World's first literature verification engine designed for medicine and life sciences

Find Verifiable Sources in Seconds. Keep Your Research Defensible.

Back your claims as you write. Verify every reference before you submit.LitSource helps you reduce fabricated, mismatched, and risky citations with traceable literature evidence.

Paste a paragraph from your thesis, a rough hypothesis, or a bold claim here...
Try an example:

Integrated with leading academic databases

PubMedPubMed CentralCrossrefOpenAlexSemantic Scholar

See Rigor Redefined in Action

From sourcing authoritative evidence for your drafts to detecting AI hallucinations in your references. Two core engines make your academic writing completely bulletproof.

Beyond Basic Search. The AI Engine for Serious Research.

Say goodbye to endless scrolling and AI-generated fake citations. From semantic search to instant authenticity verification, we streamline your entire literature workflow to make every claim bulletproof.

Semantic Search That Understands Research

Ditch complex Boolean queries. Paste an entire sentence from your draft—in any language—and let AI instantly grasp your core argument, reverse-matching it to precise literature evidence.

AI Semantic Search
“查找关于幽门螺旋杆菌胃癌发生机制的临床双盲试验...”
匹配真实证据 ↵

Millisecond Triage, Kill AI Hallucinations

Expose ghost citations fabricated by ChatGPT. Batch-paste your reference list and our system cross-validates every DOI and metadata field, intercepting every false and mismatched citation.

!
Smith J. Quantum curing cancer. 2023.
DOI Not Found · AI Hallucination
Warren JR. Unidentified curved bacilli...
100% Verified Source

Sentence-level Extraction, Instant Evidence

Stop drowning in 50-page PDFs. LitSource dives into full-text, extracts and highlights the exact sentences that match your claim, making context crystal clear at a glance.

Findings extracted from full-text:
The overall efficacy was significant.
Particularly in cohorts with high PD-L1 expression levels, the survival rate increased by 34%.
This suggests a new paradigm for treatment.

100M+ Authoritative Literature Data Foundation

Say goodbye to unreliable web search junk. Directly connected to PubMed, CrossRef and other authoritative databases, covering 100M+ rigorously peer-reviewed biomedical papers, including top-tier journals and quality specialty publications.

Source Database
PubMed®CrossRef
Sort PriorityImpact Factor (IF) ⬇
N Engl J Med. (IF: 158.5)

Smart Biomedical Entity Recognition

Powered by a proprietary biomedical model that speed-reads papers and auto-extracts diseases, genes, drugs and populations, building a clear research relationship map in seconds.

We evaluated Pembrolizumab in treating patients with metastatic Non-Small Cell Lung Cancer, correlating with PD-L1 expression...
Drug
Disease
Gene

One-click Access, Seamless Writing Flow

Find it and use it effortlessly. Smart Open Access parsing delivers one-click PDF downloads; instant export to APA, MLA, EndNote formats—ready to cite immediately.

Get PDF
APA
EndNote

How researchers use LitSource

Preparing for case presentations used to be a nightmare. Now I can find evidence-based treatment guidelines in seconds. It literally saved me 10+ hours during my ICU rotation.
C

Clinical researcher

Hospital research team

Writing my thesis was stuck until I found LitSource. The ability to search for methods used in CRISPR off-target analysis and get exact paragraphs is insane. A must-have for any grad student.
G

Graduate researcher

Biomedical PhD program

Preparing for case presentations used to be a nightmare. Now I can find evidence-based treatment guidelines in seconds. It literally saved me 10+ hours during my ICU rotation.
C

Clinical researcher

Hospital research team

Writing my thesis was stuck until I found LitSource. The ability to search for methods used in CRISPR off-target analysis and get exact paragraphs is insane. A must-have for any grad student.
G

Graduate researcher

Biomedical PhD program

Preparing for case presentations used to be a nightmare. Now I can find evidence-based treatment guidelines in seconds. It literally saved me 10+ hours during my ICU rotation.
C

Clinical researcher

Hospital research team

Writing my thesis was stuck until I found LitSource. The ability to search for methods used in CRISPR off-target analysis and get exact paragraphs is insane. A must-have for any grad student.
G

Graduate researcher

Biomedical PhD program

Preparing for case presentations used to be a nightmare. Now I can find evidence-based treatment guidelines in seconds. It literally saved me 10+ hours during my ICU rotation.
C

Clinical researcher

Hospital research team

Writing my thesis was stuck until I found LitSource. The ability to search for methods used in CRISPR off-target analysis and get exact paragraphs is insane. A must-have for any grad student.
G

Graduate researcher

Biomedical PhD program

We use LitSource to screen papers for systematic reviews. The entity highlighting lets us spot exclusion criteria instantly. It's the fastest way to screen 1000+ papers.
R

