What is Caldera?
Caldera is a free, open-source plugin for Obsidian that turns your notes vault into a living public profile page and connects vaults to each other. Your page updates itself from your notes (a daily journal, activity, topics, projects and the notes you choose to share), and friends can share notes as end-to-end encrypted cards, post asks and offers for help, and give positive-only "gravity". It is private by default: nothing leaves your vault unless you switch it on.
Updated 2026-10-11 · by mjonesone, LLC
What Caldera does
- Living profile. A public page at caldera.social/@you, built on your own device from your vault and republished automatically.
- Friends between vaults. Add friends by handle. Share any note as an end-to-end encrypted card that lands in their vault as a normal note.
- Help exchange. Post asks ("I could use help with...") and offers, with optional help-credit bounties. Credits have no cash value.
- Gravity. Positive-only recognition that fades over a month. No likes, downvotes or follower counts.
- AI-native setup. One copy-paste prompt lets Claude Code, Codex or Cursor install it and run a daily journal routine.
Who makes it
Caldera is built by mjonesone, LLC. The plugin and core library are MIT-licensed, the reference hub is AGPL-3.0 and self-hostable, and the protocol is open. Source: github.com/schoettle-cmd/caldera.
How private is it?
The plugin reads your vault locally and never uploads it. Only counts, the profile sections you switch on, notes you mark caldera: public, and journal fields you write are published. Shared notes are end-to-end encrypted; the hub stores ciphertext it cannot read. Your identity is a key in your vault, not a password account.
Questions
Is Caldera free?
Yes. The plugin, your profile and friends are free and open source.
Does Caldera need Obsidian?
Yes, it is an Obsidian plugin. Obsidian is free; the Caldera install prompt can install Obsidian for you and create your first vault.
Is Caldera an official Obsidian product?
No. Caldera is an independent, open-source community plugin made by mjonesone, LLC.