"Overview of HTTP (HyperText Transfer Protocol)" matching MCP connectors:

Directory of US clearinghouse/payer APIs (Availity, Optum, Waystar) with pricing & access signals.

Open Tree of Life MCP.

Rhea MCP — expert-curated database of biochemical reactions.

WoRMS (World Register of Marine Species) MCP — keyless.

KEGG REST MCP — Kyoto Encyclopedia of Genes and Genomes.

GWAS Catalog (EBI/NHGRI) MCP — curated catalog of genome-wide association studies.

Catalogue of Life — global taxonomic index of known species (~2.2M accepted names)

Encyclopedia of Life (EOL) — biodiversity taxa, names, hierarchies

Bioregistry — meta-registry of biomedical identifier prefixes

Calculate Actuarial Value (AV) & metal tier of a health insurance plan from any document.

Medical RAG: semantic search for clinical guidelines, drug interactions, diagnoses & EHR data.