Data Aggregator MCP server

by musharna·io.github.musharna/data-aggregator-mcp·v0.45.3

Find & fetch research datasets across 17 archives, omics registries, and literature sources.

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If you have run it, two minutes of your experience saves the next person an afternoon.

No tool declarations could be read from the package source. They show once the server is installed.

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claude mcp add data-aggregator-mcp -- uvx data-aggregator-mcp

Is Data Aggregator MCP server safe?: Not known yet: the safety scan has not run. New listings are scanned within a few days.
How do I install Data Aggregator?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Data Aggregator need an API key?: Yes. The registry entry asks for NCBI_API_KEY, LLM_API_KEY, EMBEDDING_API_KEY, DATA_GOV_API_KEY.
Is Data Aggregator maintained?: The latest release is v0.45.3.
What can I use instead of Data Aggregator?: Servers from other publishers that do the same job: Tooluniverse MCP server.

Same job from other publishers: the closest match first, then the best rated.

Tooluniverse
2,500+ scientific tools for AI scientists: life science, research, literature, and more.
not reviewed
Established
C

Local package. It runs on your machine, not through the gateway.

NCBI_API_KEYsecretOptional NCBI E-utilities API key; raises the rate limit 3->10 req/s for omics, literature, and taxonomy lookups.
LLM_API_BASEBase URL of an OpenAI-compatible /chat/completions endpoint; enables search(understand=true) and search(multi_query=true).
LLM_API_KEYsecretBearer token for the LLM endpoint (LLM_API_BASE); omit for keyless local servers.
LLM_MODELModel name passed to the LLM endpoint (default: gpt-4o-mini); set to whatever your endpoint serves.
EMBEDDING_API_BASEBase URL of an OpenAI-compatible /embeddings endpoint; enables search(rank=semantic) re-ranking.
EMBEDDING_API_KEYsecretBearer token for the embeddings endpoint (EMBEDDING_API_BASE); omit for keyless local servers.
EMBEDDING_MODELModel name passed to the embeddings endpoint (default: text-embedding-3-small).
DATA_GOV_API_KEYsecretOptional api.data.gov key for the data.gov source; without it requests fall back to the shared public DEMO_KEY, which is aggressively rate-limited.
UNPAYWALL_EMAILEmail address sent to the Unpaywall API; required to enable the Unpaywall PDF fallback leg of literature full-text retrieval.
NCBI_EMAILContact address sent to NCBI's ID converter; falls back to UNPAYWALL_EMAIL when unset.
DATAVERSE_BASE_URLResolve Dataverse DOIs against a different installation (default: https://dataverse.harvard.edu).
CACHE_TTL_SECONDSResolve-cache lifetime in seconds (default: 3600); an unparseable value falls back to the default.

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