exa vs Data Aggregator
exa is a plugin bundle for AI coding tools published by exa-labs. Marketplaces we read that list it: 5 (Claude Code: claude-plugins-official, Official MCP Registry, Docker MCP Catalog, Claude: knowledge-work-plugins, Community GitHub marketplaces). 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 2026-10-25. 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 |  exa |  Data Aggregator |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 3.4.1 Forks (GitHub): 402 Stars (GitHub): 5 162 Not marked · First seen |
Not listed |
| Official MCP Registry | Listed Version: 3.4.1 Forks (GitHub): 402 Stars (GitHub): 5 162 Not marked · First seen |
Listed Version: 0.75.4 Downloads/month (PyPI): 17 008 Downloads/week (PyPI): 1 633 Forks (GitHub): 0 Stars (GitHub): 4 Not marked · First seen |
| Docker MCP Catalog | Listed Version: sha256:d88edd571d98 Forks (GitHub): 402 Pulls (Docker Hub): 36 951 Stars (Docker Hub): 7 Stars (GitHub): 5 162 Not marked · First seen |
Not listed |
| Claude: knowledge-work-plugins | Listed Version: 3.4.1 Forks (GitHub): 402 Stars (GitHub): 5 162 Not marked · First seen |
Not listed |
| PyPI (MCP servers) | Not listed | Listed Version: 0.75.4 Downloads/month (PyPI): 17 008 Downloads/week (PyPI): 1 633 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 | exa | Data Aggregator |
|---|---|---|
| Marketplaces that list it (differs) | 5 (better) | 2 (worse) |
| Stars (GitHub) (differs) | 5 162 (better) | 4 (worse) |
| Pulls (Docker Hub) (differs) | 36 951 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 402 (better) | 0 (worse) |
| Last release (differs) | Not published | 2026-10-20 |
| Where it runs (differs) | Remote server or your machine | On your machine (data-aggregator-mcp) |
| Transport (differs) | Streamable HTTP, stdio | stdio |
| Tools it declares (differs) | 2 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | 12, secrets among them: 4 |
| Parts of the bundle (differs) | 3 | Not a bundle |
| Licence | MIT | MIT |
| Repository (differs) | github.com/exa-labs/exa-mcp-server | github.com/musharna/data-aggregator-mcp |
| Changes in the last 7 days (differs) | 0 | 10 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 47 h 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
exa
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers, and more.
Data Aggregator
Find & fetch research datasets across 21 archives, omics registries, and literature sources.
How to run each
exa As a Claude Code plugin
/plugin install exa@claude-plugins-officialData 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 exa has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of Data Aggregator publish no list of tools, so we do not compare tools.
Settings each asks for
Only exa asks for
EXA_API_KEY (secret)
Only Data Aggregator asks for
CACHE_TTL_SECONDSDATAVERSE_BASE_URLDATA_GOV_API_KEY (secret)EMBEDDING_API_BASEEMBEDDING_API_KEY (secret)EMBEDDING_MODELLLM_API_BASELLM_API_KEY (secret)LLM_MODELNCBI_API_KEY (secret)NCBI_EMAILUNPAYWALL_EMAIL
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: exa · What it can do: Data Aggregator · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. 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. Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. 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.