MCP servers

An MCP server is something you connect an agent to. The registry will tell you a server's name, its version and how to reach it — but not what it can do, which is the only thing you actually want to know. We read that off the repository.

31,279 servers, 76,670 tool names across 6,537 of them, last read 11 September 2026.

A server's tools are not in the registry. We read them from the repository README, which means a list here is what the README documented and an absence is usually silence rather than a server with nothing to offer: 20.9% of servers have a list, and filtering on tools narrows to those. Where a list exists, the page for the server says which part of the README it came from.

racehooks-mcpio.github.racehooks
biolitio.github.rachadele · 12 tools
wonderkraftz-mcpio.github.rachit1987 · 12 tools
unity-mcp-serverio.github.rachitkumarrastogi · 134 tools
spot-mcpio.github.rackspace-spot
hivepostsio.github.raclarke1
ractermxio.github.racter-ciso
polarity-mcpio.github.radar989
zoekt-mcpio.github.radiovisual
agent-authio.github.raditotev
agent-marketplaceio.github.raditotev
agent-trustio.github.raditotev · 23 tools
pynet-mcp-bridgeio.github.rafa2403nunez-droid
stripekitio.github.rafaelcg
longhorn-mcpio.github.rafaelgaspar
seurastreioio.github.rafaelomarques
lu-mcp-serverio.github.rafapra3008
grantdio.github.rafavecchi
credit-optimizerio.github.rafsilva85
skillflowio.github.rafsilva85 · 5 tools
claude-bridge-mcpio.github.rahuljava2807
careermaxio.github.rahulphenomenon
railyio.github.railyai
isitdoneio.github.raimondasl
china-export-rebate-mcpio.github.rainbow686
docpullio.github.raintree-technology
hig-doctorio.github.raintree-technology
mphio.github.rainwald
django-telescopeio.github.raisiqueira
cls-memoryio.github.rajamohan1950
vidlens-mcpio.github.rajanrengasamy
visa-infoio.github.rajat79suri
whoop-mcpio.github.rajdeepmondaldotcom
whoop-mcp-serverio.github.rajdeepmondaldotcom
crowvaultio.github.rajeswaran140
grace-hello-mcpio.github.rajitharul
brokeria-imoveisio.github.raklapimenta
orionbelt-analyticsio.github.ralfbecher · 26 tools
orionbelt-semantic-layerio.github.ralfbecher
idevice-wearablesio.github.ralphieusa
patinaio.github.ramakrishnanhulk20
first-agentic-csaio.github.ramalamadingdong
mcp-serverio.github.ramaris-app
nervapackio.github.ramdhavepreetam
chemglyphio.github.random-orbit
supercolonyio.github.randomblocker · 7 tools
ox-alpha-signalsio.github.randomizedhoomanity
pihole-mcpio.github.ranklancer
quickerspot-mcpio.github.raphaelInacio
neurostackio.github.raphasouthall
korean-secondary-learning-map-mcpio.github.raphysicst-create
korean-vocational-learning-map-mcpio.github.raphysicst-create
raportagent-mcpio.github.raportagent · 8 tools
memorykitio.github.rapozoantonio
rarasio.github.rarasAI
cardora-business-assistantio.github.raresv
socialswarmio.github.rarrifund
chainanalyzer-mcpio.github.rascal-3 · 7 tools
misataio.github.rasinmuhammed
aicooliesio.github.rasitakyol
adaptive-memory-graphio.github.raskolnikovdd · 11 tools
rasterly-mcpio.github.rasterly-dev · 3 tools
llm-koshio.github.rastogivaibhav
n8n-mcpio.github.ratamaha-git · 12 tools
rationalbloks-mcpio.github.rationalbloks
changebookio.github.raulbr90
vnshio.github.raullenchai
lexilintio.github.raunakkathuria
ravendb-mcpio.github.ravendb · 1 tools
mempersistio.github.ravhirizaldi
mindmap-mcp-serverio.github.ravi-labs · 29 tools
insightiqio.github.ravi-p-k-1
crossplane-mcp-serverio.github.ravibagri5
sharepoint-mcpio.github.ravikant1918
azure-finops-mcpio.github.raviteja-pegata · 14 tools
ontoio.github.ravixalgorithm · 6 tools
knowledge-graphio.github.ray999
pty-mcpio.github.raychao-oao · 12 tools
agentmapio.github.raymondchins
axon-researchio.github.raysker
proofxio.github.razashariff
intentfenceio.github.razel369
razi-devio.github.razikallayi
razi-documentsio.github.razikallayi
razi-mediaio.github.razikallayi
razi-textio.github.razikallayi
razi-toolsio.github.razikallayi
razi-webio.github.razikallayi
state-traceio.github.razroo
wazapio.github.razvangirgiz · 31 tools
