Documentation
Docs
Hjarni is a Markdown-based knowledge base with a built-in MCP server. These docs are organized around the jobs people actually come here to do: get started, connect an AI assistant, build better workflows, and integrate Hjarni programmatically.
Start here
Choose your path
ChatGPT or Claude user
Core concepts
Notes in Markdown
The storage model: note body, summary, source URL, tags, links, files, and version history.
Containers and tags
Use containers for structure and tags for cross-cutting labels.
Wiki-links between notes
Use stable note links so your AI can follow relationships, not just folders.
Custom AI instructions
Set global, personal, container, or team rules for how assistants should work.
Templates
Bootstrap a workspace structure through your connected assistant.
Reference and trust
MCP reference
Transport, OAuth, tools, prompts, limits, and troubleshooting.
REST API reference
Authentication, pagination, endpoints, request shapes, and response examples.
Teams and sharing
Understand team spaces, collaborators, and who can access what.
Export and data ownership
Exactly what you can export, what format it uses, and what stays portable.
Privacy, permissions, and AI boundaries
Clarify what Hjarni does, what ChatGPT or Claude do, and what a connection actually grants.
Can't find what you need?
Email [email protected] and we'll help.