 6,
  "nodes": [
    {"id": "...", "type": "ec2", "mapPos": [3, 3], "region": "ap-northeast-2",
     "instanceType": "m7g", "instanceSize": "large", "platform": "linux"},
    {"id": "...", "type": "s3",  "mapPos": [1, 8], "region": "ap-northeast-2",
     "volumeType": "Standard", "dataGb": 100}
  ],
  "edges": [
    {"from": "...ec2-id...", "to": "...s3-id...", "type": "edge",
     "width": 2, "dashed": false, "endCap": "arrow"}
  ],
  "groups": [], "surfaces": [], "text": [], "icons": [],
  "connectors": [], "images": [], "disabledLayers": [],
  "shareDocs": false
}

Refer to Cloudcraft's API docs for the full node-type catalog and service-specific fields.

Development

uv sync --extra dev
uv run pytest            # unit tests (no network)
uv run ruff check .      # lint
uv run mypy src          # type check

Tests mock the HTTP layer with respx so no API key is required.

Coverage

CI uploads coverage.xml from the Python 3.12 matrix cell to Codecov. The project gate is 80% or higher — a PR that drops overall or patch coverage by more than 1 percentage point below that line fails the Codecov check (codecov.yml).

Run the same report locally:

uv run pytest --cov=cloudcraft_mcp --cov-report=term-missing --cov-report=xml

Project layout

cloudcraft-mcp/
├── src/cloudcraft_mcp/
│   ├── __init__.py
│   ├── __main__.py         # python -m cloudcraft_mcp
│   ├── server.py           # MCP tool definitions (FastMCP)
│   ├── client.py           # CloudcraftClient — async httpx wrapper
│   ├── types.py            # TypedDicts for blueprint payloads
│   └── py.typed
├── tests/
│   └── test_client.py
├── server.py               # back-compat shim -> cloudcraft_mcp.server:main
├── pyproject.toml
├── LICENSE
└── README.md

Design notes

• Transport / logic split. client.py is a plain async HTTP client you can import from scripts or CLI tools without pulling the MCP runtime. server.py only owns the MCP tool surface.

• Bearer-token auth. Cloudcraft's API expects Authorization: Bearer <key> (not Apikey). The client sets this automatically.

• No secrets in process args. The API key is read from CLOUDCRAFT_API_KEY; never pass it on the command line.

• Error surface. Non-2xx responses raise CloudcraftError with status and body preserved, re-wrapped as RuntimeError at the MCP boundary so Claude sees a readable message.

Security

• API keys grant full read / write over your Cloudcraft account. Treat them as secrets and rotate regularly.

• delete_blueprint is irreversible — when asking Claude to delete, be explicit about the target id.

• For read-heavy setups, create a dedicated Cloudcraft user with read-only scope (if/when Cloudcraft adds scoped keys) and use that key for MCP.

Contributing

Issues and PRs welcome at https://github.com/hypark5540/cloudcraft-mcp. Please run ruff, mypy, and pytest before submitting.

License

MIT — see LICENSE.

Related

• Cloudcraft API documentation

• Model Context Protocol specification

• awslabs/mcp — AWS's collection of MCP servers

• modelcontextprotocol/servers — reference MCP server implementations