MCP servers

Repology MCP — cross-distro package version aggregator.

RescueGroups.org MCP — adoptable animals and the rescues/shelters that list them, from the…

One call, one paper: everything openly available around it — full text, license, datasets, code…

Resident Advisor (ra.co) MCP.

Retractions / research-integrity MCP.

Reverb MCP — the musical-instrument marketplace

Revternal MCP — wraps Revternal's people/developer intelligence API (api.revternal.com), rebuilt…

RFC Editor MCP.

Rhea MCP — expert-curated database of biochemical reactions.

Rhode Island General Laws — state statutes by citation.

Rick and Morty MCP — wraps the Rick and Morty API (free, no auth)

Rijksmuseum — the Dutch national museum's collection, via its open Data Services API…

Sveriges Riksbank (Sweden's central bank) SWEA v1 MCP. Keyless.

Riksdagen (Swedish Parliament) open data MCP.

Riot Games API MCP.

RIPE Stat MCP — IP/ASN/BGP data

Roblox MCP.

RocketReach MCP — wraps the RocketReach person-lookup API (rocketreach.co)

ROR MCP — Research Organization Registry.

rss2json MCP.

RubyGems MCP — wraps the RubyGems.org public API (free, no auth)

EBI PRIDE Archive MCP — proteomics (mass-spectrometry) data repository. Keyless. Wraps the public…

PR Newswire MCP — press releases from PR Newswire's all-releases feed.

Product Hunt MCP — wraps the Product Hunt GraphQL API v2 (api.producthunt.com)