Stuck on what to write your thesis about? Start by exploring, not deciding.

purposed.in is a free, growing map of academic and professional topics, key words, and keyphrases — each one comes with a short orientation, an 8-point navigation tree of related angles, and (where it exists) real papers pulled live from OpenAlex with open-access PDF links. Wander until something clicks, then turn it into a thesis with verified Crossref citations and a one-click BibTeX export for Zotero, EndNote, or Mendeley.

Start browsing topics → Verify a DOI →

Search or browse

Use the search bar above, or open the Node Browser to wander an 8-point tree of topics, word studies, and keyphrases.

Read the related literature

Every node can pull recent papers from OpenAlex, with free PDF links via Unpaywall when available — no account needed.

Build your thesis

Start a thesis from any node, add Crossref-verified citations as you go, and export the whole bibliography as BibTeX.

Browse by study level

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School

GCSE, A-Level, secondary school — clear, jargon-free explanations.

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Undergraduate

University first and second year — theory, methods, and key authors.

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Postgraduate

Masters, PhD, research — frontier debates, real DOIs, advanced frameworks.

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Professional

Practitioners, engineers, managers — applied knowledge and real-world tools.

Browse by subject

⚛️Physics 🧪Chemistry 🧬Biology ∑Mathematics 📊Statistics 💻Computer Science 📈Economics 🏢Business 🧠Psychology 👥Sociology 📜History 🤔Philosophy ⚖️Law ⚙️Engineering 🏥Health Sciences 🗣️Linguistics 🏛️Political Science 🌿Environmental 🎨Arts 📖Word Studies 🔧Trades 🔄Systems Thinking 🏛Philosophy 📜History 🌍Anthropology 🥗Nutrition 🎨Graphic Design 🎵Music Theory 🎮Game Design 🔬Natural Sciences

Live data sources powering this network (20 APIs)

Every node detail page pulls live academic papers, preprints, news, and citations from open public APIs — no paywalls, no accounts required for any of the free-tier sources below. API keys for the keyed sources are stored server-side; they are never exposed to the browser.

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OpenAlexFree · No key

250M+ academic works — papers, authors, institutions, concepts. Powers the "Live Papers" panel on every node.

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Semantic ScholarFree API key

AI-powered semantic search, citation influence scores, PDF links, and reference networks.

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arXivFree · No key

2M+ preprints in Physics, Maths, CS, Economics, Biology. Search before papers are peer-reviewed.

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CrossrefFree · Polite pool

150M+ DOI records with full metadata — title, authors, journal, date, references. Verify any DOI instantly.

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UnpaywallFree · No key

Legal open-access PDF links for any DOI — finds author manuscripts, institutional repository copies, and gold OA.

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PubMedFree · No key

35M+ biomedical citations from MEDLINE, life science journals, and online books (NIH / NLM).

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COREFree API key

Open-access full-text articles aggregated from 10,000+ repositories and journals worldwide.

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OpenLibraryFree · No key

Book metadata from the Internet Archive — author, title, subjects, edition, availability.

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NewsAPIFree API key

Headlines and articles from 80,000+ news sources — surfaces journalism relevant to academic topics.

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The GuardianFree API key

Open platform for Guardian journalism — quality long-form articles and investigations on any academic theme.

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Google KGFree API key

Google Knowledge Graph — structured entity data (description, type, related entities) for any topic.

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Springer NatureFree API key

Springer and Nature journal articles metadata and abstracts — 12M+ articles.

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World BankFree · No key

Development indicators for 200+ countries — GDP, population, education, health, poverty data.

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REST CountriesFree · No key

Country data — official name, capital, region, population, languages, currencies, flags.

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Wikipedia RESTFree · No key

Wikipedia summaries and structured data — quick orientation on any topic or entity.

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WikidataFree · No key

Structured knowledge base — entity IDs, labels, descriptions, and linked data across 100M+ items (Wikimedia).

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OpenCitationsFree · No key

1.3B+ open citation links via COCI — find every paper that cites or is cited by any DOI.

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DOAJFree · No key

Directory of Open Access Journals — 20,000+ peer-reviewed journals indexed for discoverability.

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OpenAIREFree · No key

European open research graph — publications, datasets, projects funded by EC Horizon and national funders.

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ZenodoFree · No key

CERN open research repository — datasets, preprints, software, and presentations with DOIs for every deposit.

What makes this different

Most "AI essay" tools start from a blank prompt. purposed.in starts from a map — thousands of seeded topic and word nodes, each written at school, undergraduate, postgraduate, and professional level, each linked to neighbouring ideas and backed by live literature from OpenAlex, arXiv, Semantic Scholar, and The Guardian. Wander the graph until something clicks, then turn it into a thesis.

