Paper Details

Look up one scholarly work by DOI or OpenAlex id: authors and institutions, venue, open-access status and PDF, citations, topics and abstract.

Pay by wallet (x402) paper-details

Example

Input

{
  "doi": "10.1038/s41586-020-2649-2"
}

Answer

{
  "doi": "https://doi.org/10.1038/s41586-020-2649-2",
  "type": "article",
  "title": "Array programming with NumPy",
  "venue": "Nature",
  "topics": [
    "Computational Physics and Python Applications"
  ],
  "authors": [
    {
      "name": "Charles R. Harris",
      "orcid": null,
      "institutions": []
    }
  ],
  "pdf_url": "https://www.nature.com/articles/s41586-020-2649-2.pdf",
  "abstract": "Array programming provides a powerful, compact and expressive syntax for accessing, manipulating and operating on data...",
  "keywords": [
    "Python (programming language)"
  ],
  "language": "en",
  "venue_type": "journal",
  "openalex_id": "https://openalex.org/W3035965352",
  "author_count": 26,
  "is_retracted": false,
  "cited_by_count": 23533,
  "is_open_access": true,
  "landing_page_url": "https://doi.org/10.1038/s41586-020-2649-2",
  "publication_date": "2020-09-16",
  "publication_year": 2020,
  "open_access_status": "hybrid",
  "referenced_works_count": 41
}

Inputs

Field	Type	Required	What it is
`doi`	string	Yes	A DOI (10.1038/s41586-020-2649-2 or https://doi.org/...), or an OpenAlex work id such as W3035965352

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`title`	string	Always (present in every successful answer)
`venue`	string	Usually (present for most inputs)
`authors`	array	Always (present in every successful answer)
`abstract`	string	Usually (present for most inputs)
`openalex_id`	string	Always (present in every successful answer)
`author_count`	number	Always (present in every successful answer)
`cited_by_count`	number	Always (present in every successful answer)
`is_open_access`	boolean	Always (present in every successful answer)
`publication_year`	number	Always (present in every successful answer)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "paper-details",
    "inputs": {
      "doi": "10.1038/s41586-020-2649-2"
    },
    "max_price_cents": 2
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "paper-details",
    "inputs": {
      "doi": "10.1038/s41586-020-2649-2"
    },
    "max_price_cents": 2
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "paper-details",
  inputs: {
    "doi": "10.1038/s41586-020-2649-2"
  },
  max_price_cents: 2,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="paper-details",
    inputs={
        "doi": "10.1038/s41586-020-2649-2",
    },
    max_price_cents=2,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i -X POST https://api.strale.io/x402/v2/paper-details \
  -H 'Content-Type: application/json' \
  -d '{
    "doi": "10.1038/s41586-020-2649-2"
  }'

Limitations

Works without a DOI can only be fetched by OpenAlex id
Book chapters, datasets and older articles frequently have no DOI; find their OpenAlex id with academic-paper-search first.
What to do instead: Search by title with academic-paper-search and pass the returned openalex_id.
Abstracts and venue details can be missing
Many publishers do not licence abstracts to OpenAlex; `abstract` and occasionally `venue` are then null.
What to do instead: Follow landing_page_url or pdf_url for the full record.