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from $33.50 / 1,000 metadata qa checks

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Crossref DOI Metadata QA

Try for free

A per-DOI QA verdict from official Crossref metadata — each DOI returns valid, not_found, or metadata_incomplete with every missing required field named. Billed per definitive verdict.

Pricing

from $33.50 / 1,000 metadata qa checks

Rating

0.0

(0)

Developer

NexGen Watch

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Monthly active users

20 hours ago

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Developer tools

You can access the Crossref DOI Metadata QA programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1from apify_client import ApifyClient
2
3# Initialize the ApifyClient with your Apify API token
4# Replace '<YOUR_API_TOKEN>' with your token.
5client = ApifyClient("<YOUR_API_TOKEN>")
6
7# Prepare the Actor input
8run_input = {
9    "dois": [
10        "10.1038/nphys1170",
11        "https://doi.org/10.1145/3292500.3330701",
12        "10.9999/nonexistent-zzz-000",
13        "not-a-doi",
14    ],
15    "requiredFields": [
16        "title",
17        "author",
18        "issued",
19        "type",
20        "container-title",
21        "publisher",
22    ],
23}
24
25# Run the Actor and wait for it to finish
26run = client.actor("nexgenwatch/crossref-doi-metadata-qa").call(run_input=run_input)
27
28# Fetch and print Actor results from the run's dataset (if there are any)
29print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
30for item in client.dataset(run.default_dataset_id).iterate_items():
31    print(item)
32
33# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

Crossref DOI Metadata QA API in Python

The Apify API client for Python is the official library that allows you to use Crossref DOI Metadata QA API in Python, providing convenience functions and automatic retries on errors.

Install the apify-client

$pip install apify-client

Other API clients include:

Crossref DOI Metadata QA API in JavaScript

Crossref DOI Metadata QA API through CLI

Crossref DOI Metadata QA OpenAPI definition

Crossref DOI Metadata QA API

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scrupulous_waterbird_m4w/crossref-doi-metadata

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Scrapes Crossref publication metadata by search query, title, author, or specific DOI. Returns each work as a flat row with title, authors, container, publication date, and DOI.

ParseForge

5.0

(1)

Crossref Scholar Metadata Scraper

wakey7dev/crossref-scholar-scraper

Query Crossref for DOI metadata — titles, abstracts, authors, journals, citations, funding. 150M+ scholarly works. Academic research, bibliometrics, literature reviews.

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Crossref Scraper — Scholarly Works, DOIs & Citations

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Bulk-scrape scholarly works from Crossref's 150M+ record index: DOI, title, authors (with ORCID), journal, publisher, publication date, citation count, references, ISSN, subjects and abstract. Full-text search, date and type filters, thousands of results per run. No setup.

hiper soft

Crossref Scraper | 13 Fields, 50K Works/Run, No API Key

themineworks/crossref-scholarly-metadata

Scrape 150M+ scholarly works from Crossref: DOIs, authors, journals & citation counts by topic, year and type. Clean structured JSON for bibliometrics, literature reviews and RAG. No API key. Use it as an MCP server in Claude, ChatGPT & AI agents.

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Researchgpt Deep Research Agent

wheat_tourist/researchgpt-deep-research-agent

🔬 Transform any topic into a comprehensive research report in minutes! Scrapes Wikipedia, arXiv, Semantic Scholar, news & web sources. Outputs professional JSON, HTML & PDF reports. Perfect for students, researchers, content creators & businesses. No API keys needed.