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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. normiio.github.NormiHQ
  2. labelchop-mcp-serverio.github.Northy9
  3. talos-mcp-serverio.github.Nosmoht · 28 tools
  4. devops-mcpio.github.NotHarshhaa · 39 tools
  5. mainframe-mcp-serverio.github.NotHarshhaa
  6. hera-agent-unityio.github.NotNull92
  7. spotify-mcp-serverio.github.NovaLux12
  8. novada-mcpio.github.NovadaLabs
  9. proxy4agents-mcpio.github.NovadaLabs · 10 tools
  10. canton-mcpio.github.Noves-Inc · 9 tools
  11. proton-workflow-connectorio.github.NtrpyDev
  12. grok-build-mcp-serverio.github.Nuruvala · 8 tools
  13. inspoio.github.Nutlope
  14. calendly-mcp-serverio.github.NyxToolsDev · 12 tools
  15. claude-memory-managerio.github.NyxToolsDev · 4 tools
  16. dicom-hl7-mcp-serverio.github.NyxToolsDev · 17 tools
  17. quickbooks-mcp-serverio.github.NyxToolsDev
  18. founden-mcpio.github.O-mega-Enterprise
  19. suprsonic-mcpio.github.O-mega-Enterprise
  20. rive-mcpio.github.ODU33104
  21. omophub-mcpio.github.OMOPHub · 13 tools
  22. docspaceio.github.ONLYOFFICE
  23. tiago-dados-abertosio.github.ONSBR
  24. trilium-mcpio.github.OVDEN13 · 16 tools
  25. colber-mcpio.github.Obi49
  26. bun-uiaio.github.ObscuritySRL
  27. umbrielio.github.ObscuritySRL
  28. umami-mcpio.github.ObsidianCorps · 17 tools
  29. octen-mcpio.github.Octen-Team · 6 tools
  30. osmpio.github.Octid-io
  31. crbro-memoryio.github.Octonove · 24 tools
  32. cce-mcp-serverio.github.OdinBot33
  33. rhizome-mcpio.github.Odrin
  34. mcp-serverio.github.Odyssey365
  35. image-viewerio.github.OguntolaIbrahim
  36. mcp-serverio.github.OilpriceAPI · 32 tools
  37. bizfile-mcpio.github.OjasKord
  38. data-compliance-mcpio.github.OjasKord · 3 tools
  39. document-integrity-validator-mcpio.github.OjasKord · 9 tools
  40. hs-code-classifier-mcp-serverio.github.OjasKord · 2 tools
  41. local-model-suitability-mcpio.github.OjasKord · 1 tools
  42. quantum-suitability-validator-mcp-serverio.github.OjasKord · 2 tools
  43. tender-mcpio.github.OjasKord · 5 tools
  44. url-safety-validator-mcpio.github.OjasKord
  45. vat-validator-mcpio.github.OjasKord
  46. mcp-obsidian-via-restio.github.OleksandrKucherenko · 3 tools
  47. composerio.github.OliverGrabner · 16 tools
  48. omnisockit-mcpio.github.OmniSocKit
  49. omnidim-mcp-serverio.github.Omnidim
  50. wakeio.github.Omodaka9375
  51. pqs-mcp-serverio.github.OnChainAIIntel · 5 tools
  52. filesystem-serverio.github.Oncorporation
  53. gretl-mcpio.github.OndrejLapes · 12 tools
  54. mnemeio.github.OnourImpram · 9 tools
  55. open-mcp-registryio.github.OnticX
  56. search-mcp-registryio.github.OnticX
  57. cortex402io.github.Ooak21
  58. mcacpio.github.Oortonaut · 23 tools
  59. task-graph-mcpio.github.Oortonaut
  60. openadapt-agentio.github.OpenAdaptAI
  61. opencage-geocoding-mcpio.github.OpenCageData · 3 tools
  62. openhcsio.github.OpenHCSDev
  63. oid-mcpio.github.OpenImageDebugger
  64. openosintio.github.OpenOSINT · 20 tools
  65. opentrainio.github.OpenTrain-AI
