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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. amanatio.github.PugarHuda
  2. utuh-mcpio.github.PugarHuda
  3. pulse-verityio.github.PulseBet
  4. quillpdf-mcpio.github.PurpleDirective · 15 tools
  5. fitterio.github.PxyUp · 6 tools
  6. aiogram-mcpio.github.Py2755
  7. pdf4vllmio.github.PyJudge · 3 tools
  8. claude-agy-mcpio.github.PyModel · 6 tools
  9. ouroborosio.github.Q00
  10. doigetio.github.QAtlasHub
  11. openmm-mcpio.github.QBT-Labs
  12. mcpio.github.QVerisAI
  13. leafenginesio.github.QWarranto
  14. qasperio.github.QasperAI · 7 tools
  15. qiskit-code-assistant-mcp-serverio.github.Qiskit
  16. qiskit-docs-mcp-serverio.github.Qiskit
  17. qiskit-gym-mcp-serverio.github.Qiskit
  18. qiskit-ibm-runtime-mcp-serverio.github.Qiskit
  19. qiskit-ibm-transpiler-mcp-serverio.github.Qiskit
  20. qiskit-mcp-serverio.github.Qiskit
  21. interminalio.github.QiuwenZheng · 6 tools
  22. mcp-serverio.github.QrMakerIO
  23. qmax-mcpio.github.Quality-Max
  24. samplemcp-serverio.github.Quangsumi
  25. quantgist-mcpio.github.QuantGist-Technologies · 17 tools
  26. hivemindio.github.QuantuLabs · 5 tools
  27. nano-pdf-mcpio.github.R09722akaBennett
  28. engagelab-emailio.github.R1ghtHereWaiting · 9 tools
  29. ccboot-mcp-serverio.github.RCOLKITT
  30. vaspera-hardeningio.github.RCOLKITT
  31. vaspera-pmio.github.RCOLKITT
  32. vasperamemoryio.github.RCOLKITT
  33. bitrix24-mcpio.github.RCS-kz
  34. mcp-1cio.github.RCS-kz
  35. rq-scanio.github.RECERQA
  36. fable-modeio.github.REX-codebase
  37. gemini-mcpio.github.RLabs-Inc · 21 tools
  38. rigshareio.github.RPER2001
  39. mcp-n8nio.github.RPGMais · 43 tools
  40. bankregpulse-mcp-serverio.github.RRGU26
  41. local-leads-mcpio.github.Raffaele86
  42. seo-stack-mcpio.github.Raffaele86 · 86 tools
  43. rootvine-mcpio.github.RagingOrangutan · 5 tools
  44. mcp-aider-executorio.github.RailKill
  45. btp-sap-odata-to-mcp-server-optimizedio.github.Raistlin82
  46. n3moio.github.RajX-dev
  47. context-vaultio.github.RajdeepDas43
  48. quellgeist-commitsio.github.Rajeev-Shyam
  49. quellgeist-logsio.github.Rajeev-Shyam
  50. quellgeist-metricsio.github.Rajeev-Shyam
  51. mcp-server-terraformio.github.RajeevSirohi · 11 tools
  52. gfi-scoutio.github.Rajveerx11 · 4 tools
  53. namemyappio.github.Rakesh1002 · 3 tools
  54. reposcoutio.github.Rakesh1002
  55. titen-memoryio.github.RamaAditya49
  56. noether-physicsio.github.Ranshiv
  57. perplexity-comet-mcpio.github.RapierCraft
  58. Nova3Dio.github.RareSense
  59. spineframeio.github.Ratnaditya-J
  60. zotero-library-mcpio.github.RaulSimpetru · 1 tools
  61. yuanzhuio.github.RavenWangChina
  62. lit-review-councilio.github.Ravicha2
  63. git-mcp-serverio.github.Ray0907 · 23 tools
  64. ocular-audio-mcpio.github.RayAKaan · 8 tools
  65. grocery-delivery-mcpio.github.RayNCooper
  66. netlogo-mcpio.github.Razee4315
