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MCP servers over stdio

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.

How you run it
anyremotelocalboth
Transport
anystreamable-httpssestdio
Tools
anyknown

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.

  1. japan-data-mcpio.github.Izyuusya
  2. s2-netbox-mcpio.github.J-MaFf
  3. aws-payment-cryptography-mcpio.github.J8k3
  4. open-state-campingio.github.JCrossman
  5. jampio.github.JDWilliums
  6. k8gentsio.github.JDoornink
  7. moltbridgeio.github.JKHeadley
  8. threadline-mcpio.github.JKHeadley
  9. talktoplanb-mcpio.github.JMLEE850623 · 4 tools
  10. lacuna-mcpio.github.JOYLINK-LTD
  11. partunoio.github.JPMarhefka
  12. heyclaudeio.github.JSONbored
  13. ae-mcpio.github.JUNKDOGE-JOE
  14. opencut-controllerio.github.JXUE0
  15. vibelawyerio.github.Jack-mi
  16. allmcps-serverio.github.Jackalope-Dev · 8 tools
  17. steam-local-mcpio.github.Jackson-Brooks
  18. datasentryio.github.Jackxiaozhiren
  19. user-promptio.github.Jacob-J-Thomas
  20. CAITio.github.JacobBruce
  21. diamond-mcpio.github.JacobiusMakes · 10 tools
  22. parlayapiio.github.JacobiusMakes · 22 tools
  23. webpeelio.github.JakeLiuMe
  24. german-newsfeed-mcpio.github.Jakolo121 · 6 tools
  25. repo-graphio.github.James-Chahwan · 6 tools
  26. agentic-osio.github.Jarroslav
  27. agent-guardrailio.github.JarvisOnM4
  28. report-needsio.github.JarvisOnM4 · 7 tools
  29. computer-use-omniio.github.Jason26214 · 2 tools
  30. omni-computer-useio.github.Jason26214 · 2 tools
  31. pwsh-exec-mcpio.github.Jason26214
  32. assayio.github.JasonCZMeng
  33. suede-skills-mcpio.github.JasonColapietro
  34. byakuganio.github.JayOfemi
  35. shikamaruio.github.JayOfemi
  36. zenlink-mcpio.github.JayQuan-McCleary
  37. cognitive-substrateio.github.JaysonAIOnline
  38. maasyio.github.Jbelieve · 17 tools
  39. rosetta-mcpio.github.Jcjimenezglez
  40. packet-tracer-mcpio.github.Jcorderop02
  41. crapkitio.github.JeanFrancoisGagne
  42. mcp-test-utilsio.github.JeenyJAI
  43. cryptocapiio.github.Jegoba90
  44. macos-mcpio.github.Jeomon
  45. financetoolkitio.github.JerBouma
  46. agent-web-searchio.github.JerryLiu369
  47. skim402io.github.JessieJanie · 1 tools
  48. letheio.github.JesusGarcia9009
  49. codebase-context-mcpio.github.Jhackman2019 · 5 tools
  50. brightspaceio.github.JhostinAleck · 26 tools
  51. mcp-doctorio.github.Jiansen
  52. proxy-doctorio.github.Jiansen
  53. eurodns-mcpio.github.JigSawFr
  54. fastmcp-trelloio.github.Jimdrews
  55. gemini-imageio.github.JimothySnicket
  56. cyberhuatuoio.github.JinNing6
  57. noosphereio.github.JinNing6
  58. aihot-mcpio.github.Jing7ao
  59. seedance-mcpio.github.Jing7ao
  60. people-contextio.github.JinyangWang27
  61. astgl-knowledgeio.github.Jmeg8r · 7 tools
  62. france-travail-mcpio.github.JoJoLaBagarre
  63. cli-bridge-mcpio.github.JoaoBerne
  64. synmercoio.github.JoeSRQ
  65. mcp-server-mcdevio.github.JoernBerkefeld · 5 tools
  66. mcp-server-sfmcio.github.JoernBerkefeld · 27 tools
