OpenAlex scholarly metrics (work or author) API

Look up a scholarly WORK (by DOI or OpenAlex ID) or an AUTHOR (by ORCID or OpenAlex ID) on OpenAlex and return normalized metrics: for works, citation count, year, venue, open-access status and weighted concepts; for authors, works count, total citations, h-index, i10-index and top concepts. The value-add is collapsing OpenAlex's large objects into the few metrics that matter. Answers 'how many citations does this paper have', 'h-index of this author', 'what concepts is this work about', 'is this paper open access'.

Price$0.01per request

MethodPOST

Route/v1/data/openalex

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache3600s public

dataopenalexcitationsh-indexscholarlymetricsbibliometricsconcepts

API URLhttps://x402.hexl.dev/v1/data/openalex

Integration docs

Example request

{
  "id": "A5023888391",
  "type": "author"
}

Example response

{
  "kind": "author",
  "id": "https://openalex.org/A5023888391",
  "orcid": null,
  "name": "Jason R Priem",
  "worksCount": 67,
  "citationCount": 4418,
  "hIndex": 18,
  "i10Index": 21,
  "meanCitedness2yr": 4,
  "institutions": [],
  "topConcepts": [
    {
      "name": "Computer science",
      "score": 90
    },
    {
      "name": "World Wide Web",
      "score": 50
    }
  ]
}

Input schema

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "examples": [
        "10.7717/peerj.4375",
        "A5023888391"
      ]
    },
    "type": {
      "type": "string",
      "enum": [
        "work",
        "author"
      ],
      "examples": [
        "author"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}