Fact-check with real sources.

Primary Source Finder helps you verify claims and understand any topic faster with reputable sources and built-in fact-checking. Search a question, explore sources in seconds, or ask Sofia to compare evidence and explain what holds up.

Preview

Find sources. Verify claims. Learn faster.

1. Search

Search a topic, ask a question, or paste a claim. Primary Source Finder surfaces reputable sources fast so you can start with evidence.

2. Find

Get the original link, related coverage, cited articles, and reputable sources with citations and source details so you can follow the trail.

3. Learn

Use guided learning for context, or ask Sofia for deep analysis, real-time fact-checking, and source comparisons grounded in evidence.

Designed for fact-checking and source-based learning in minutes

Get context, evidence, and source links you can actually follow.

Great For!
Writing & Research
  • -Build a credible source list fast for papers and projects.
  • -Turn key takeaways into an outline in minutes.
  • -Ask Sofia to compare sources and strengthen your thesis.
Great For!
Fact-checking
  • -Check what a source actually says, not just the headline.
  • -Run bias and fact checks to assess reliability and verify claims.
  • -Ask Sofia to trace claims back to evidence and flag what’s missing.
Great For!
Creators
  • -Pull clean context fast, including timelines and key takeaways.
  • -Ask Sofia for source-backed angles, scripts, and summaries.
  • -Spot weak claims and misleading framing before you publish.
Great For!
Debates
  • -Map the timeline and strongest evidence on each side.
  • -Spot framing, omissions, and loaded language.
  • -Ask Sofia to pressure-test claims and build rebuttals.
Great For!
Journalism
  • -Extract key points, names, dates, and quotes quickly.
  • -Verify claims across multiple sources.
  • -Ask Sofia to synthesize findings into defensible takeaways.
Great For!
Teachers
  • -Build lesson-ready source packs with context.
  • -Create quizzes and flashcards for active recall.
  • -Ask Sofia for discussion prompts grounded in sources.
Great For!
Investigations
  • -Organize evidence into a clear timeline.
  • -Cross-check claims and corroborate sources.
  • -Ask Sofia to connect dots and flag weak links.
Great For!
Researchers
  • -Run structured analysis across sources.
  • -Use historiography and deep dives for competing interpretations.
  • -Ask Sofia to compare interpretations and refine your thesis.
Great For!
General
  • -Understand any topic with source-backed context.
  • -Get clearer answers with bias and fact checks.
  • -Ask Sofia for explanations, comparisons, and next questions.
Great For!
Policy & Legal
  • -Break down dense policy and legal sources.
  • -Assess framing, claims, and supporting evidence.
  • -Ask Sofia to compare policies and summarize legal implications.

Beta access

Get invited to the beta and help me improve Primary Source Finder with your feedback.

What you get in beta

Full access during beta, priority invites, and a direct line for feedback.

  • Free during beta while I improve the product
  • Help shape the product with feedback
  • Pricing will be set after I learn from usage

FAQ

Frequently asked questions

What types of sources can I find?

Primary Source Finder helps you discover a wide range of primary and secondary sources, including historical documents, academic papers, news coverage, and government records. When available, it includes links to reputable repositories so you can follow the sources yourself.

Can I access the original documents through Primary Source Finder?

Primary Source Finder helps you discover sources and understand what they say, but it doesn't host the original documents. When possible, it provides links to repositories where you can access the originals. For physical archives, it includes location details to guide your next steps.

How accurate is the AI research assistant?

Sofia is designed to help you reason about sources, but like any AI, it can make mistakes. For anything important, verify the conclusions against the sources. Quality improves continuously based on feedback.

Can I export my research findings?

You can save key takeaways and source notes as you work. Export options are evolving during beta as the product learns what formats users need most.

Is there a limit to the number of searches?

Limits can apply depending on your plan and where you are in the beta. The goal is to keep access affordable while managing compute costs.

How do you ensure source authenticity?

Primary Source Finder prioritizes reputable repositories and includes source metadata when available. Because sources vary in quality online, it encourages you to cross-check provenance (who created it, where it came from, and how it has been preserved) before relying on it.

Primary Source Finder

Still have questions?

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Find sources and verify claims in minutes

Get clearer answers by following evidence, checking reliability, and learning the context.