mcpField
C
crayon-c4-mcp

crayon-c4-mcp

Local
github.com/SQUORA-NLDeveloper Tools
Repository

About crayon-c4-mcp

Author, validate and maintain a CRAYON-C4 architecture model — never write an invalid file

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "squora-nl-crayon-c4": {
      "command": "npx",
      "args": [
        "-y",
        "@crayon-c4/mcp"
      ],
      "env": {
        "CRAYON_C4_LICENSE_KEY": "<CRAYON_C4_LICENSE_KEY>"
      }
    }
  }
}
Run commandnpx -y @crayon-c4/mcp
Environment variables to set
CRAYON_C4_LICENSE_KEYSecretOptional. Unlocks repository scanning and AI enrichment. Without it, the free tier still gives the full local authoring loop (create/edit elements, relationships, diagrams, validation).

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npm@crayon-c4/mcp1.50.2

Tools

23

Saved tool list · updated 6d ago

ParameterTypeRequiredDescription
pathstringNoWorkspace-relative path to a model FILE. Omit both arguments to validate the model this session is building, which is usually what you want before `write_model`.
modelanyNoThe model object to validate. Takes precedence over `path`.

Details

The maintainer has not added details yet. Check the README in the repository.

Comments

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New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.