
Cite This For Me
Citation Machine
Citation Generator
ZoteroBib
Scribbr Citation Checker
Formatically EDU
Instant Citation Tool by Formatically
Scholar Sidekick resolves DOIs, PMIDs, ISBNs & arXiv IDs into citations (APA, Vancouver, IEEE, 10,000+ CSL styles), verifies citations to catch AI fabrication, and checks retraction & open access. Free web, REST API, Chrome extension, MCP server.

Create ChatGPT Application in seconds

Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | scholar-sidekick.com | open-gpt.app |
| Pricing | — | |
| Platforms | — | |
| Company | 2025 | — |
| Listed in | — |
In their own words, as submitted to SaaSHub.


Scholar Sidekick is a fast, deterministic citation resolver, formatter, exporter, and verifier - built for researchers, clinicians, students, librarians, and AI agents. Paste any scholarly identifier - DOI, PMID, PMCID, ISBN, ISSN, arXiv ID, ADS bibcode, or a WHO IRIS URL - and it fetches the...
No description of https://open-gpt.app/ yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Scholar Sidekick and https://open-gpt.app/.
Scholar Sidekick's answer
Scholar Sidekick is identifier-first. Most citation tools want you to paste a URL or hand-fill a form; Scholar Sidekick takes a DOI, PubMed ID, PMCID, ISBN, ISSN, arXiv ID, ADS bibcode, or WHO IRIS URL and resolves it directly against authoritative sources (Crossref, PubMed, arXiv, Open Library, ADS).
It's also one of the only citation tools to combine free web tools, a documented REST API, a Chrome extension, and an open-source MCP server in one product - letting humans, scripts, and AI agents (like Claude) all pull citations from the same engine. Outputs are deterministic, with provenance headers showing exactly which style was used, whether it was cached, and whether any fallback occurred.
Scholar Sidekick's answer
Scholar Sidekick's answer
Scholar Sidekick's answer
Scholar Sidekick started from a simple frustration: existing citation generators are either slow, ad-heavy, or limited to pasting article URLs and hoping the metadata is correct. None of them handled scholarly identifiers (DOI, PMID, arXiv) cleanly, and none exposed a modern API or could be called by an AI agent.
So Scholar Sidekick was built around three principles: identifier-first input, deterministic output, and open access. Free for humans on the web, free for AI agents via an open-source MCP server, and a modest paid tier for developers who need higher API volume. The goal isn't to be a flashy citation tool - it's to be the boring, reliable piece of citation infrastructure that just works.
Scholar Sidekick's answer
Share your experience with using Scholar Sidekick and https://open-gpt.app/. For example, how are they different and which one is better?
When comparing Scholar Sidekick and https://open-gpt.app/, you can also consider the following products.

Cite This For Me is a website that creates citations for papers. Citations are a necessary part of the academic process, and learning how to cite a source is a staple of English classrooms everywhere. Read more about Cite This For Me.
Compare Cite This For Me to Scholar Sidekick or https://open-gpt.app/:

Reference management software
Compare Citation Machine to Scholar Sidekick or https://open-gpt.app/:
Mick Schroeder’s automatic citation generator. Create a bibliography from a URL, PubMed ID, DOI, ISBN, etc… Style with AMA, APA, APA, NLM, + 9000 more.
Compare Citation Generator to Scholar Sidekick or https://open-gpt.app/:

ZoteroBib is a free service to help people quickly create bibliographies without installing any...
Compare ZoteroBib to Scholar Sidekick or https://open-gpt.app/:

Automatically detect and resolve APA citation errors
Compare Scribbr Citation Checker to Scholar Sidekick or https://open-gpt.app/:

A simple, beautiful, and fast citation manager for teachers
Compare Formatically EDU to Scholar Sidekick or https://open-gpt.app/: