citation-checker vs Perplexity API Platform
citation-checker is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑24.
citation-checker is a plugin bundle for AI coding tools published by Babak Naderi. No marketplace we read lists it any more. Perplexity API Platform is an MCP server published by perplexity.ai. Marketplaces we read that list it: 4 (Official MCP Registry, Docker MCP Catalog, npm registry (MCP servers), Community GitHub marketplaces). As of our marketplace pass on 2026-10-28. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |   Perplexity API Platform | |
|---|---|---|
| Community marketplace babaknaderi/citation-checker | Removed on 2026-10-24 Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 8 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.2.1 Downloads/month (npm): 87 686 Downloads/week (npm): 18 636 Not marked · First seen |
| Docker MCP Catalog | Not listed | Listed Version: sha256:7816f45a6f26 Forks (GitHub): 388 Pulls (Docker Hub): 81 028 Stars (Docker Hub): 17 Stars (GitHub): 2 589 Not marked · First seen |
| npm registry (MCP servers) | Not listed | Listed Version: 1.3.0 Downloads/month (npm): 87 686 Downloads/week (npm): 18 636 Forks (GitHub): 389 Stars (GitHub): 2 592 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | citation-checkerno longer listed · | Perplexity API Platform |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 4 |
| Stars (GitHub) (differs) | 8 | 2 592 |
| Pulls (Docker Hub) (differs) | No figure on Docker Hub | 81 028 |
| Forks (GitHub) (differs) | 0 | 389 |
| Last release (differs) | Not published | 2026-10-17 |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (@perplexity-ai/mcp-server) |
| Transport (differs) | Not stated | stdio |
| Tools it declares (differs) | Not published | 3 |
| Environment variables it asks for (differs) | Not published | 2, secrets among them: 1 |
| Hooks it runs (differs) | Not published | 1 |
| Parts of the bundle (differs) | 1 | 2 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/babaknaderi/citation-checker | github.com/ppl-ai/modelcontextprotocol |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of citation-checker
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Flag hallucinated references, authors and bib items in any paper — your own draft before submitting, or one you are reviewing — and correct badly formatted ones. Resolves every…
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Checks every LaTeX reference against Crossref, dblp, arXiv, DataCite, PubMed and OpenAlex. No LLM.
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Paste a bibliography or a single reference and find out whether the papers are real.
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Claude Code skill that verifies BibTeX entry content against Google Scholar and CrossRef.
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Verify academic citations against real databases. Catches hallucinated references, exports BibTeX.
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AEGIS Academic Integrity Checker
Local-first paper integrity checks: hallucinated citations, AI-text, plagiarism, venue guidelines.
What each says it does
citation-checker
Audits LaTeX citations, cited-source metadata, and claim-to-source alignment.
Perplexity API Platform
Real-time web search, reasoning, and research through Perplexity's API
How to run each
citation-checker
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Perplexity API Platform As a local MCP server: npm package
claude mcp add --transport stdio perplexity-api-platform -- npx -y @perplexity-ai/mcp-serverCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of citation-checker publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of citation-checker publish no settings it asks for, so we do not compare settings.
What it can do: citation-checker · What it can do: Perplexity API Platform · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.