deep-research vs OpenArx
deep-research is a plugin bundle for AI coding tools published by oduffy-delphi. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). OpenArx is an MCP server published by openarx.ai. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-28. 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 |  deep-research |   OpenArx |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.3.1 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.3.2 Forks (GitHub): 0 Stars (GitHub): 8 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 | deep-research | OpenArx |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 0 (worse) | 8 (better) |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (mcp.openarx.ai/researcher/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 8 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/oduffy-delphi/deep-research-claude | github.com/openarx-ai/openarx-core |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Not responding since 2026-10-14 |
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
deep-research
Multi-agent deep research pipelines for Claude Code. Runs internet research, repository analysis, schema-driven structured research, and media research (via NotebookLM) using coordinated Agent Teams --- Haiku scouts build source corpora, Sonnet specialists verify and cross-challenge findings, and an Opus synthesizer produces the final output. Drop-in plugin, no code dependencies.
OpenArx
Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.
How to run each
deep-research As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install deep-research@claude-communityOpenArx As a remote MCP server
claude mcp add --transport http openarx https://mcp.openarx.ai/researcher/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only OpenArx 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: deep-research · What it can do: OpenArx · 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.