"Excalidraw" matching MCP servers:

End-to-end agent-managed company brain. Humans and any MCP agent co-author living docs (Markdown + extensions), 40+ visual diagrams (Mermaid, BPMN, D2, PlantUML, ELK, Excalidraw), plans, and a self-learning Knowledge Graph. 163 tools across 16 categories. Auth: OAuth 2.1 or API key. Lean, secure, affordable — from individuals to enterprise.

Enables reading, writing, searching, and surgical editing of Obsidian vault notes, tags, and frontmatter, plus workspace control, vault structure management, and native Excalidraw automation.