Environment variable UNPAYWALL_EMAIL
No value of this variable is held in this registry. The registry knows only the name the source states.
Entries naming UNPAYWALL_EMAIL as an ordinary environment variable
| CiteNexus | io.github.akougkas/cite-nexus-mcp | Search scholarly sources, verify references, and export citations with traceable evidence. |
|---|---|---|
| Data Aggregator | io.github.musharna/data-aggregator-mcp | Find & fetch research datasets across 18 archives, omics registries, and literature sources. |
| unpaywall in namespace io.github | io.github.SMABoundless/unpaywall | Open-access availability for 120M+ scholarly articles via the Unpaywall API |
| fulltext-article-downloader in namespace io.github | io.github.computron/fulltext-article-downloader | Full text of research papers by DOI, arXiv, PMC or OpenReview id, verified against the record |
| pubmed-mcp-server in namespace io.github | io.github.cyanheads/pubmed-mcp-server | Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms. |
| biolit in namespace io.github | io.github.rachadele/biolit | LLM-assisted biomedical literature screening and extraction for PubMed, GEO, and preprints. |
Start of the description from the source registry (first sentence, at most 160 characters), untranslated and unverified
Entries naming UNPAYWALL_EMAIL as a secret required variable
No entry.
What the sources write about this name
| CiteNexus | Optional email for Unpaywall open-access enrichment |
|---|---|
| Data Aggregator | Email address sent to the Unpaywall API; required to enable the Unpaywall PDF fallback leg of literature full-text retrieval. |
| unpaywall in namespace io.github | Your email address — required by the Unpaywall API as an identifier (no API key needed). See https://unpaywall.org/products/api |
| fulltext-article-downloader in namespace io.github | Contact email for Unpaywall and Crossref |
| pubmed-mcp-server in namespace io.github | Contact email for Unpaywall. When set, pubmed_fetch_fulltext falls back to Unpaywall open-access copies for DOIs not in PMC. |
| biolit in namespace io.github | Email address for Unpaywall API access to improve PDF retrieval (optional) |
Taken verbatim from the source, one line per entry. The text is a vendor's own statement and is neither checked nor shortened.
To the environment variable index
Version of the extraction rule: 1.1. The names are formed by splitting the stored original data at the separator this registry set when reading it in. Counted across the 41,867 published entries.
tracevero · https://tracevero.com/variable/UNPAYWALL_EMAIL