Hjarni is unclaimed —

Hjarni

Long-term memory for ChatGPT and Claude·hjarni.com

Hjarni is a hosted Markdown knowledge base with a built-in MCP server that lets ChatGPT, Claude, and other MCP-compatible AI assistants read and write notes directly. Notes are organized in folders with tags, support wiki-links, full-text search, and versioned edit history, with custom AI instructions settable per folder or team. It offers a full REST API on every plan, shared folders for team collaboration, and Markdown export at any time.

What it's for

Giving ChatGPT/Claude persistent memory across conversationsStoring architecture decisions and coding conventionsOrganizing research literature and synthesisCapturing founder strategy, meetings, and decisionsMaintaining a writing style guide for AI draftingBuilding a shared team knowledge base / company brainRecording customer interview notes and themesAuto-capturing Claude Code or Codex CLI sessions as notesTracking a personal reading list

Features 18

30-day recoverable Trash
Built-in MCP server for ChatGPT and Claude
Conflict-safe note editing
Custom AI instructions per folder, team, or account
Export as Markdown ZIP, anytime
File attachments (PDFs, images, docs)
Full REST API on all plans
Markdown notes with folders, tags, and full-text search
Multi-select bulk actions (move, archive, delete)
Notes flag as stale or verified
Public folder sharing as read-only pages
Ready-made templates with pre-written AI instructions
Shared folders for teams
Team audit log (Enterprise)
Version history on every note with revert
Web clipper (Chrome extension)
Wiki-links between notes
Zapier automation for note creation

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

Forpeople who use AI assistants daily, developers, researchers, founders, writers, teams

CompanyHjarni · 2026

Integrations

ChatGPTClaudeCursorClaude CodeWindsurfClineGitHub CopilotZedContinue.devAiderGooseOpen WebUIRaycastAlfredObsidianGemini CLIPerplexityJunieLibreChatJanLM Studion8nZapierOpenClaw

Complianceself-reported

GDPR

Resources

Pricing

Prices are also displayed in EUR (€9/month Pro, €18/seat/month Teams) and GBP (£8/£15) via a currency toggle. Enterprise pricing (SSO, SCIM, audit log) is available on request.

FreeFree

No credit card required; no trial or expiration.

Up to 25 notes, 20 MB across 5 file attachments

Pro$10/mo

Billed monthly or $99/year (2 months free). Also shown as €9/month (£8).

Unlimited notes; unlimited file attachments (individual files up to 25 MB); shared folders with up to 2 collaborators

Teams$20/user/mo

Billed monthly or $200/seat/year (2 months free). Also shown as €18/seat/month (£15). Enterprise adds SSO, SCIM, and per-team audit log on request.

Free for the first 25 team notes; unlimited team notes, attachments, and sharing after upgrade