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Discover Model Context Protocol servers from the official registry. Publisher metadata with transparent provenance — not a security certification.
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56 711 records · Registry listing ≠ independent verification by NexIP
Unpaywall
io.github.pipeworx-io/unpaywall
Unpaywall MCP — open-access lookup for scholarly papers (free, no key)
Universities
io.github.pipeworx-io/universities
Universities MCP — Hipolabs Universities API (free, no auth)
Unicef
io.github.pipeworx-io/unicef
UNICEF Data (UN Children's Fund) MCP — global statistics on child health, nutrition, education…
Un Sdg
io.github.pipeworx-io/un-sdg
UN Sustainable Development Goals (SDG) Indicators MCP — UN Statistics Division.
Umls
io.github.pipeworx-io/umls
UMLS MCP — wraps the NLM UMLS Terminology Services REST API (uts-ws.nlm.nih.gov/rest)
Ukri Gtr
io.github.pipeworx-io/ukri-gtr
UKRI Gateway to Research (GtR) MCP — every grant awarded by the UK's seven research councils plus…
Ukraine Public Spending
io.github.pipeworx-io/ukraine-public-spending
Ukraine public spending MCP — State Treasury payment transactions (keyless).
Ukpolice
io.github.pipeworx-io/ukpolice
UK Police MCP — wraps the UK Police Data API (free, no auth) https://data.police.uk/api
Uk Tribunals
io.github.pipeworx-io/uk-tribunals
UK first-tier tribunal decisions — GOV.UK search + content API.
Uk Trade Tariff
io.github.pipeworx-io/uk-trade-tariff
UK Integrated Online Tariff from HMRC's trade-tariff service: look up a UK commodity code, its…
Uk Planning Data
io.github.pipeworx-io/uk-planning-data
UK planning designations from planning.data.gov.uk, the MHCLG national planning data platform…