Obsidian Copilot is an Obsidian plugin that brings AI agents into your note-taking vault for research, writing, and knowledge work.
The plugin solves the problem of integrating AI assistance directly into Obsidian workflows by embedding agents that can inspect notes, create files, and execute multi-step tasks within your vault. It supports three agent backends: opencode, which can be self-hosted or use Copilot-hosted models; Claude Code, which connects to an existing Claude Code installation; and Codex, which integrates through an adapter. Users can bring their own API keys from Claude or ChatGPT rather than purchasing a Copilot plan, with provider terms and usage limits applying to their own access.
The tool suits knowledge workers and researchers who want AI assistance without leaving Obsidian. If you already pay for Claude or ChatGPT API access, you can use that directly with Copilot rather than adopting a separate subscription. The plugin is designed to work within your existing vault structure, creating and organizing notes as part of its multi-turn interactions.
Development activity shows consistent engagement with the codebase through regular updates and maintenance of the agent infrastructure. The project maintains active support for multiple agent backends and continues to add capabilities for vault integration. Documentation is kept current with setup guides for each agent option and detailed explanations of how the agent mode operates.
