Obsidian Copilot
An open-source Obsidian AI plugin for searching and writing notes with Ollama, LM Studio, Claude Code or Codex. Local indexes stay on your device.
Obsidian Copilot brings AI agents into your vault to find notes by meaning, edit drafts and organize research. It's for writers, researchers and other Obsidian users who want AI to work directly with their existing notes. Agents create Markdown files, wikilinks and canvases that remain in your vault.
The plugin is open source under AGPL-3.0. It supports opencode, Claude Code and Codex, with shared skills across agents. You can use an existing Claude or ChatGPT account, your own provider keys, or local models through Ollama and LM Studio. It also connects to OpenAI, Anthropic, Google and OpenAI-compatible endpoints. Optional licensed collaboration combines several installed agents into one read-only research or review request.
Miyo, its local indexing engine, searches notes alongside external PDFs and EPUBs. It also surfaces related notes beside your current writing. Projects keep instructions, reusable context and chat history together for ongoing work; saved commands handle repeatable prompts. Quick Ask lets you discuss or revise selected text inside a note.
Agent mode runs on desktop because its backends use local processes. Mobile users can use Quick Chat, custom commands and Quick Ask. Notes and Miyo indexes stay on your device, while prompts and included context go to the model or service you choose. A local endpoint processes those requests locally. Cloud providers process them remotely.
An optional hosted offering requires an account and internet access. Its models and cloud tools send the required input to Brevilabs for processing.
