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$1.00 / 1,000 reference checkeds

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Reference List Verifier: Crossref DOI Checker

Try for free

Paste a bibliography and find the closest Crossref or OpenAlex record for each reference: DOI, match status and score, retraction or correction flag from Crossref. Pay per reference.

Pricing

$1.00 / 1,000 reference checkeds

Rating

0.0

(0)

Developer

Mohammed Samaan

Actor stats

Bookmarked

Total users

Monthly active users

4 days ago

Last modified

Categories

Developer tools

References

references

Optional

One reference per entry, in any citation style (APA, Vancouver, IEEE, Harvard...). A DOI inside the text is checked directly. Up to 500 per run, combined with the pasted text below.

Type:array

Or paste a whole bibliography

text

Optional

Paste the reference list as it appears in your document. It is split on blank lines, on numbering such as [1], (1), 1. or 1), and on one reference per line; wrapped and indented continuation lines are joined. Up to 500 references per run.

Type:string

Your contact email (optional, recommended)

mailto

Optional

Sent to Crossref and OpenAlex as their 'polite pool' contact, so they can reach you if your traffic causes trouble. With it the actor checks 3 references at a time; without it, Crossref's public pool allows one at a time, so large lists run slower. Never stored by this actor.

Type:string

Minimum score for 'probable'

minScore

Optional

Candidates scoring below this are reported as not_found. 'matched' always needs a score of at least 0.85 plus title, author and year agreement. Raise it for fewer, safer 'probable' answers.

Type:number

Minimum:0.3

Maximum:0.95

Default:0.6

Use OpenAlex as a fallback

useOpenAlex

Optional

When Crossref finds no close record, ask OpenAlex (CC0 data). OpenAlex gives no retraction information, so the retraction flag stays null for those rows.

Type:boolean

Default:true

OpenAlex API key (optional)

openalexApiKey

Optional

Free key from openalex.org. Without one, OpenAlex shares a small daily budget per network address, and the fallback may report 'openalex_unavailable' in warnings.

Type:string

OpenAlex Research Scraper - Papers, Authors & Citations

thirdwatch/openalex-research-scraper

Search OpenAlex scholarly works and export DOI, title, authors, institutions, abstract, citations, topics, open-access status, publication data, and source links. Built for research and data pipelines. No login, cookies, or API keys — clean JSON output and pay-per-result pricing.

Thirdwatch

PubMed Biomedical & Clinical Research Scraper

litezero/pubmed-medical-research-scraper

Extract 36M+ biomedical research papers, clinical trial citations, journal abstracts, medical authors, and DOI links from PubMed NCBI.

LiteZero

WeChat Article to Clean Markdown & JSON Extractor

knightwwang/wechat-article-to-markdown

Convert WeChat Official Account articles (mp.weixin.qq.com) into clean Markdown with embedded images, author info, publish date, and AI-ready tokens.

knightwwang Wang

อัปเดตหนังใหม่ล่าสุดอัปเดตหนังใหม่ล่าสุด42333

testers2122/apedthnangaihmlaasud-apedthnangaihmlaasud42333

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andzar cireng

Bulk Domain Lookup: RDAP, DNS, SPF, DMARC & DKIM

signalscouter/bulk-domain-lookup

Check thousands of domains in one run: registrar, creation and expiry dates, status and nameservers from official RDAP (the WHOIS successor), A/MX/NS/TXT records, SPF, DMARC, DKIM selectors and mail provider. No personal data: registrant contacts are removed.

Signal Scout

Bulk Domain Availability Checker – RDAP, WHOIS & DNS

tesselyn/domain-availability-checker

Check if domains are available or registered, in bulk, from official registry RDAP data (WHOIS/DNS fallback). Registrar and dates; unknown results are free.

Tesselyn

Domain Availability Checker & RDAP Lookup (1,100+ TLDs)

lathewright/domain-availability-rdap

Returns whether domains are registered plus registry facts (registrar, creation and expiry dates, status codes, nameservers, DNSSEC) from authoritative RDAP servers for 1,100+ TLDs. Expand names across TLDs to find free ones. No WHOIS scraping, no personal data.

lathewright LLC

Fake Reference Checker - Find Hallucinated & Retracted Papers

that_red_bird/fake-reference-checker

Paste a bibliography, BibTeX or DOI list. Each reference is checked against Crossref, OpenAlex, DataCite and PubMed and marked found, mismatched or not found, with retracted, corrected and expression-of-concern flags. No API key. Books and very new papers can be missing.

mohamed alaya

Shopify Store Auditor: SEO & Product Catalog Audit

siftwright_data/shopify-store-auditor

Audit any Shopify store's catalog: thin or missing descriptions, images without alt text, duplicate titles, zero prices, missing product types and tags. 0-100 score per store plus every flagged product. No login or app needed.

Siftwright Data

Brazil IBGE Municipalities & State Geodata Directory API

prepared_crispbread/brazil-ibge-municipalities-geodata

Retrieves official IBGE 7-digit municipality codes and city directories by Brazilian state (UF) via BrasilAPI for tax issuance (NFS-e/NF-e), logistics routing, and regional B2B intelligence.