memex-bookmarking-2nd-brain vs 30book
memex-bookmarking-2nd-brain is a plugin bundle for AI coding tools published by WorldBrain. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). 30book is an MCP server published by sepehr071. Marketplaces we read that list it: 2 (Official MCP Registry, PyPI (MCP servers)). 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 |  memex-bookmarking-2nd-brain |  30book |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 2026.8.7 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.3.2 Downloads/month (PyPI): 0 Downloads/week (PyPI): 511 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
| PyPI (MCP servers) | Not listed | Listed Version: 0.3.2 Downloads/month (PyPI): 0 Downloads/week (PyPI): 511 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 | memex-bookmarking-2nd-brain | 30book |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) | 0 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release (differs) | Not published | 2026-10-23 |
| Where it runs (differs) | Remote server (api.memex.garden/mcp) | On your machine (30book-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | 1, secrets among them: 0 | 1, secrets among them: 0 |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 4 | Not a bundle |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/worldbrain/memex-claude | github.com/sepehr071/30book-mcp |
| Changes in the last 7 days (differs) | 0 | 6 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Answered with HTTP 403 (8 h ago) | 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
memex-bookmarking-2nd-brain
This is the Claude plugin for Memex.Garden, a bookmarking second brain for humans and agents. You can save, transcribe, summarize and search anything you come across. Websites, Notes, Web Highlights, Youtube, X, Tiktok, Instagram, PDFs, Reddit or images." How it works: - You can instruct your agent to save any url and it will be indexed, videos transcribed, images analyzed in a powerful full-text and vector search. - You can query for saved content and get back structured data, readymade for your agent to process
30book
Unofficial read-only 30book: search Iranian printed books, compare editions and prices.
How to run each
memex-bookmarking-2nd-brain As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install memex-bookmarking-2nd-brain@claude-community30book As a local MCP server: PyPI package
claude mcp add --transport stdio 30book-mcp -- uvx 30book-mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only memex-bookmarking-2nd-brain 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
Only memex-bookmarking-2nd-brain asks for
MEMEX_REALTIME_STATE_DIR
Only 30book asks for
SIBOOK_MCP_PROXY
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: memex-bookmarking-2nd-brain · What it can do: 30book · 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. Package data comes from the Python Package Index (pypi.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.