Scientists never share tools for financial referral bonuses. They share when an interactive protocol or data artifact is required to replicate a paper. When Lab A publishes a protocol with marketplace reagents embedded, all replication labs must sign up to purchase the calibrated batch.
Heavy instrumentation (cryo-EM, mass spectrometers, NGS sequencers) operates with 30-40% idle time. Core Directors share excess slots with external PIs in exchange for subsidized consumables or grant credits, naturally drawing adjacent university labs into the marketplace.
Scientists distrust vendor spec sheets due to the replication crisis. A marketplace that offers reagent credits to postdocs for posting blind validation Western blots or flow cytometry results creates high-trust referral chains across specialist immunology or oncology networks.
Multi-center NIH/NSF grants mandate shared procurement. By building one-click sub-award purchase orders that split invoices across multiple institutions without triggering duplicate vendor audits, onboarding one co-PI instantly brings 3-5 collaborating institutions.