  67. agentsealio.github.JoeyBrar · 3 tools
  68. canvas-api-mcpio.github.JohannsenLum · 19 tools
  69. is-it-ai-mcpio.github.JohannsenLum · 2 tools
  70. linkedin-api-mcpio.github.JohannsenLum · 14 tools
  71. adomcpio.github.John0King · 8 tools
  72. mcphubio.github.John0King
  73. chainrpc-mcpio.github.John0n1 · 18 tools
  74. appstore-play-mcpio.github.JohnBilousov · 12 tools
  75. vocabit-mcpio.github.JohnBilousov · 12 tools
  76. fusion-mcpio.github.Jolymmiles · 1 tools
  77. accuweather-mcpio.github.JonJam
  78. cpfs-mcpio.github.JonahAlexanian
  79. yocoolabio.github.Jonahbkerr · 4 tools
  80. x402-trust-mcpio.github.JonasFuchss · 13 tools
  81. pyeuropepmcio.github.JonasHeinickeBio
  82. labmate-mcpio.github.JonasRackl · 81 tools
  83. apple-calendar-mcpio.github.JonathanRReed
  84. apple-contacts-mcpio.github.JonathanRReed
  85. apple-files-mcpio.github.JonathanRReed
  86. apple-maps-mcpio.github.JonathanRReed
  87. apple-mcp-mailio.github.JonathanRReed
  88. apple-mcp-notesio.github.JonathanRReed
  89. apple-mcp-remindersio.github.JonathanRReed
  90. apple-messages-mcpio.github.JonathanRReed
  91. apple-shortcuts-mcpio.github.JonathanRReed
  92. apple-system-mcpio.github.JonathanRReed
  93. apple-tools-mcpio.github.JonathanRReed
  94. vectoriseio.github.JonathanWeerakkody
  95. physboundio.github.JonesRobM · 6 tools
  96. symbolsio.github.Jordan-Horner
  97. idameshio.github.JordanRO2
  98. nidoio.github.Josepavese
  99. global-intel-exchangeio.github.Joseph-CEO
  100. agent-gateio.github.Jott2121
  101. truepath-office-mcpio.github.JoyTruepath
  102. truepath-pdf-mcpio.github.JoyTruepath
  103. cardossier-market-apiio.github.Joyall-au · 5 tools
  104. foundry-zksyncio.github.Jrigada · 21 tools
  105. scrcpy-mcpio.github.JuanCF · 36 tools
  106. context-memio.github.JubaKitiashvili
  107. standup-mrio.github.Jubstaaa
  108. judgment-packio.github.Judgment-Pack
  109. pronunciationio.github.JuhongPark · 15 tools
  110. invaraio.github.Jujitae
  111. workflow-mcpio.github.Juliusolsson05
  112. deepbomio.github.JunHwan-Kwon
  113. june-mcpio.github.Junemind · 17 tools
  114. mycalio.github.Junhui20
  115. mcp-server-indexio.github.JustAiAgent0809
  116. mcp-accessibility-scannerio.github.JustasMonkev · 43 tools
  117. roblox-studio-mcpio.github.Justice219 · 14 tools
  118. agent-push-kitio.github.JustinBStrong
  119. gongio-mcpio.github.JustinBeckwith · 8 tools
  120. linkinator-mcpio.github.JustinBeckwith
  121. pylon-mcpio.github.JustinBeckwith · 32 tools
  122. audio-analyzerio.github.JuzzyDee · 6 tools
  123. mcp-bench-routerio.github.K1ta141k · 4 tools
  124. freshvaultio.github.KIOKO-LAB
  125. clavisio.github.KN0WBOT · 4 tools
  126. meridian-mcpio.github.KNambiarDJsc
  127. riksdag-regering-mcpio.github.KSAklfszf921
  128. skolverket-mcpio.github.KSAklfszf921
  129. mcp-serverio.github.KStreak2026
  130. aisentinelio.github.Kabzhanov
  131. pypresetio.github.KaiErikNiermann
  132. task-warrior-mcpio.github.KaiErikNiermann · 8 tools
