20,069 servers
Retractions
pipeworx-io/mcp-retractions
Retractions / research-integrity MCP.
retriEVAL
hcarrillo001/retrieval-mcp
LLM evals as MCP tools: score outputs for faithfulness, relevancy, and hallucination.
Reverb
pipeworx-io/mcp-reverb
Reverb MCP — the musical-instrument marketplace
Review Miner
alialtunar/review-miner-mcp
Find what users hate about competing apps and games: App Store and Steam reviews. No API keys.
Reviewguru
kapruka/reviewguru-mcp
Query Sri Lankan businesses, doctors, and reviews from any MCP-aware AI agent.
Reviewmetric
vktr93/reviewmetric-mcp
An MCP server connecting Claude to the Review Metric 15-agent scientific peer review pipeline.
Revnuvo Trust
io.github.hardeyhemy/revnuvo-trust-mcp
Verify companies, domains and counterparties before transacting. Sanctions, UBO, fraud scoring.
Revolut
jeff-nasseri/revolut-mcp
MCP server for the Revolut Business API: accounts, transactions, payments, FX, and more.
RevRule by Payload
Payloadhq/revrule-mcp
RevRule by Payload: read entitlement graphs, review payout evidence, dry-run revenue events.
Revternal
pipeworx-io/mcp-revternal
Revternal MCP — wraps Revternal's people/developer intelligence API (api.revternal.com), rebuilt…
Rfc Editor
daedalus/mcp-rfc-editor
An MCP server that provides rfc editing capabilities
RGX
trigeochiral/rgx-mcp
Tool selection, Cohere-compatible reranking, and on-chain pricing-truth for agents
Rhea
pipeworx-io/mcp-rhea
Rhea MCP — expert-curated database of biochemical reactions.
Rhein-Ruhr Fahrplan
MarcProe/rhein-ruhr-fahrplan-mcp
Public transit data for the Rhein-Ruhr region: live departures, trips, disruptions, GTFS schedules.
Rhode Island Code
pipeworx-io/mcp-rhode-island-code
Rhode Island General Laws — state statutes by citation.
Rick And Morty
pipeworx-io/mcp-rick-and-morty
Rick and Morty MCP — wraps the Rick and Morty API (free, no auth)
Rideshare Comparison
wmarceau/rideshare-comparison-mcp
Compare Uber and Lyft prices for any route
Rigelonchain
sylenzor/rigelonchain
Read-only Solana MCP: rug-risk, bundle & deployer checks, live market, full audit. No keys.
Rightos SDK
suomimasuda/rightos-sdk
RightOS MCP: privacy-first QR queue/EV/pickup. 20 tools, no end-user PII.
Rihla
leojg/rihla
Flexible multi-leg, multi-airport flight search - cheapest valid combination across an itinerary.
Rijksmuseum
pipeworx-io/mcp-rijksmuseum
Rijksmuseum — the Dutch national museum's collection, via its open Data Services API…
Riksbank Se
pipeworx-io/mcp-riksbank-se
Sveriges Riksbank (Sweden's central bank) SWEA v1 MCP. Keyless.
Riksdagen Se
pipeworx-io/mcp-riksdagen-se
Riksdagen (Swedish Parliament) open data MCP.
RillCoin
rillcoin/rill
AI agent wallets, Proof of Conduct reputation, and concentration decay on L1
Ripe Stat
pipeworx-io/mcp-ripe-stat
RIPE Stat MCP — IP/ASN/BGP data
Risk Assessment AI
CSOAI-ORG/risk-assessment-ai-mcp
Risk Assessment Ai MCP Server by MEOK AI Labs
Ritn3d
printplan3d/ritn3d-mcp
Tools for floor plan validation, GLB checks, and 3D-print unit math — Ritn3D companion.
Riv IO
Christopher-AS/Riv.IO
Riv MCP: spend authorization and governed trading (place_order, positions, market data, policies).
Rival Regulatory Toolkit
rival-intelligence/rival-regulatory-toolkit
Read-only regulatory source retrieval, citation tracing, authority metadata, and recent filings.
Rivet
dev.rivet/mcp
Manage Rivet Cloud namespaces and actors, run Code Mode, and open the Rivet Actor Inspector.
Rls Check
Muhandis-online/rls-check
Read-only Supabase RLS check: explains in Arabic which tables anyone can read or change. No keys.
Rls Doctor
subhajitlucky/rls-doctor
Read-only Postgres/Supabase RLS audit with a rolled-back probe that proves who can read which rows.
Roast My Design System
pencilrebel/roast-my-design-system
Audit your Design System and serve your Agent the rules that keep AI-written UI on-system.
RoastPilot
syamaner/coffee-roaster-mcp
RoastPilot controls coffee roasting sessions through local stdio MCP tools and exports logs.
ROBINS-I V2
Black-Swan-Causal-Labs/robins-i-mcp
ROBINS-I V2 (not V1): risk of bias in one result of a non-randomized cohort study
Roblox
mrfentmen/roblox-mcp
Roblox user profiles from the public API. No key required.
Robot Resources Router
robot-resources/robot-resources
Intelligent LLM routing proxy — 60-90% cost savings by auto-selecting the cheapest model
Robotics Control
CSOAI-ORG/robotics-control-mcp
Robotics Control MCP Server by MEOK AI Labs
Rock Regeneration Gigs
cuotos/rock-regeneration-gigs-mcp
Search upcoming gigs from the Rock Regeneration gig guide (southern England).
Rocketchat
millerchou/rocketchat-mcp
MCP server for Rocket.Chat — messages, DMs, search, files, and channels over stdio
RocketCyber
WYRE-AI/rocketcyber-mcp
MCP server for RocketCyber Managed SOC — incidents, alerts, agents, and customer telemetry.
RocketCyber
wyre-technology/rocketcyber-mcp
MCP server for RocketCyber Managed SOC — incidents, alerts, agents, and customer telemetry.
Rocketreach
pipeworx-io/mcp-rocketreach
RocketReach MCP — wraps the RocketReach person-lookup API (rocketreach.co)
RogerRat
opcastil11/rogerrat
Real-time chat hub for AI agents — Claude Code, Cursor, Cline, Codex over MCP or REST.
RogerThat
opcastil11/rogerthat
Real-time chat hub for AI agents — Claude Code, Cursor, Cline, Codex over MCP or REST.
Rogiervdbrnk
rogiervdbrnk/mcp-server
Dutch real estate data with KRK Makelaars report generation.
Rogue Binary
kirkderp/rbinmcp
Rust MCP server for binary analysis and reverse engineering.
Roistat
theYahia/roistat-mcp
MCP server for Roistat API — marketing analytics, visits tracking. API key auth.