razzio.github.razz-games
claudexorio.github.razzant
scherlokio.github.rbmuller
ap-mcp-serverio.github.rbonestell
draftlytic-mcpio.github.rbsoftwaresystems · 5 tools
license-guardio.github.rccaoki-wq
agent-toolbeltio.github.rccola990-cloud
mcp-token-optimizerio.github.rccola990-cloud
x402-agent-storeio.github.rccola990-cloud
aichatio.github.rcgalbo · 8 tools
joltsms-smsio.github.rchanllc · 10 tools
picdefenseio-mcp-serverio.github.rchanllc · 11 tools
rcloneio.github.rclone-ui
rcsb-mcpio.github.rcsb · 35 tools
sqlbenchdagio.github.rctruta
tentraio.github.rdanieli
genome-industrial-intelligenceio.github.rdcahalane
bloodyhopes-campfireio.github.re-fagiano
reportflow-mcpio.github.re-port-flow
reach120-mcpio.github.reach120
shipkitio.github.readmigo
readyagentsio.github.readyagentsdev
nerve-rpcio.github.reagost
crabcutio.github.realcrabcut · 5 tools
mid-continental-mcpio.github.realist99
mcpio.github.realmint-io
mcp-serverio.github.realopengroup · 17 tools
rebaseio.github.rebasepro
fortfi-treasury-mcpio.github.rebelArtists
recordantio.github.recordant
recourseio.github.recourseOS
redditapis-mcpio.github.redditapis · 39 tools
mcp-redisio.github.redis
lsopenapiio.github.redoxnet
apple-calendar-mcpio.github.redpop
reefapi-mcpio.github.reefapi
snapmcpio.github.reeinharddd · 13 tools
umbra-mcpio.github.reesehammer
ref-tools-mcpio.github.ref-tools · 1 tools
referoio.github.referodesign
mcpio.github.refgrow · 18 tools
lightning-enable-mcpio.github.refined-element · 26 tools
syncbridge-mcpio.github.rehmansherazi
mockpostio.github.reiarseni
squireio.github.reidgoodbar
postmd-mcp-serverio.github.reinlainer · 23 tools
overcome-stressio.github.reitsmasieto-wq
sonovaultio.github.rekordcloud · 15 tools
relay-mcpio.github.relayprotocol
multi-mcpio.github.religa
remembraio.github.remembra-ai
appstore-screenshotsio.github.remoas
remoet-mcpio.github.remoet-labs
swiss-health-mcpio.github.remoprinz · 4 tools
pyresec-agentio.github.renaat-s
custom-mcp-databaseio.github.renanlido · 4 tools
rendley-mcpio.github.rendleyhq
agentic-task-systemio.github.renezander030
graphiti-localio.github.renezander030
fifyio.github.renfei-design
meshimize-mcpio.github.renl · 21 tools
rentahumanio.github.rentahuman-ai
qsys-mcpio.github.reowens
rephrasy-mcpio.github.rephrasyai · 2 tools
replenio.github.replenhq
reply-mcpio.github.reply-io · 71 tools
mcpio.github.replynodes · 17 tools
research-mcpio.github.research-mcp-hq
resemble-mcpio.github.resemble-ai · 6 tools
resentio.github.resentmail
relay-mcpio.github.reservoirprotocol
outage-mcpio.github.reshadat · 5 tools
tmcra-mcp-serverio.github.reshuibuduo · 9 tools
tool-filter-mcpio.github.respawn-app
daleads-mcpio.github.resuly
clickup-mcpio.github.retailbox-automation
mcp-serverio.github.retain-so · 7 tools
pa1m-hyperliquidio.github.retampweb
pa1m-redditio.github.retampweb
pa1m-seoio.github.retampweb
maeilio.github.retep-tru
zetesisio.github.reutavidan
retrochatio.github.revelc-ui
quillio.github.reverb256
prediction-market-mcpio.github.reviewmyemails
revogrid-mcpio.github.revolist
revogrid-mcp-proio.github.revolist
opportunity-mcpio.github.revolutionarybukhari · 6 tools
psx-mcpio.github.revolutionarybukhari
promptrejectormcpio.github.revsmoke
rancher-mcpio.github.rex
cve-triageio.github.rezearcher
tech-riskio.github.rezearcher
insightsentry_mcpio.github.rezmeplxrf
pvpc-mcp-serverio.github.rfdez · 1 tools
docbot-mcpio.github.rflukerii-dev
linux-filesystemio.github.rghsoftware
reportcraftio.github.rharper105
agoragenticio.github.rhein1
linux-mcp-serverio.github.rhel-lightspeed
agy-headless-bridgeio.github.rhishi99
etapa-mcpio.github.rhoneybul
rule-driftio.github.ri7in
volanteio.github.ribato22
docsonario.github.ribhav-jain
mcp-awaitio.github.ricardo-hdrn · 8 tools
blueauth-document-signingio.github.ricdanyalgil
netwrightio.github.ricfanin
smart-webio.github.rich-jojo
web-task-apiio.github.rich-jojo

Live servers only. The whole corpus is one call away through the search API — including tools=, which is how you ask for a server by what it does rather than by what it is called.