ExcaliDash MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| MCP_PORT | No | Host loopback port for Docker Compose. | 9003 |
| MCP_HTTP_HOST | No | Internal HTTP bind address for HTTP mode. | 0.0.0.0 |
| MCP_HTTP_PORT | No | Internal HTTP port for HTTP mode. | 8080 |
| EXCALIDASH_URL | Yes | ExcaliDash public or internal URL. The /api can be omitted. | |
| EXCALIDASH_TOKEN | No | Alternate API key alias for compatibility with previous settings. | |
| MCP_MAX_SESSIONS | No | Maximum number of concurrent MCP sessions. Returns 429 if exceeded. | 64 |
| EXCALIDASH_API_KEY | Yes | Account API key with Read drawings and Write drawings scopes. | |
| MCP_MAX_BODY_BYTES | No | Maximum HTTP request body size. | 10485760 |
| MCP_SESSION_IDLE_MS | No | Idle session cleanup timeout in milliseconds. | 1800000 |
| EXCALIDASH_DRAWING_ID | No | Default drawing ID to select at startup. |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| list_drawingsA | List ExcaliDash drawings available to the account API key. Use this before selecting a drawing. |
| select_drawingA | Select an Excalidraw drawing as the default target for subsequent tools in this MCP process. |
| get_selected_drawingA | Return the drawing currently selected by this MCP process. |
| create_drawingB | Create a new empty Excalidraw drawing and optionally select it as the default target. |
| get_drawing_summaryA | Read a compact structural summary of a drawing. Uses drawingId when provided, otherwise the selected drawing. |
| inspect_drawing_elementB | Inspect one element and its bound children. Uses drawingId when provided, otherwise the selected drawing. |
| apply_drawing_opsA | Atomically apply up to 50 semantic operations. Uses drawingId when provided, otherwise the selected drawing. Read the summary first. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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