knowmine-personal-knowledge-base vs Explicit Formula — Second Brain
knowmine-personal-knowledge-base is a plugin bundle for AI coding tools published by YIING99. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). Explicit Formula — Second Brain is an MCP server published by travisbergen2. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-15. 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 |  knowmine-personal-knowledge-base |  Explicit Formula — Second Brain |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.5.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.0 Downloads/month (npm): 110 Downloads/week (npm): 22 Forks (GitHub): 0 Stars (GitHub): 0 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 | knowmine-personal-knowledge-base | Explicit Formula — Second Brain |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) | 0 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (knowmine.ai/api/mcp) | On your machine (@travisbergen2/second-brain-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 3 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/yiing99/knowmine-claude-plugin | github.com/travisbergen2/rpcs1-sdk |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 24 h ago, requires a key | no remote endpoint we check |
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
knowmine-personal-knowledge-base
Save notes and decisions during AI conversations. Search them later by meaning, not keywords. Works across Claude Code and any MCP-compatible AI.
Explicit Formula — Second Brain
Your own notes, searched and cited by your AI — local-only, allowlist-gated, capped, and logged.
How to run each
knowmine-personal-knowledge-base As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install knowmine-personal-knowledge-base@claude-communityExplicit Formula — Second Brain As a local MCP server: npm package
claude mcp add --transport stdio second-brain -- npx -y @travisbergen2/second-brain-mcp --vault "<YOUR_VAULT>"Requires: --vault
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only knowmine-personal-knowledge-base has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: knowmine-personal-knowledge-base · What it can do: Explicit Formula — Second Brain · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.