ConductScience catalog vs Data Aggregator
ConductScience catalog is an MCP server published by conductscience.com. Marketplaces we read that list it: 1 (Official MCP Registry). Data Aggregator is an MCP server published by musharna. Marketplaces we read that list it: 2 (Official MCP Registry, PyPI (MCP servers)). As of our marketplace pass on 2026-11-12. 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 |  Data Aggregator | |
|---|---|---|
| Official MCP Registry | Listed Version: 1.0.0 No figure published Not marked · First seen |
Listed Version: 0.75.4 Downloads/month (PyPI): 17 008 Downloads/week (PyPI): 219 Forks (GitHub): 0 Stars (GitHub): 4 Not marked · First seen |
| PyPI (MCP servers) | Not listed | Listed Version: 0.75.4 Downloads/month (PyPI): 17 008 Downloads/week (PyPI): 219 Forks (GitHub): 0 Stars (GitHub): 4 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 | ConductScience catalog | Data Aggregator |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | No figure on GitHub | 4 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release (differs) | Not published | 2026-10-20 |
| Where it runs (differs) | Remote server (conductscience.com/api/mcp/catalog) | On your machine (data-aggregator-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 12, secrets among them: 4 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | Not stated | github.com/musharna/data-aggregator-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-11-04 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded less than an hour ago | 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
ConductScience catalog
Search ConductScience lab equipment and research software, and read product details.
Data Aggregator
Find & fetch research datasets across 21 archives, omics registries, and literature sources.
How to run each
ConductScience catalog As a remote MCP server
claude mcp add --transport http catalog https://conductscience.com/api/mcp/catalogData Aggregator As a local MCP server: PyPI package
claude mcp add --env "DATA_GOV_API_KEY=<YOUR_DATA_GOV_API_KEY>" --env "EMBEDDING_API_KEY=<YOUR_EMBEDDING_API_KEY>" --env "LLM_API_KEY=<YOUR_LLM_API_KEY>" --env "NCBI_API_KEY=<YOUR_NCBI_API_KEY>" --transport stdio data-aggregator-mcp -- uvx data-aggregator-mcpRequires: DATA_GOV_API_KEY (secret), EMBEDDING_API_KEY (secret), LLM_API_KEY (secret), NCBI_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only ConductScience catalog 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 ConductScience catalog publish no settings it asks for, so we do not compare settings.
What it can do: ConductScience catalog · What it can do: Data Aggregator · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. 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.