  133. memory-nexus-mcpio.github.KairosMobius · 10 tools
  134. nexus-memory-mcpio.github.KairosMobius · 10 tools
  135. k402io.github.Kali123411
  136. kx402io.github.Kali123411
  137. mcp-unifi-applicationsio.github.KallistoX · 10 tools
  138. mcp-google-formsio.github.KamaruSama
  139. mcp-screenshotio.github.KamaruSama · 2 tools
  140. mcp-sudoio.github.KamaruSama · 4 tools
  141. viewdoctorio.github.KamnevVladimir
  142. dash-mcp-serverio.github.Kapeli · 4 tools
  143. standby-design-mcpio.github.KarstenKreh
  144. TestAtlas.Mcpio.github.Karzone
  145. thoughtboxio.github.Kastalien-Research
  146. time-mcpio.github.KatoMato65 · 1 tools
  147. agent-guard-mcpio.github.Kavachh · 3 tools
  148. abscissaio.github.KazKozDev · 42 tools
  149. footnote-mcpio.github.KazKozDev
  150. searchio.github.KazKozDev
  151. weboperatorio.github.KazKozDev
  152. martin-loopio.github.Keesan12
  153. keibidropio.github.KeibiSoft
  154. sundr-mcpio.github.KeithWyatt
  155. millionio.github.Kelows
  156. dwf-mcp-serverio.github.KenosInc
  157. sigrok-mcp-serverio.github.KenosInc · 11 tools
  158. opentakeoffio.github.Kentucky-ai · 46 tools
  159. FedRAMP20xMCPio.github.KevinRabun · 20 tools
  160. GDPRShiftLeftMCPio.github.KevinRabun · 34 tools
  161. judgesio.github.KevinRabun · 3 tools
  162. agentciteio.github.Kevinx702
  163. legalciteio.github.Kevinx702
  164. chain-signerio.github.Kevthetech143
  165. keyidio.github.KeyID-AI
  166. argusio.github.Khamel83
  167. futpicksio.github.Khavel · 17 tools
  168. portfolio-signalsio.github.KhizarShabir1
  169. claude-desktop-bridgeio.github.KiMiGuel
  170. RawSqlMcpio.github.KifoPL
  171. kilawatt-mcp-serverio.github.KilaWattCloud
  172. orangerailio.github.KimHyeongRae0
  173. twigio.github.Kind-ling
  174. coinvoyageio.github.KingPeque
  175. ui-design-to-code-mcpio.github.Kinglions · 14 tools
  176. github-inside-claude-codeio.github.Kirchlive
  177. phosphorio.github.Kirusshenkin
  178. agent-sudo-mcpio.github.Kisyntra
  179. video-vision-mcpio.github.KitDevUA · 4 tools
  180. zoo-mcpio.github.KittyCAD · 1 tools
  181. rqwstrio.github.Kjopstad-IT
  182. forex-mobileio.github.Klawdik
  183. jlink-mcpio.github.Klievan
  184. loomio.github.KlossKarl
  185. verifactu-mcpio.github.KmOnBeIbI31
  186. wigoloio.github.KnockOutEZ · 10 tools
  187. newton-browserio.github.Koala-Studios
  188. ja-normalizeio.github.KojimaHyui01
  189. komnetio.github.Komdosh
  190. HomeAssistant-Light-MCPio.github.Koneisto · 11 tools
  191. no-as-a-serviceio.github.Koneisto · 2 tools
  192. governanceio.github.Korext
  193. pystubio.github.KoyoYeager
  194. project-bourneio.github.KozakHou
  195. osmcpio.github.KrushnaVardhanReddy
  196. toposio.github.Krv-Labs
  197. agent-observabilityio.github.KryptosAI
  198. mcp-observatoryio.github.KryptosAI
  199. mcp-seatbeltio.github.KryptosAI
  200. kvc-mcpio.github.KrystalUnity

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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.