Pricing

from $4.00 / 1,000 reference checkeds

Citation Checker: Find Fake References and Check DOIs

Check reference lists against Crossref, DataCite and OpenAlex. Each reference is verified, mismatch (with the fields that differ), not found (possibly made up) or ambiguous, with DOI, retraction flag, open-access link and a corrected APA or BibTeX citation.

Pricing

from $4.00 / 1,000 reference checkeds

Rating

0.0

(0)

Developer

Plainsource

Actor stats

Bookmarked

Total users

Monthly active users

5 days ago

Last modified

Email Validator API - Verify, Disposable Check, MX

george.the.developer/email-validator-api

Validate email addresses and check if an email is valid and deliverable: MX record verification, SMTP checks, disposable email detection, free-provider and role-based flags. Clean email lists before outreach. 400+ disposable domains covered.

George Kioko

Bulk Email Validator — MX, Format & Disposable Check

maged120/email-validator

Validate email addresses in bulk. Checks format validity, domain existence, MX record resolution, and disposable email domain detection — clean your mailing list before sending.

Maged

WhatsApp Number Checker

maged120/whatsapp-number-checker

Verify WhatsApp registration for up to 100 numbers per run — no account, no QR code, no ban risk. Paste your numbers and get instant active/inactive results.

Maged

191

Email Breach Checker – Check If Your Email Was Hacked

sian.agency/email-breach-checker

Check any email or username against indexed public breach records: breach sources, exposed password sightings and hashes per credential. Bulk lists. Pay per check.

SIÁN OÜ

AI Citation Tracker — ChatGPT & Perplexity Sources

muhammadafzal/ai-citation-monitor

Track which domains and URLs ChatGPT, Perplexity, Claude and Gemini cite for your prompts, your citation rate and gained or lost sources. USD 0.04-0.05/check.

Muhammad Afzal

Domain Availability Checker

ozito/domain-availability-checker

Fast, reliable domain availability checker using RDAP with automatic WHOIS fallback. Check one domain across up to 10 TLDs in a single request. Supports .com, .net, .org, .io, .ai, .dev, .app + custom RDAP endpoints. Structured JSON output with status, source & response time.

Kal

PubMed Citation Scraper

parseforge/pubmed-citation-scraper

Scrapes PubMed citations and abstracts by search query, author, journal, or direct URL. Returns each paper's title, authors, abstract, and publication metadata as a flat row.

ParseForge

5.0

(1)

DataCite DOI Scraper - Research Metadata Search

benthepythondev/datacite-doi-scraper

Search DataCite DOI metadata for titles, creators, publishers, resource types, subjects, abstracts, dates and canonical DOI links.

Ben

Email Validator Pro — Bulk SMTP & Deliverability Check

accurate_pouch/email-validator

Validate emails in bulk with SMTP mailbox check, disposable detection, catch-all flagging, deliverability scoring, and typo suggestions. 20 emails free per run.

Manchitt Sanan

Crossref DOI Scraper - Scholarly Metadata & Citations

thirdwatch/crossref-doi-scraper

Search Crossref or resolve exact DOIs. Export titles, authors, publishers, journals, publication dates, citation counts, ISSNs, ISBNs, licenses, and DOI links. Built for research and data pipelines. No login, cookies, or API keys — clean JSON output and pay-per-result pricing.