nullary

connects

mcp.nullary.ai

Negative results intelligence for drug discovery — query measured failures via MCP.

https://mcp.nullary.ai/mcpNo authMCP 2025-11-25v1.0.1last checked 24 Aug 2026spoke MCP on 2 of 2 checks (30 days)initialize in 625 ms

How to authenticate

Checked against the endpoint by our probe on 24 Aug 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme	No auth
Protected-resource metadata	✕Not found Without it a client has to guess where the authorization server lives.
Anonymous access	Handshake succeeds; 35 tools listable

What the probe found

No CORS headers for browser-based clients

A cross-origin preflight came back without Access-Control-Allow-Origin, so the endpoint is reachable from native clients only — code running in a web page is stopped by the browser before a request is ever sent.

Tools

get_compoundget_coverageget_finding_provenanceget_model_cardget_target_landscapelist_modelslist_top_targetssearch_adc_linker_failuressearch_admet_failuressearch_admet_failures_all_modalitiessearch_ancestry_specific_failuressearch_bispecific_format_failuressearch_developability_failuressearch_drug_drug_interaction_failuressearch_failed_adcssearch_failed_bispecificssearch_failed_clinical_antibodiessearch_failed_essentiality_screenssearch_failed_guidessearch_failed_oligonucleotidessearch_failed_peptide_therapeuticssearch_failed_protacssearch_failed_replicationssearch_failed_selectivitysearch_failed_vaccinessearch_inactive_compoundssearch_indication_historysearch_mechanism_failuressearch_oligo_delivery_failuressearch_pathogen_historysearch_peptide_stability_issuessearch_protac_e3_issuessearch_safety_failuressearch_target_historysearch_vaccine_immunogenicity_failures

Contract history

24 Aug 2026v1.0.1first recorded contract

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

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