Smart Reader MCP vs io.github.caelum29/calibre-mcp
Smart Reader MCP is an MCP server published by SylphxAI. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.caelum29/calibre-mcp is an MCP server published by caelum29. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-07. 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 |  Smart Reader MCP |  io.github.caelum29/calibre-mcp |
|---|---|---|
| Official MCP Registry | Listed, marked deprecated Version: 0.1.1 Downloads/month (npm): 155 Downloads/week (npm): 24 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Listed Version: 0.12.0 Downloads/month (npm): 1 220 Downloads/week (npm): 902 Forks (GitHub): 4 Stars (GitHub): 24 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 | Smart Reader MCP | io.github.caelum29/calibre-mcp |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 0 (worse) | 24 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 4 (better) |
| Last release (differs) | Not published | 2026-10-30 |
| Where it runs (differs) | On your machine (@sylphx/smart-reader-mcp) | On your machine (calibre-mcp) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 4, secrets among them: 0 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/sylphxai/smart-reader-mcp | github.com/caelum29/calibre-mcp |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen | 2026-10-11 | 2026-10-11 |
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
Smart Reader MCP
Sniff format and delegate to Sylphx Reader siblings for unified media read.
io.github.caelum29/calibre-mcp
Calibre ebook library server: search, read content, curate metadata, semantic search, gated writes.
How to run each
Smart Reader MCP As a local MCP server: npm package
claude mcp add --transport stdio smart-reader-mcp -- npx -y @sylphx/smart-reader-mcpio.github.caelum29/calibre-mcp As a local MCP server: npm package
claude mcp add --transport stdio calibre-mcp -- npx -y calibre-mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of Smart Reader MCP publish no settings it asks for, so we do not compare settings.
What it can do: Smart Reader MCP · What it can do: io.github.caelum29/calibre-mcp · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. 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.