MCP servers for HTTP / API

US Travel Advisories MCP.

UNESCO Institute for Statistics (UIS) MCP — keyless.

UNICEF Data (UN Children's Fund) MCP — global statistics on child health,

Unicode character MCP.

UniProt MCP — protein sequence + function database.

US ISO Grid MCP — real-time electricity generation, fuel mix, demand,

US News Feeds MCP.

User-Agent parser MCP.

USGS Volcano MCP — Volcano Hazards Program HANS-public feed (no auth)

UUID validation & generation MCP.

VizieR MCP — CDS astronomical catalogue access.

Environment and Climate Change Canada (ECCC) GeoMet MCP.

Weather MCP — wraps Open-Meteo API (free, no auth)

Wger MCP — wraps wger Workout Manager REST API (free, no auth for read)

WHO GHO MCP — World Health Organization Global Health Observatory (free, no auth)

Wikidata MCP — wraps Wikidata API (wikidata.org/w/api.php)

Wikidata SPARQL MCP — Wikidata Query Service

Wikipedia MCP — wraps Wikipedia REST API (free, no auth)

Wikiquote MCP — sourced quotations

World News Feeds MCP.

Zenodo MCP.