  66. openwebninja-mcpio.github.OpenWeb-Ninja
  67. openfinanceio.github.Openfinanceorg
  68. citewireio.github.Openly-Useful
  69. ophirio.github.Ophir-ai-creator
  70. dark-memory-mcpio.github.Opita-Code
  71. opsmaxxio.github.OpsMaxx
  72. cloud-finopsio.github.OptimNow
  73. db-metadata-extractor-mcpio.github.Optisol-Business · 2 tools
  74. orangeproio.github.OrangeproAI
  75. discord-node-mcpio.github.Oratorian
  76. orbis-mcpio.github.OrbisAPI · 4 tools
  77. orchestraprimeio.github.OrchestraPrime
  78. orderly-mcpio.github.OrderlyNetwork · 5 tools
  79. mcp-packageio.github.OrdersOfMagnitudeLLC
  80. zotioio.github.OrgMentem
  81. orphographio.github.Orphograph
  82. domain-security-mcp-serverio.github.OrtaMarco
  83. mx-fiscal-mcp-serverio.github.OrtaMarco
  84. seo-geo-mcp-serverio.github.OrtaMarco
  85. omnicordio.github.OrygnsCode
  86. opa-mcpio.github.OrygnsCode · 52 tools
  87. email-playbook-mcpio.github.OsamaHassouna
  88. bruno-mcp-studioio.github.Ostico · 16 tools
  89. osu-mcpio.github.Osyanne
  90. mcp-as-a-judgeio.github.OtherVibes
  91. oveccio.github.Ovecc-labs
  92. freeagent-mcp-serverio.github.OxygenBubbles · 42 tools
  93. frostbyteio.github.OzorOwn
  94. scrapewrightio.github.Ozymandias-Owens-2
  95. mcp-arangodb-asyncio.github.PCfVW · 46 tools
  96. job-searchio.github.PJW2004
  97. substrateio.github.PKaldone
  98. primamcpio.github.PLANIT-TECH · 9 tools
  99. zaai-dev-mcpio.github.POLONIBOI
  100. solitaireio.github.PRDicta
  101. nutrient-document-engine-mcp-serverio.github.PSPDFKit
  102. nutrient-dws-mcp-serverio.github.PSPDFKit · 8 tools
  103. agent-spreadsheetio.github.PSU3D0
  104. spreadsheet-mcpio.github.PSU3D0
  105. vibe-check-mcp-serverio.github.PV-Bhat
  106. discord-mcpio.github.PaSympa
  107. packkit-mcpio.github.PackkitJS · 5 tools
  108. packkit-mcpio.github.PackkitLabs · 5 tools
  109. chainwebio.github.Pact-Community-Organization
  110. pactio.github.Pact-Community-Organization
  111. pagerduty-mcpio.github.PagerDuty
  112. i1nio.github.Pakvothe
  113. panelica-mcpio.github.Panelica
  114. pangolinfo-mcpio.github.Pangolin-spg
  115. ableton-mindio.github.Pantani
  116. tdmcpio.github.Pantani
  117. dicomweb-mcp-serverio.github.PantelisGeorgiadis · 9 tools
  118. omni-scannerio.github.Pantheon-LadderWorks
  119. notebooklm-mcp-secureio.github.Pantheon-Security
  120. nandi-proxmox-mcpio.github.PapiScholz
  121. orielio.github.ParadoxInfinite
  122. admob-mcp-serverio.github.ParkSangGwon · 9 tools
  123. chatpptio.github.ParkerDiamond
  124. telegram-notify-mcpio.github.ParthJadhav · 3 tools
  125. tickerrisk-mcpio.github.PasiutusVovere · 4 tools
  126. piia-engramio.github.Patdolitse · 58 tools
  127. patent-precheckio.github.Patent-PreCheck
  128. envspeakio.github.Patrizzos
  129. stylesafeio.github.Patrizzos
  130. stylespeakio.github.Patrizzos
  131. indiestackio.github.Pattyboi101
  132. devkit-for-strapi-mcpio.github.PaulRichez
  133. gitee-mcp-serverio.github.PaulSeth
  134. graph-aave-mcpio.github.PaulieB14
  135. graph-polymarket-mcpio.github.PaulieB14 · 35 tools
