Opik vs Openaire
Opik is an MCP server published by comet-ml. Marketplaces we read that list it: 3 (Official MCP Registry, Docker MCP Catalog, PyPI (MCP servers)). Openaire is an MCP server published by pipeworx-io. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-13. 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 |  Opik |  Openaire |
|---|---|---|
| Official MCP Registry | Listed Version: 3.0.9 Downloads/month (PyPI): 3 591 Downloads/week (PyPI): 778 Forks (GitHub): 37 Stars (GitHub): 226 Not marked · First seen |
Listed Version: 0.2.1 Downloads/month (npm): 828 Downloads/week (npm): 126 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
| Docker MCP Catalog | Listed Version: sha256:0e0d7d33d5eb Forks (GitHub): 37 Pulls (Docker Hub): 17 555 Stars (Docker Hub): 1 Stars (GitHub): 226 Not marked · First seen |
Not listed |
| PyPI (MCP servers) | Listed Version: 3.0.9 Downloads/month (PyPI): 3 591 Downloads/week (PyPI): 778 Forks (GitHub): 37 Stars (GitHub): 226 Not marked · First seen |
Not listed |
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 | Opik | Openaire |
|---|---|---|
| Marketplaces that list it (differs) | 3 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 226 (better) | 0 (worse) |
| Pulls (Docker Hub) (differs) | 17 555 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 37 (better) | 0 (worse) |
| Last release (differs) | 2026-11-07 (better) | 2026-11-03 (worse) |
| Where it runs (differs) | Remote server or your machine | Remote server (gateway.pipeworx.io/openaire/mcp) |
| Transport (differs) | Streamable HTTP, stdio | Streamable HTTP |
| Tools it declares (differs) | 13 | Not published |
| Environment variables it asks for (differs) | 4, secrets among them: 1 | 1, secrets among them: 1 |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/comet-ml/opik-mcp | github.com/pipeworx-io/mcp-openaire |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 14 h ago, requires authentication | Responded 16 h ago |
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
Opik
Read and score Opik traces, experiments, datasets and prompts from your AI assistant.
Openaire
OpenAIRE MCP — EU research outputs (publications, datasets, software, projects)
How to run each
Opik As a remote MCP server
claude mcp add --transport http opik-mcp https://www.comet.com/opik/api/v1/mcpRequires: OPIK_API_KEY (secret)
Openaire As a remote MCP server
claude mcp add --transport http openaire https://gateway.pipeworx.io/openaire/mcpRequires: PIPEWORX_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Both endpoints responded at the last daily check. How we check endpoints
Tools each declares
Only Opik has
add-trace-feedbackcreate-projectcreate-promptget-prompt-versionget-promptsget-trace-by-idget-trace-statsget-trace-threadslist-projectslist-tracesopik-integration-docssave-prompt-version
Show the remaining 1
search-traces
Only Openaire has
ai_visibility_checkarchive_comparearchive_evidenceask_pipeworxask_pipeworx_betaask_pipeworx_groundedbet_researchclassify_rowcompany_factscompare_entitiesdeep_researchdiscover_tools
Show the remaining 34
entity_profileforgetgenerate_llms_txtget_projectget_research_productkalshi_weather_edgelist_subscriptionspipeworx_feedbackpipeworx_trendingpolymarket_arbitragepolymarket_edge_trackerpolymarket_edgespolymarket_fill_riskpolymarket_kalshi_spreadrecallrecent_alertsrecent_changesrelease_calendar_marketsrememberresearch_rowresolution_auditresolution_diffresolve_entityscan_competitor_ai_presencescan_dependencysearch_datasetssearch_projectssearch_publicationssearch_softwaresearch_withinsubscribesuggest_questionsunsubscribevalidate_claim
Both have
None
Tool names as the marketplaces declare them and as Ext Ops observed them on the endpoints (Openaire as of 2026-10-14). More tools is not better in itself: compare what each needs for the job.
Settings each asks for
Only Opik asks for
COMET_URL_OVERRIDEOPIK_API_BASE_URLOPIK_API_KEY (secret)OPIK_URLOPIK_WORKSPACEOPIK_WORKSPACE_NAME
Only Openaire asks for
PIPEWORX_API_KEY (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: Opik · What it can do: Openaire · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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.