citation_count
ActiveTool of Opencitations
"How many times has paper [DOI] been cited" / "citation count for [paper]" / "is [study] highly cited" — incoming citation count for a DOI. Fast version of `citations` when you only need the number, not the citing DOIs.
Parameters schema
{
"type": "object",
"examples": [
{
"doi": "10.1038/nature12345"
}
],
"required": [
"doi"
],
"properties": {
"doi": {
"type": "string"
}
}
}No endpoints wrapped at confidence ≥ 0.70.
Parent server
Opencitations
https://github.com/pipeworx-io/mcp-opencitations
1/7 registries