  136. subgraph-registry-mcpio.github.PaulieB14
  137. geminiio.github.PavelGuzenfeld · 4 tools
  138. media-forgeio.github.PavelGuzenfeld · 20 tools
  139. yandex-direct-mcp-plusio.github.Pavelsiba
  140. sql-stewardio.github.Pawansingh3889
  141. paydirt-mcpio.github.Paydirt-AI · 22 tools
  142. legalithm-mcp-serverio.github.PedramMadani
  143. ffmpeg-mcpio.github.PedroMarianoAlmeida · 6 tools
  144. perf-mcpio.github.Perf-AI · 4 tools
  145. ledgerio.github.Perseus-Computing-LLC
  146. perseusio.github.Perseus-Computing-LLC
  147. perseus-vaultio.github.Perseus-Computing-LLC
  148. deep-research-mcp-serverio.github.Perufitlife · 3 tools
  149. incomeosio.github.Perufitlife
  150. multi-scraper-mcpio.github.Perufitlife
  151. postwire-mcpio.github.Perufitlife · 5 tools
  152. mcp-light-memoryio.github.PeterPirog
  153. vertaaux-mcpio.github.PetriLahdelma · 29 tools
  154. dav-mcpio.github.PhilflowIO
  155. health-export-mcpio.github.PhilipAD
  156. phi-longevity-prismio.github.Philongevity · 6 tools
  157. audit-trailio.github.PiQrypt · 4 tools
  158. url-manager-mcpio.github.Piccolo123
  159. tech-debt-mcpio.github.PierreJanineh · 16 tools
  160. open-notebookio.github.PiotrAleksander · 8 tools
  161. fortunetellers-handio.github.PistachioPony
  162. pixapi-mcpio.github.Pixapi-AI · 4 tools
  163. opendockio.github.Pollamin · 69 tools
  164. mcpio.github.Polyrama · 10 tools
  165. ponzuio.github.PonzuTech
  166. second-brain-mcpio.github.Portaltocoding
  167. mcpio.github.Postcept · 6 tools
  168. powerportalspro-mcpio.github.Power-Portals-Pro
  169. agent-interop-runtimeio.github.Praket7
  170. browserbashio.github.PramodDutta
  171. qaskillsio.github.PramodDutta
  172. sf-intelligenceio.github.PranavNagrecha
  173. spresh-mcpio.github.PrashantBtkl · 18 tools
  174. weatherio.github.Preethi0716
  175. prefect-mcp-serverio.github.PrefectHQ
  176. bookmcpio.github.Prem5123
  177. dbt-planio.github.PresentJay
  178. freshcontextio.github.PrinceGabriel-lgtm
  179. printrio.github.PrintrFi · 9 tools
  180. signet-mcp-toolsio.github.Prismer-AI
  181. actionforgeio.github.PritaS
  182. hunchio.github.PrithviSeran
  183. mcp-server-kicadio.github.ProductOfAmerica · 109 tools
  184. mediawiki-mcp-serverio.github.ProfessionalWiki · 51 tools
  185. lurkio.github.ProgenyAlpha · 2 tools
  186. bind-alias-mcpio.github.Prohect · 9 tools
  187. bind-alias-plus-mcpio.github.Prohect · 9 tools
  188. tactusio.github.ProjectAILiberation · 11 tools
  189. promptbranchio.github.PromptBranch
  190. just-mcpio.github.PromptExecution
  191. bexio-mcp-serverio.github.PromptPartner
  192. proofstream-mcpio.github.ProofStreamai
  193. leakrank-guardio.github.ProtoTeemo
  194. provario.github.ProvarTesting
  195. provenonceio.github.ProvenonceAI
  196. rechtspraak-mcpio.github.Prudai · 6 tools
  197. sageio.github.PsYcGoD
  198. pseudolife-mcpio.github.Pseudogiant-xr
  199. che-ical-mcpio.github.PsychQuant
  200. agent-data-apiio.github.Ptrgit1

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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.