"1&1" matching MCP connectors:

Condition-aware ingredient & product safety intelligence for agents: verdict + evidence tier + per-claim evidence_state (cited = ≥1 verified citation / referenced = sourced-but-unverified) + citations, across breastfeeding, pregnancy, histamine/MCAS, rosacea, HS, allergy, fertility, and toddler lenses. Includes validate_claim to fact-check a free-text health claim against curated cited sources.

GLP-1 phase-aware nutrition: muscle preservation, GI tolerance, taper protocols.

PubMed molecular-hydrogen medical literature with delivery-aware safety notes inline.

Peptide vendor matchmaker. 11-signal rubric, GLP-1 + 25 peptides, region-aware, free.

1k patient MCP server