  67. awesome-copilot-mcpio.github.RbBtSn0w
  68. hindsight-mcpio.github.Rbfinch · 6 tools
  69. clawbackai-mcpio.github.Rckl88
  70. seracadeio.github.Rckl88
  71. regennexus-mcpio.github.ReGenNow
  72. reachpad-mcpio.github.Reachpad
  73. recallio.github.RecallWorks
  74. keeping-mcpio.github.Red-Square-Software
  75. realagent-mcpio.github.RedDateTech · 14 tools
  76. insights-mcpio.github.RedHatInsights
  77. diagrams-so-mcpio.github.RedHold
  78. rpgmaker-mz-mcpio.github.Redseb · 58 tools
  79. tokeneyezio.github.Reemedri
  80. taskboard-mcpio.github.RefugeSwordPublishing
  81. code-indexio.github.Regsorm
  82. proxmox-mcp-plusio.github.RekklesNA
  83. MCPio.github.ReplenishRadar · 49 tools
  84. repo-test-architectio.github.RepoAssay
  85. amenboio.github.Rererr
  86. pagemapio.github.Retio-ai · 13 tools
  87. mcp-memory-graphio.github.RetroRobAI
  88. vintageio.github.RezaSoleymanifar
  89. db-access-mcpio.github.Rheopyrin · 11 tools
  90. ox-mcpio.github.Rheopyrin · 3 tools
  91. unreal-mcp-ue4-for-ohdio.github.RibatTRW
  92. exogramio.github.Richard-Ewing
  93. agent-teamio.github.RichardLemmon
  94. mupio.github.Ricky610329
  95. mcp-data-profilerio.github.Ridadata
  96. socialcrawlio.github.RidioDevelopment · 4 tools
  97. forge-mcp-serverio.github.RightNow-AI
  98. gmocoin-fx-mcpio.github.RikitoNoto · 13 tools
  99. pls-touch-grassio.github.Rinava
  100. umbryn-mcpio.github.Rinava
  101. warpio.github.Ringer
  102. homey-wan-kenobi-mcpio.github.Ringosystems · 60 tools
  103. tractorbeeam-mcpio.github.Ringosystems
  104. prexistio.github.RishabhKodes
  105. sentimatixio.github.Rishav0123 · 8 tools
  106. cdt-express-mcpio.github.RiskThinking
  107. rag-vaultio.github.RobThePCGuy
  108. logclaw-mcp-serverio.github.RobelDev
  109. charity-commissionio.github.RobertAlsop
  110. companies-houseio.github.RobertAlsop
  111. environment-agencyio.github.RobertAlsop
  112. fca-registerio.github.RobertAlsop
  113. ikuna-mcpio.github.RobertoHanas
  114. mcp-server-decisionsio.github.Roberton003
  115. spawnpayio.github.Robocular
  116. security-orchestraio.github.RobotFleet-HQ
  117. formacvio.github.Rocketech-Software-Development · 8 tools
  118. obambu-cpanel-mcpio.github.RodrigueDev13 · 16 tools
  119. backburnerio.github.RohitYajee8076
  120. mcp-retrievalio.github.Role1776
  121. mcp-xio.github.Role1776 · 55 tools
  122. optics-mcpio.github.RoleModel
  123. hotelbookingio.github.RollingGo-AI
  124. hotelbooking-aiio.github.RollingGo-AI
  125. mails-agent-emailio.github.RolloutsAI
  126. cli2mcpio.github.RonieNeubauer
  127. ai-price-index-mcpio.github.RoninForge · 5 tools
  128. finance-intelligence-mcpio.github.Ronit-019 · 12 tools
  129. dendro-reactio.github.RooneyTech
  130. rosenticio.github.Rosentic
  131. mcpsentryio.github.Roshan6335
  132. flashbankio.github.Rotwang9000
  133. ikenga-pkg-mcp-iykeio.github.Royalti-io · 25 tools
  134. deepviewsio.github.Rswcf