Review author

Clinical research group

I use it to cross-check First Aid facts with real literature. Seeing the context of clinical trials helps me understand the 'why' behind the guidelines.
M

Medical student

Exam and literature review workflow

We use LitSource to screen papers for systematic reviews. The entity highlighting lets us spot exclusion criteria instantly. It's the fastest way to screen 1000+ papers.
R

Review author

Clinical research group

I use it to cross-check First Aid facts with real literature. Seeing the context of clinical trials helps me understand the 'why' behind the guidelines.
M

Medical student

Exam and literature review workflow

We use LitSource to screen papers for systematic reviews. The entity highlighting lets us spot exclusion criteria instantly. It's the fastest way to screen 1000+ papers.
R

Review author

Clinical research group

I use it to cross-check First Aid facts with real literature. Seeing the context of clinical trials helps me understand the 'why' behind the guidelines.
M

Medical student

Exam and literature review workflow

We use LitSource to screen papers for systematic reviews. The entity highlighting lets us spot exclusion criteria instantly. It's the fastest way to screen 1000+ papers.
R

Review author

Clinical research group

I use it to cross-check First Aid facts with real literature. Seeing the context of clinical trials helps me understand the 'why' behind the guidelines.
M

Medical student

Exam and literature review workflow

In the clinic, I don't have time to read full PDFs. LitSource gives me the exact sentence about drug dosage I need, right when I need it. It's improved my clinical decision confidence.
C

Clinician

Evidence lookup workflow

The API is a lifesaver. I built a script to extract gene-phenotype associations for my dataset. What took manual curation weeks, I did in an afternoon.
B

Bioinformatics researcher

Literature curation workflow

In the clinic, I don't have time to read full PDFs. LitSource gives me the exact sentence about drug dosage I need, right when I need it. It's improved my clinical decision confidence.
C

Clinician

Evidence lookup workflow

The API is a lifesaver. I built a script to extract gene-phenotype associations for my dataset. What took manual curation weeks, I did in an afternoon.
B

Bioinformatics researcher

Literature curation workflow

In the clinic, I don't have time to read full PDFs. LitSource gives me the exact sentence about drug dosage I need, right when I need it. It's improved my clinical decision confidence.
C

Clinician

Evidence lookup workflow

The API is a lifesaver. I built a script to extract gene-phenotype associations for my dataset. What took manual curation weeks, I did in an afternoon.
B

Bioinformatics researcher

Literature curation workflow

In the clinic, I don't have time to read full PDFs. LitSource gives me the exact sentence about drug dosage I need, right when I need it. It's improved my clinical decision confidence.
C

Clinician

Evidence lookup workflow

The API is a lifesaver. I built a script to extract gene-phenotype associations for my dataset. What took manual curation weeks, I did in an afternoon.
B

Bioinformatics researcher

Literature curation workflow

Frequently Asked Questions

Have another question? Contact us at support@raphael.app

How accurate is citation verification? How do you ensure these aren't AI-fabricated?

We don't rely on LLMs to blindly generate results. Instead, we cross-reference your input against PubMed, CrossRef, OpenAlex, Semantic Scholar and other authoritative databases in seconds. Our core algorithm locates and highlights real supporting sentences, eliminating AI hallucinations at the source.

Is my research data and drafts safe on LitSource?

Academic privacy is paramount. LitSource uses end-to-end encrypted transmission (SSL/TLS) to protect your data. Your unpublished drafts, outlines, and search history are never used to train any external public models. You retain full intellectual property rights.

Which databases does LitSource cover? How often is data updated?

We integrate major global databases, covering 100M+ biomedical and life science papers, PMC, CrossRef, and more. Data syncs daily, ensuring the latest publications and Online First research are available for immediate search and verification.

Does it support non-English claims?

Yes. With our built-in bilingual cross-referencing model, you can input claims in Chinese or other languages. The system automatically converts them into precise English search queries to retrieve global literature.

Which reference management tools are compatible?

Export verified references directly to EndNote, Zotero, Mendeley and other major tools, or export in standard BibTeX and RIS formats. We also provide APA, MLA, Harvard, Vancouver, and other standard citation styles.

How are Credits consumed? Am I charged for failed searches?

Each successful multi-angle search or single-paper citation verification costs 1 Credit. Our billing is transparent: if no qualifying results are found, no credits are deducted.

Is there a free tier? How do I get more credits?

New users receive 10 free Credits upon registration. For higher usage, we offer monthly subscription plans (great value for ongoing research) and flexible one-time credit packs with no expiration.

Make Every Citation Defensible Before You Submit.

Experience AI-driven research rigor. Whether finding sources from scratch or verifying authenticity, start reshaping your workflow today.

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LitSource - Find Citations in Seconds