Crossref
Rank #7,818io.github.cyanheads/crossref-mcp-server
Searches and retrieves scholarly publication metadata, DOI records, citation counts, and funding information via the Crossref API.
Crossref is a Model Context Protocol (MCP) server published by cyanheads. It ranks #7,818 of 77,308 servers tracked on MCP Toplist, and its repository has 2 GitHub stars. Crossref is listed across 2 registries — Official MCP and PulseMCP, with 3 tracked versions. It was first listed on May 24, 2026 and most recently updated on Jun 20, 2026.
Ranks ahead of 69,490 of 77,308 servers on MCP Toplist.
Use Crossref
Add Crossref to any MCP client (Claude, Cursor, VS Code, …) with one of the configs below.
{
"mcpServers": {
"crossref-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/crossref-mcp-server"
],
"env": {
"CROSSREF_MAILTO": "<your CROSSREF_MAILTO>",
"CROSSREF_BASE_URL": "<your CROSSREF_BASE_URL>",
"CROSSREF_TIMEOUT_MS": "<your CROSSREF_TIMEOUT_MS>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Replace each placeholder with your own value before saving.
{
"mcpServers": {
"crossref-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/crossref-mcp-server"
],
"env": {
"CROSSREF_MAILTO": "<your CROSSREF_MAILTO>",
"CROSSREF_BASE_URL": "<your CROSSREF_BASE_URL>",
"CROSSREF_TIMEOUT_MS": "<your CROSSREF_TIMEOUT_MS>",
"MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
"MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
"MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
"MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.cyanheads%2Fcrossref-mcp-server)<a href="https://mcptoplist.com/server/io.github.cyanheads%2Fcrossref-mcp-server"><img src="https://mcptoplist.com/badge/io.github.cyanheads%2Fcrossref-mcp-server.svg" alt="MCP Toplist: Top 25% of 77,308" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry (1 delisted)
cyanheads
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Available versions (3)
| Version | Published |
|---|---|
| 0.1.16 | Jun 20, 2026 |
| 0.1.15 | Jun 16, 2026 |
| 0.1.7 | May 24, 2026 |
Frequently asked questions
- Who maintains Crossref?
- Crossref is maintained by cyanheads, which publishes 129 MCP servers (821 total versions) tracked on MCP Toplist.
- Is Crossref listed on the Official MCP Registry?
- Yes — Crossref is listed on the Official MCP Registry, alongside PulseMCP.
- How many versions does Crossref have?
- MCP Toplist tracks 3 versions of Crossref, most recently published on Jun 20, 2026.
- Where can I find the source code for Crossref?
- The source code for Crossref is hosted at github.com/cyanheads/crossref-mcp-server.