  135. devicecloudio.github.RubenGlez · 10 tools
  136. agent-evalio.github.RudrenduPaul
  137. agent-observabilityio.github.RudrenduPaul
  138. agenticworkspaceio.github.RudrenduPaul
  139. auditreachio.github.RudrenduPaul
  140. computeledgerio.github.RudrenduPaul
  141. continuityguardio.github.RudrenduPaul
  142. deskcertio.github.RudrenduPaul
  143. electronics-rfq-agentio.github.RudrenduPaul
  144. evolveguardio.github.RudrenduPaul
  145. freelancer-payment-protectionio.github.RudrenduPaul
  146. graphkeeperio.github.RudrenduPaul
  147. haltproofio.github.RudrenduPaul
  148. inferbenchio.github.RudrenduPaul
  149. llmscoutio.github.RudrenduPaul
  150. masterytraceio.github.RudrenduPaul
  151. memtrustio.github.RudrenduPaul
  152. neuronscopeio.github.RudrenduPaul
  153. ownvoiceio.github.RudrenduPaul
  154. paceproofio.github.RudrenduPaul
  155. podcast-guest-crmio.github.RudrenduPaul
  156. releaseguardio.github.RudrenduPaul
  157. shimguardio.github.RudrenduPaul
  158. skillguardio.github.RudrenduPaul
  159. slop-evalio.github.RudrenduPaul
  160. swarm-rd-orchestratorio.github.RudrenduPaul
  161. swarmmeshio.github.RudrenduPaul
  162. taskswarmio.github.RudrenduPaul
  163. teamspendio.github.RudrenduPaul
  164. tenantguardio.github.RudrenduPaul
  165. tokentrustio.github.RudrenduPaul
  166. toolgovernio.github.RudrenduPaul
  167. truesignalio.github.RudrenduPaul
  168. truthrouteio.github.RudrenduPaul
  169. workloadtruthio.github.RudrenduPaul
  170. workspaceguardio.github.RudrenduPaul
  171. mysql-legacy-mcpio.github.Rufflet
  172. assay-mcp-serverio.github.Rul1an
  173. compendio-mcpio.github.RuloGB
  174. agentpayio.github.Rumblingb
  175. flux-cloud-mcpio.github.RunOnFlux
  176. gatekeeperio.github.Runestone-Labs
  177. runewardio.github.Runewardd
  178. mcpio.github.Runware
  179. alya-hubio.github.Rupert1987 · 5 tools
  180. agent-harnessesio.github.RyanAlberts
  181. noaa-tides-and-currents-mcpio.github.RyanCardin15
  182. prompt-timeio.github.RyanJamesStewart
  183. autorank-mcpio.github.RyanKramer · 18 tools
  184. pixelpanda-mcpio.github.RyanKramer · 37 tools
  185. rankedtoday-mcpio.github.RyanKramer · 8 tools
  186. shippost-mcpio.github.RyanKramer
  187. summitflow-mcpio.github.RyanKramer · 9 tools
  188. wisegrid-mcpio.github.RyanKramer · 12 tools
  189. ryvo-gatewayio.github.Ryvonetwork
  190. ryvo-protocolio.github.Ryvonetwork
  191. acceleratorsio.github.S2TConsulting
  192. cursor-historyio.github.S2thend · 8 tools
  193. agent-tasker-mcpio.github.S3bRR
  194. saihm-mcpio.github.SAIHM-Admin · 8 tools
  195. saihm-mcp-server-proio.github.SAIHM-Admin
  196. hana-cliio.github.SAP-samples
  197. fiori-mcp-serverio.github.SAP
  198. mdk-mcp-serverio.github.SAP · 5 tools
  199. clover-mcpio.github.SBolivarLoL · 56 tools
  200. seo-toolsio.github.SEODesignLab · 5 tools

Back to the index

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.