Omi vs open-second-brain
Omi is an MCP server published by BasedHardware. Marketplaces we read that list it: 1 (Docker MCP Catalog). open-second-brain is a plugin bundle for AI coding tools published by Open Second Brain contributors. Marketplaces we read that list it: 1 (Community GitHub marketplaces). As of our marketplace pass on 2026-10-24. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Omi | |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:674097f43757 Forks (GitHub): 2 654 Pulls (Docker Hub): 34 015 Stars (Docker Hub): 1 Stars (GitHub): 13 807 Not marked · First seen |
Not listed |
| Community marketplace itechmeat/open-second-brain | Not listed | Listed Version: 1.93.0 Forks (GitHub): 63 Stars (GitHub): 493 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | Omi | open-second-brain |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 13 807 (better) | 493 (worse) |
| Pulls (Docker Hub) (differs) | 34 015 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 2 654 (better) | 63 (worse) |
| Last release (differs) | Not published | 2026-10-23 |
| Where it runs (differs) | On your machine (mcp/omi) | Installs as a plugin bundle |
| Transport (differs) | stdio | Not stated |
| Tools it declares (differs) | 6 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | Not published |
| Hooks it runs (differs) | Not published | 26 |
| Parts of the bundle (differs) | Not a bundle | 17 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/basedhardware/omi | github.com/itechmeat/open-second-brain |
| Changes in the last 7 days (differs) | 0 | 4 |
| First seen (differs) | 2026-10-11 | 2026-10-22 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Omi
A Model Context Protocol server for Omi interaction and automation. This server provides tools to read, search, and manipulate Memories and Conversations.
open-second-brain
Plugin-first second brain for AI agents and humans (Obsidian-compatible Markdown vaults).
How to run each
Omi As a local MCP server: Docker image
claude mcp add --env "OMI_API_KEY=<YOUR_OMI_API_KEY>" --transport stdio omi -- docker run -i --rm -e OMI_API_KEY mcp/omiRequires: OMI_API_KEY (secret)
open-second-brain As a Claude Code plugin
/plugin marketplace add itechmeat/open-second-brain
/plugin install open-second-brain@open-second-brainCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of open-second-brain publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of open-second-brain publish no settings it asks for, so we do not compare settings.
What it can do: Omi · What it can do: open-second-brain · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.