MCP Servers
Model Context Protocol servers that give AI agents access to tools and data — sourced from the official MCP registry and ranked by GitHub stars.
Revternal
Revternal MCP — wraps the Revternal Developer Intelligence API
Rhea
Rhea MCP — expert-curated database of biochemical reactions.
Rick And Morty
Rick and Morty MCP — wraps the Rick and Morty API (free, no auth)
rickmorty
Rick and Morty MCP — wraps The Rick and Morty API (free, no auth)
Riksbank Se
Sveriges Riksbank (Sweden's central bank) SWEA v1 MCP. Keyless.
Roblox
Roblox public profile + friends + badges + games + groups lookups.
Rss2json
rss2json: convert any RSS/Atom feed to JSON. Keyless basic, optional API key for count.
Rubygems
RubyGems MCP — wraps the RubyGems.org public API (free, no auth)
Rxnorm
RxNorm MCP — wraps the NLM RxNav REST API (free, no auth)
Sanctions Screening
Screen names against the US Consolidated Screening List: OFAC SDN, BIS Entity List +10 more lists
Scb Se
Statistics Sweden (SCB) — PxWeb JSON-stat statistical database
Schrodingers Boolean
schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)
Scream Void
scream-void MCP — wraps StupidAPIs (requires X-API-Key)