Nullary - Negative Results Intelligence For Drug Discovery
Nullary is a hosted MCP server that lets AI agents query measured negative results from drug discovery: inactive compounds, failed selectivity panels, terminated clinical trials, failed CRISPR screens, antibody developability failures, and more — each result carrying full provenance (source database, DOI/PMID, license).
Overview
What you can ask
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"What's failed against EGFR?" — failed compounds, trials, and screens for a target, across modalities
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"Which kinase inhibitors were inactive in ChEMBL?"
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"Show terminated Phase 2 oncology trials and why they stopped"
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"Failed CRISPR knockouts for TP53"
Tools are organized by modality (small molecule, CRISPR, antibody, peptide, PROTAC, clinical trial, …); every response cites its source.
Server Config
{
"mcpServers": {
"nullary": {
"url": "https://mcp.nullary.ai/mcp"
}
}
}Recommend Servers
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