DevSpeak vs io.github.mrslbt/japan-ux
DevSpeak is an MCP server published by juanjaragavi. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.mrslbt/japan-ux is an MCP server published by mrslbt. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-29. 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 |  DevSpeak |  io.github.mrslbt/japan-ux |
|---|---|---|
| Official MCP Registry | Listed Version: 1.3.1 Downloads/month (npm): 95 Downloads/week (npm): 20 Not marked · First seen |
Listed Version: 2.1.1 Downloads/month (npm): 522 Downloads/week (npm): 39 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 | DevSpeak | io.github.mrslbt/japan-ux |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | No figure on GitHub | 0 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release (differs) | 2026-10-24 | Not published |
| Where it runs (differs) | Remote server (www.devspeak.dev/mcp) | On your machine (japan-ux-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 2, secrets among them: 1 | Not published |
| Licence | Not stated | Not stated |
| Repository (differs) | Not stated | github.com/mrslbt/japan-ux-mcp |
| Changes in the last 7 days (differs) | 1 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 8 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
DevSpeak
Improve or correct developer writing, or turn rough notes into technical specs, from your agent.
io.github.mrslbt/japan-ux
Japanese UI + UX correctness for AI coding agents — typography, forms, keigo, JLReq checks.
How to run each
DevSpeak As a remote MCP server
claude mcp add --transport http devspeak https://www.devspeak.dev/mcp --header "x-api-key: <YOUR_X_API_KEY>"Requires: DEVSPEAK_API_KEY (secret), x-api-key header
io.github.mrslbt/japan-ux As a local MCP server: npm package
claude mcp add --transport stdio japan-ux -- npx -y japan-ux-mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only DevSpeak 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
The marketplaces of io.github.mrslbt/japan-ux publish no settings it asks for, so we do not compare settings.
What it can do: DevSpeak · What it can do: io.github.mrslbt/japan-ux · Compare two other plugins
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.