Schema | diagram-mcp

diagram-mcp

Describes the environment variables required to run the server.

Name	Required	Description	Default
`DIAGRAM_MCP_OUTPUT_DIR`	No	Directory where rendered diagrams are saved. Defaults to ~/Documents/diagram-renders.	~/Documents/diagram-renders
`DIAGRAM_MCP_ALLOW_ANY_OUTPUT_PATH`	No	When true, allows explicit outputPath values outside the output directory or working directory.	false

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{ "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
render_diagramA	Render diagram-as-code text to a PNG file and return the path. Runs locally with no browser and no network. Returns an error listing the offending line numbers if the code does not parse.
validate_diagramA	Parse diagram code and report errors and warnings with line numbers, without writing any file.
preview_diagramA	Draw the diagram as text art so it can be shown directly in the conversation. Writes no file. Use render_diagram when a PNG is needed.
diagram_syntaxA	Return the full diagram-as-code language reference, with shapes, options and a worked example.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/JVmano/diagram-mcp'

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