What you get

PubMed and Crossref are marked no-download; it does not pretend every source yields full text.

A Paper-Search MCP That Says What It Cannot Download

Added 2026-08-06

A Python MCP server: one search tool fans out across sources and deduplicates, another handles downloads with fallbacks. A capability matrix in the README marks, from real testing, which sources support download.

Content & KnowledgeWriting & Research
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A Paper-Search MCP That Says What It Cannot Download preview

The fallback chain has a stated order: native download, OA aggregators, Unpaywall DOI resolution, and only then optional Sci-Hub — which gets its own section: mirrors unstable, legal exposure jurisdiction-dependent, responsibility yours, never the default. Unpaywall is the one mandatory setting; without an email the whole source is skipped. IEEE and ACM are skeletons that throw not-implemented. The author also tabulates upstream failures: Google Scholar behind captchas, anonymous Semantic Scholar rate-limited.

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