Nullary

This connects Claude to Nullary's database of negative results in drug discovery, letting you query experimental failures that typically go unpublished. You can search for compounds that didn't work against specific targets, failed assays, and abandoned research directions. Reach for this when you're planning drug discovery experiments and want to avoid repeating work that's already been tried and measured as unsuccessful. The intelligence comes from actual lab data rather than just published literature, which means you're tapping into the 90% of research outcomes that never make it to papers. It's delivered over streamable HTTP, so queries stream results as they're found rather than blocking on large datasets.