gemini-diagram-mcp
by arunsanna
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| HOST | No | HTTP server bind host | 0.0.0.0 |
| PORT | No | HTTP server bind port | 3000 |
| OUTPUT_DIR | No | Output directory for generated images | ./data/out |
| OIDC_ISSUER | No | OIDC issuer URL (required for oidc mode) | |
| ALLOWED_HOSTS | No | Comma-separated allowed host headers | |
| INLINE_IMAGES | No | Include base64 image data in tool responses | 0 |
| MCP_AUTH_MODE | No | Auth mode: token, oidc, none | token |
| OIDC_AUDIENCE | No | Expected token audience(s) | |
| OIDC_JWKS_URI | No | Override JWKS URI (skips discovery) | |
| GOOGLE_API_KEY | No | Backward-compatible alias | |
| MCP_AUTH_TOKEN | No | Static bearer token(s) | |
| MCP_AUTH_TOKENS | No | Comma-separated multiple tokens | |
| PUBLIC_BASE_URL | No | Base URL for download links | http://localhost:$PORT |
| MCP_MAX_SESSIONS | No | Maximum concurrent sessions | 100 |
| VERTEX_AI_API_KEY | No | Vertex AI API key (preferred) | |
| GOOGLE_CLOUD_API_KEY | No | Backward-compatible alias | |
| MCP_ALLOW_QUERY_TOKEN | No | Allow ?token=... query param auth | 1 (token mode) |
| VERTEX_AI_IMAGE_MODEL | No | Model for image generation | gemini-3-pro-image-preview |
| MCP_SESSION_TIMEOUT_MIN | No | Session timeout in minutes | 30 |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
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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