Get unlimited access to The Archive's entire library of books, articles, and research files. Start with a free 5-day trial, then pick the plan that works for you.
The Archive is a curated digital library of over 8,000 scientific and technical documents — books, peer-reviewed articles, theses, and research reports covering extractive metallurgy, mining engineering, hydrometallurgy, cobalt and copper processing, industrial chemistry, and applied scientific research. Every plan includes full-text search inside every PDF, AI-generated abstracts, on-demand translation across 10 languages, and unlimited downloads for the duration of your subscription. Free-tier members get 10 downloads per month; paid plans unlock the entire library and priority support.
Whether you are preparing a literature review for a metallurgical thesis, sourcing operating data for a hydrometallurgical circuit, benchmarking flotation performance for a plant audit, or building a reading list for a graduate course, a paid subscription gives you full access to the library without per-download friction. Subscriptions are billed in advance via Stripe, are renewable at any time, and can be cancelled from your profile — access continues until the end of the current paid period.
What you get on every paid plan: unlimited downloads · full-text search inside every PDF · AI-generated abstracts and multilingual translations · reading collections (public and private) · priority email support · thumbnail previews · citation-ready metadata · plagiarism / similarity checking · early access to new features.
Download any book or file without monthly limits.
Access the entire collection of books, articles, and research papers.
Use smart filters to find exactly what you need by date, type, language, and more.
Get help faster when you need it.
| Feature | Free | Subscribed |
|---|---|---|
| Monthly downloads | 10 | Unlimited |
| Library access | Limited | Full |
| Advanced search & filters | Basic | Full |
| Reading collections | - | |
| Free trial | - | 5 days |
Perfect to try The Archive for a short period.
Good for short research projects and courses.
Best for longer projects and extended research.
Best value for ongoing research and frequent use.
Yes, you can cancel anytime. Your access continues until the end of your billing period.
Yes! New users get a 5-day free trial with full access to the library. No payment required to start.
You return to the free tier with 10 downloads per month. Your collections and account data are preserved.
Yes, you can upgrade to a longer plan at any time. The new plan starts immediately after payment.
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