io.github.SMABoundless/unpaywall
Open-access availability for 120M+ scholarly articles via the Unpaywall API
MCP server · by SMABoundless
About
io.github.SMABoundless/unpaywall is an MCP server published by SMABoundless. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.
What it asks for
- Runs on your machine
- Settings: 1
Requires: UNPAYWALL_EMAIL
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: PyPI package
Built from what Official MCP Registry declares.
claude mcp add --env "UNPAYWALL_EMAIL=<YOUR_UNPAYWALL_EMAIL>" --transport stdio unpaywall -- uvx unpaywall-mcp-server[mcp_servers.unpaywall]
command = "uvx"
args = ["unpaywall-mcp-server"]
[mcp_servers.unpaywall.env]
UNPAYWALL_EMAIL = "<YOUR_UNPAYWALL_EMAIL>"{
"mcpServers": {
"unpaywall": {
"command": "uvx",
"args": [
"unpaywall-mcp-server"
],
"env": {
"UNPAYWALL_EMAIL": "<YOUR_UNPAYWALL_EMAIL>"
}
}
}
}Replace the values in angle brackets with your own. We show the names of the settings, never values.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.1 | Forks (GitHub): 0 Stars (GitHub): 0 |
Not marked |
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.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
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Unpaywall MCP — open-access lookup for scholarly papers (free, no key)
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scholar io.github.mlintangmz2765/scholar
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core-mcp io.github.mrfentmen/core-mcp
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arXiv, PubMed, Crossref and OpenAlex scholarly metadata.
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Search open-source research papers across arXiv, OpenAlex, Crossref, PubMed, Semantic Scholar.
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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
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Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.