Your team's context, together
One knowledge base. Every teammate's AI.
A shared knowledge base for small technical teams, founders, and indie SaaS. Each teammate's ChatGPT or Claude can read and update your decisions, runbooks, and customer notes.
Free to start, no credit card. Everyone brings their own ChatGPT or Claude.
The shift
Everyone's AI, reading the same notes.
| Before Hjarni | With Hjarni |
|---|---|
| Every teammate explains context to their own AI | Every teammate's AI reads the same team notes |
| Decisions disappear into Slack | Decisions live in a searchable decision log |
| New hires interrupt senior people for basics | New hires ask Claude or ChatGPT first |
| Runbooks are passive docs | Runbooks become instructions the AI can follow |
See it work
A new hire asks. The team's notes answer.
Put your context in shared folders
Keep runbooks, decision logs, customer interviews, and onboarding for new hires in plain Markdown. One folder per kind of context, each with its own AI instructions.
Everyone connects their own AI
Each teammate connects ChatGPT or Claude through the built-in MCP server. No bundled AI, no per-seat token bills.
Ask it to check the team's notes
Search the shared folders before answering and save decisions back. The next teammate's AI can retrieve the updated notes.
Start with Developer Project Memory or a Customer Interview Repository.
Claude
Team runbooks
You: I'm new here. How do we deploy to production?
Hjarni · Search · Runbooks
Claude: Your team's Deploy runbook says: merge to main, wait for CI, then run bin/deploy production. Deploys are paused on Fridays.
You: What if a migration fails halfway?
Hjarni · Search · Decisions
Claude: The runbook says to run bin/deploy rollback, then post in the incident channel. The decision log explains why migrations stay backward compatible for one release.
Roles & instructions
Who can edit what
Everyone on the team can read the shared knowledge base, so every teammate's AI works from the same notes. Roles decide who can change what.
Each member has a role on every folder: a viewer reads, an editor reads and writes, an admin also manages other members' roles. Set a team-wide default, then override it per folder. The owner always keeps full control.
Need SAML SSO, SCIM provisioning, or a per-team audit log? See Hjarni for Teams (Enterprise).
From the people who use it
My notes, generated by AI, shared with my team, so our AI agents always have the full context of everything.
A note from the founder
We run Hjarni on Hjarni. Our roadmap, launch checklists, and customer notes live in one shared knowledge base, and Claude reads and updates it every session instead of me re-explaining where things stand.
Room for your team
Per seat. No AI on the bill.
Teams is $20 per seat per month for the shared knowledge base. Seats prorate automatically as people join or leave. Everyone brings their own AI subscription.
Start free for your first 25 team notes. No card needed.
Common questions
Common questions
Can my team share memory across ChatGPT and Claude at the same time?
Yes. The shared notes live in Hjarni, not inside any one AI product, so a teammate on ChatGPT and a teammate on Claude read and write the same knowledge base. That is the difference from ChatGPT memory or Claude Projects, where the context is locked to one product and usually to one person.
What does a team actually get on the Team plan?
A shared knowledge base separate from everyone's personal notes: shared folders, team-level AI instructions that every member's AI follows, per-folder viewer, editor, and admin roles, and member management. Each teammate connects the AI they already use to it. SAML single sign-on, SCIM provisioning, and a per-team audit log are available on request for companies that run a security review.
Can the same note be both personal and shared?
Each note lives in either your personal space or a team, and you can move it across whenever you need to.
Do all teammates need their own AI subscription?
Everyone uses the AI they already have, like ChatGPT, Claude, or Cursor. Hjarni gives that AI a shared memory rather than bundling one, so each teammate keeps their own subscription.
How does pricing work for teams?
Teams is $20 per seat per month, free for your first 25 team notes. Seats prorate automatically as people join or leave, and the plan covers shared folders, team-level AI instructions, and member management.
Can different teammates set different AI instructions?
Team-level instructions are shared across the team. Personal instructions stay personal.
Can I control who can edit which folders?
Each member has a viewer, editor, or admin role on every folder, resolved from a team-wide default and any per-folder overrides. A viewer reads, an editor also writes, an admin also manages other members' roles. Everyone on the team can read the shared folders; roles decide who can change them. Roles cascade to subfolders, and the team owner always keeps full control.
Which templates fit a team setup?
Developer Project Memory and Customer Interview Repository are the two strongest team starters. Meeting Memory and Writing Style Guide pair well once the team is past the first install. Templates build their folder tree in your personal space; move the folders into the team when you bring the team in.
Start your team
One brain. Every teammate's AI.
Start free with 25 team notes. No credit card required.
Per seat when you grow. Everyone brings their own ChatGPT or Claude.