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Unpaywall MCP — open-access lookup for scholarly papers (free, no key)
Unpaywall 是 ChatHome Skills 收录的 MCP 条目，来源为 Official MCP Registry，质量分 97/100。 本目录收录的仓库是 pipeworx-io/mcp-unpaywall。下面的命令是来源记录的原文，并不能证明每个客户端都能一键完成安装。MCP 服务器向客户端暴露可调用的工具；agent 技能是一组可复用的指令。此条目是MCP 服务器。该条目由 ChatHome Skills 的每日抓取从官方 registry 和 GitHub 发现查询中收录，每次运行都会重新核验仓库事实、新鲜度信号和安装元数据。 质量分综合了官方 registry 收录情况、可用安装命令、许可证完整性、仓库活跃度和 GitHub star 趋势，完整算法说明见来源页。在将 Unpaywall 加入生产 agent 工作流前，请核对仓库推送日期和仓库状态——下方事实快照是最近一次抓取的时点值。
mcp add io.github.pipeworx-io/unpaywall https://gateway.pipeworx.io/unpaywall/mcp下面的命令是来源记录的原文，并不能证明每个客户端都能一键完成安装。
运行此命令前，请先核对上游源码。
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-11-06T01:56:37.17249Z",
"publishedAt": "2026-11-06T01:56:37.17249Z",
"statusChangedAt": "2026-11-06T01:56:37.17249Z"
}
},
"server": {
"name": "io.github.pipeworx-io/unpaywall",
"title": "Unpaywall",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://gateway.pipeworx.io/unpaywall/mcp",
"type": "streamable-http"
}
],
"version": "0.2.1",
"packages": [
{
"version": "0.2.1",
"transport": {
"type": "stdio"
},
"identifier": "@pipeworx/mcp-unpaywall",
"registryType": "npm",
"environmentVariables": [
{
"name": "PIPEWORX_API_KEY",
"isSecret": true,
"description": "Optional Pipeworx API key. Without it calls are anonymous and capped daily; a free key raises the cap."
}
]
}
],
"repository": {
"url": "https://github.com/pipeworx-io/mcp-unpaywall",
"source": "github"
},
"websiteUrl": "https://pipeworx.io/packs/unpaywall",
"description": "Unpaywall MCP — open-access lookup for scholarly papers (free, no key)"
}
}