Free, and built on open data

Citations are checked against Crossref, papers come from OpenAlex, open-access links from Unpaywall, preprints from arXiv, cited research from Semantic Scholar, news from NewsAPI and The Guardian — all public, open APIs. If you'd rather draft with your own AI, the Essay Generator gives you a ready-to-paste research prompt for ChatGPT, Claude, Gemini, or Grok.

Part of a small network: AllFrontierGlobal maps the school-to-business side of the same subjects, Travelogue is where academics and researchers swap notes on where to work from next, and Uuka ties the whole network together.

Document & Career Generators

Every generator produces a structured scaffold + AI-ready prompt you paste into ChatGPT, Claude, or Gemini. Grounded in professional frameworks. Zero signup. Instant.

🗒 Project Report Status · Feasibility · Business Case 🗂 PM Plan PRINCE2 · RACI · Risk · Agile 🎓 SME Portfolio Academic · Consultant · Speaker 💼 Roles & JD Job Description · KRA · Competency ✉️ Cover Letter Application · Academic · LinkedIn 💡 Business Ideas Business · Marketing · Sourcing 🎤 Public Speaking Speech · Hook · Story · Q&A · Slides 🔄 Systems Thinking Iceberg · Causal Loops · Leverage 🏛 Philosophy Builder Argument · Socratic · Ethics · Critique 🎨 Creative Generator Design Brief · Visual · Narrative · Critique 💪 Health & Wellness Risk · Nutrition · Mental · Exercise · Habit 🔬 Science Explainer Concept · Experiment · Method · Data · Theory

Also available: Essay Generator · FTA Savings on AFG · Generator API

New areas — now live

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Trades & Applied Skills

Carpentry, plumbing, electrical, HVAC, welding, automotive, construction — from apprenticeship to chartered status. School to professional depth.

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Emerging & Cross-Disciplinary

Systems thinking, complexity science, futures studies, AI governance, data ethics, cognitive science, human-centred design — the frontier between disciplines.

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Philosophy & Humanities

Ethics, epistemology, metaphysics, logic, aesthetics, literary theory, ancient & modern history, comparative religion, cultural anthropology — undergraduate to research level.

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New Skill Generators

Public Speaking (speeches, hooks, Q&A), Systems Thinking (iceberg, causal loops, archetypes), and Philosophy (argument builder, Socratic questions, ethical dilemmas).

8 AI models — use your own key or ours

5 of 8 providers offer a free API tier — no credit card needed. Paste your key in AI Settings and it stays in your browser only, never on our servers. No key? Use our site key and pay per query with your query wallet.

♊Gemini 1.5 FlashFREE TIER

Google DeepMind

Multimodal reasoning, long context (1M tokens), fast academic summaries.

Get API key →

𝕏Grok BetaFREE TIER

xAI

Real-time web access, witty tone, strong at research angles and debate analysis.

Get API key →

MMistral SmallFREE TIER

Mistral AI

Efficient European LLM. Strong at structured writing, essays, and formal reports.

Get API key →

GLlama 3.3 70B (Groq)FREE TIER

Groq / Meta

Ultra-fast inference via Groq hardware. Meta's open-weight 70B model — excellent for long-form generation.

Get API key →

TLlama 3.3 70B (Together AI)FREE TIER

Together AI / Meta

Open-source powerhouse. Free tier via Together AI. Ideal for thesis drafting, case studies, and guides.

Get API key →

PSonar Small OnlineAPI KEY

Perplexity AI

Web-grounded answers with inline citations. Best for current events, live research, and fact-checking.

Get API key →

◎GPT-4o MiniAPI KEY

OpenAI

Industry-standard. Reliable, structured, and nuanced. Best for essays, reports, and cover letters.

Get API key →

◈Claude 3.5 HaikuAPI KEY

Anthropic

Thoughtful, careful writing. Excellent at academic tone, thesis structure, and literature reviews.

Get API key →

BYOK (Bring Your Own Key): your key is sent only to the AI provider's API — never stored on purposed.in. Free-tier models (Gemini, Grok, Mistral, Groq, Together AI) require only a free sign-up at each provider. Perplexity, GPT-4o Mini, and Claude 3.5 Haiku are paid-tier models available via our wallet system.

🗺 Learning Progress Map Find your route · School → Professional → across 5 sites

Open full map →

🏫 School 🎓 Undergraduate 🔬 Postgraduate 💼 Professional Full decision tree ↗