rex vs Codeix
rex is a plugin bundle for AI coding tools published by vykhovanets. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). Codeix is an MCP server published by montanetech. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-13. 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 |  rex |  Codeix |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.12 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.5.0 Downloads/month (npm): 179 Downloads/week (npm): 45 Forks (GitHub): 3 Stars (GitHub): 9 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 | rex | Codeix |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 (worse) | 9 (better) |
| Forks (GitHub) (differs) | 0 (worse) | 3 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (rex-index) | On your machine (codeix) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/vykhovanets/rex | github.com/montanetech/codeix |
| Changes in the last 7 days | 0 | 0 |
| 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
rex
Rex provides sub-second Python symbol search across all installed .venv packages. Three tools — rex_find, rex_show, rex_members — let Claude look up function signatures, docstrings, class members, and file locations instantly, without web search or grepping through source files. Results are grounded in the actually installed version — no outdated docs, no hallucinated parameters. Auto-indexes on first use and re-indexes incrementally when packages change. Read-only by design.
Codeix
Fast semantic code search for AI agents — find symbols, references, and callers across any codebase
How to run each
rex As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install rex@claude-communityCodeix As a local MCP server: npm package
claude mcp add --transport stdio codeix -- npx -y codeixCommands 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
Neither one's marketplaces publish the settings it asks for.
What it can do: rex · What it can do: Codeix · 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.