How do I install Data Aggregator?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is Data Aggregator official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 13 (Limited). The formula is published on the methodology page.

MCPpedia

Data Aggregator MCP Server | MCPpedia

Data Aggregator MCP Server

Name: Data Aggregator MCP Server
Author: musharna

Find & fetch research datasets across 20 archives, omics registries, and literature sources.

Tools Versions Alternatives

Registrymusharna

13Limited

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "musharna-data-aggregator-mcp": {
      "command": "uvx",
      "args": [
        "data-aggregator-mcp"
      ],
      "env": {
        "NCBI_API_KEY": "YOUR_NCBI_API_KEY",
        "LLM_API_BASE": "",
        "LLM_API_KEY": "YOUR_LLM_API_KEY",
        "LLM_MODEL": "",
        "EMBEDDING_API_BASE": "",
        "EMBEDDING_API_KEY": "YOUR_EMBEDDING_API_KEY",
        "EMBEDDING_MODEL": "",
        "DATA_GOV_API_KEY": "YOUR_DATA_GOV_API_KEY",
        "UNPAYWALL_EMAIL": "",
        "NCBI_EMAIL": "",
        "DATAVERSE_BASE_URL": "",
        "CACHE_TTL_SECONDS": ""
      }
    }
  }
}

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Environment

Name	Required	Notes
NCBI_API_KEY	No	Optional NCBI E-utilities API key; raises the rate limit 3->10 req/s for omics, literature, and taxonomy lookups. Secret.
LLM_API_BASE	No	Base URL of an OpenAI-compatible /chat/completions endpoint; enables search(understand=true) and search(multi_query=true).
LLM_API_KEY	No	Bearer token for the LLM endpoint (LLM_API_BASE); omit for keyless local servers. Secret.
LLM_MODEL	No	Model name passed to the LLM endpoint (default: gpt-4o-mini); set to whatever your endpoint serves.
EMBEDDING_API_BASE	No	Base URL of an OpenAI-compatible /embeddings endpoint; enables search(rank=semantic) re-ranking.
EMBEDDING_API_KEY	No	Bearer token for the embeddings endpoint (EMBEDDING_API_BASE); omit for keyless local servers. Secret.
EMBEDDING_MODEL	No	Model name passed to the embeddings endpoint (default: text-embedding-3-small).
DATA_GOV_API_KEY	No	Optional 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. Secret.
UNPAYWALL_EMAIL	No	Email address sent to the Unpaywall API; required to enable the Unpaywall PDF fallback leg of literature full-text retrieval.
NCBI_EMAIL	No	Contact address sent to NCBI's ID converter; falls back to UNPAYWALL_EMAIL when unset.
DATAVERSE_BASE_URL	No	Resolve Dataverse DOIs against a different installation (default: https://dataverse.harvard.edu).
CACHE_TTL_SECONDS	No	Resolve-cache lifetime in seconds (default: 3600); an unparseable value falls back to the default.

Data Aggregator MCP Server

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