# getEuropePmcCitations

**Identifier:** `europepmc_getEuropePmcCitations`

**Provider:** [Europe PMC](https://kirha.com/providers/europepmc.md)

List the articles that cite a paper (citedBy) or the papers it cites (references), from Europe PMC's citation network, including preprints. Sort citing papers by most cited to find the influential follow-up work. Returned ids chain into getArticle, findEuropePmcPassages or pubmed-mcp (PMIDs).

## Run it with the CLI

```bash
kirha tools run europepmc_getEuropePmcCitations \
  --input '{
    "id": "<id>"
  }'
```

`--input` takes a JSON object that matches the input schema. Pass `--input -` to read it from stdin.

## Call it over HTTP

```bash
curl https://api.kirha.com/tools/v1/execute \
  --request POST \
  --header 'Content-Type: application/json' \
  --header 'Authorization: **********' \
  --data '{
  "tool_name": "europepmc_getEuropePmcCitations",
  "input": {
    "id": "<id>"
  }
}'
```

Replace the stars with an API key from https://app.kirha.com/api-keys.

## Input schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "direction": {
      "default": "citedBy",
      "enum": [
        "citedBy",
        "references"
      ],
      "type": "string"
    },
    "id": {
      "description": "Article id from searchArticles or getArticle, a PMID, PMCID, PPR preprint id or DOI",
      "minLength": 1,
      "type": "string"
    },
    "limit": {
      "default": 25,
      "maximum": 100,
      "minimum": 1,
      "type": "integer"
    },
    "page": {
      "default": 1,
      "maximum": 9007199254740991,
      "minimum": 1,
      "type": "integer"
    },
    "sort": {
      "default": "source_order",
      "enum": [
        "source_order",
        "most_cited",
        "newest"
      ],
      "type": "string"
    }
  },
  "required": [
    "id"
  ],
  "type": "object"
}
```

## Output schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "properties": {
    "articles": {
      "items": {
        "additionalProperties": false,
        "properties": {
          "authors": {
            "type": "string"
          },
          "citedByCount": {
            "type": "number"
          },
          "doi": {
            "type": "string"
          },
          "id": {
            "description": "Id for getArticle (PMID for MEDLINE); absent for references Europe PMC could not match",
            "type": "string"
          },
          "publicationType": {
            "type": "string"
          },
          "title": {
            "type": "string"
          },
          "venue": {
            "type": "string"
          },
          "year": {
            "type": "number"
          }
        },
        "type": "object"
      },
      "type": "array"
    },
    "context": {
      "type": "string"
    },
    "hasMore": {
      "type": "boolean"
    },
    "ids": {
      "items": {
        "type": "string"
      },
      "type": "array"
    },
    "totalCount": {
      "type": "number"
    }
  },
  "required": [
    "context",
    "totalCount",
    "articles",
    "ids",
    "hasMore"
  ],
  "type": "object"
}
```

## Related tools

Other Europe PMC tools that this tool refers to, or that refer to it.

- [`findEuropePmcPassages`](https://kirha.com/providers/europepmc/findEuropePmcPassages.md)
- [`getArticle`](https://kirha.com/providers/europepmc/getArticle.md)
- [`searchArticles`](https://kirha.com/providers/europepmc/searchArticles.md)

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