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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. privacy-manifest-lintio.github.jmshinhwa
  2. proto-wire-break-checkio.github.jmshinhwa
  3. pyproject-release-gateio.github.jmshinhwa
  4. pytest-deprecation-lintio.github.jmshinhwa
  5. robots-txt-ai-crawler-auditio.github.jmshinhwa
  6. security-headers-csp-lintio.github.jmshinhwa
  7. sepa-pain001-reject-lintio.github.jmshinhwa
  8. sfdx-retirement-lintio.github.jmshinhwa
  9. sql-card-data-lintio.github.jmshinhwa
  10. tax-year-constant-drift-lintio.github.jmshinhwa
  11. tdm-reservation-lintio.github.jmshinhwa
  12. terraform-provider-pin-lintio.github.jmshinhwa
  13. tls-cert-lifetime-lintio.github.jmshinhwa
  14. vsix-publish-lintio.github.jmshinhwa
  15. wcag21-aa-legal-baseline-auditio.github.jmshinhwa
  16. wcag22-css-lintio.github.jmshinhwa
  17. wordpress-privacy-lintio.github.jmshinhwa
  18. x402-agent-toolsio.github.jmthomasofficial
  19. x402-mcp-serverio.github.jmthomasofficial
  20. shellwardio.github.jnMetaCode
  21. clawaimailio.github.joansongjr
  22. rustunnelio.github.joaoh82 · 6 tools
  23. codmirio.github.jobrayan
  24. aemet-mcpio.github.jocarrd
  25. magentaa11yio.github.joe-watkins
  26. metamodelio.github.joegra2003 · 3 tools
  27. Knapcode.SampleMcpServerio.github.joelverhagen
  28. agent-payio.github.joepangallo
  29. cloud-agentio.github.joepangallo
  30. mcp-audit-serverio.github.joepangallo
  31. mcp-server-agent-analyticsio.github.joepangallo
  32. mcp-server-indexforgeio.github.joepangallo
  33. mcp-server-research-signalsio.github.joepangallo
  34. mcp-server-security-auditio.github.joepangallo
  35. web-recon-agentio.github.joepangallo
  36. doctree-mcpio.github.joesaby
  37. pacioliio.github.john-broadway
  38. proximo-proxmoxio.github.john-broadway
  39. agent-passportio.github.johnInarti
  40. fractalaiio.github.johnInarti
  41. tenio.github.johnbeans
  42. ClaudeSmalltalkio.github.johnmci · 15 tools
  43. jcas-mcpio.github.johnnyclem
  44. tokenknowsio.github.johnnywuj81
  45. pyghidra-liteio.github.johnzfitch
  46. fcopio.github.joinwell52-AI
  47. smart-webio.github.jojo-labs
  48. web-task-apiio.github.jojo-labs
  49. deixisio.github.jolars
  50. anchordbio.github.jolovicdev · 21 tools
  51. live-translate-mcpio.github.jolucashornung · 3 tools
  52. hello-mcp-registryio.github.jonathanhefner
  53. tronbyt-mcpio.github.jonfishr
  54. frontrun-mcp-serverio.github.jongall45
  55. dotnet-mcpio.github.jongalloway · 5 tools
  56. web-embeddingio.github.jongko54
  57. varosityio.github.jonkludt
  58. hue-ble-mcpio.github.jonnyblankinship · 8 tools
  59. azure-updatesio.github.jonnybottles
  60. m365-roadmapio.github.jonnybottles
  61. patch-tuesdayio.github.jonnybottles
  62. lastsaasio.github.jonradoff
  63. lightcmsio.github.jonradoff
  64. mcp-serverio.github.jonybur-oc
  65. mcp-serverio.github.jonybur
  66. sevdesk-mcpio.github.joosthel · 7 tools
  67. dokploy-mcp-serverio.github.jordanburke
  68. joplin-mcp-serverio.github.jordanburke · 12 tools
  69. oura-ring-mcp-serverio.github.jordanburke
  70. reddit-mcp-serverio.github.jordanburke
  71. ssh-client-mcp-serverio.github.jordanburke · 4 tools
  72. loreio.github.jordanhindo
  73. wc26io.github.jordanlyall · 18 tools
  74. verychic-mcpio.github.jordantete · 2 tools
  75. markdown-document-searchio.github.jorgell23-sys
  76. mdcxio.github.jorgell23-sys
  77. reddit-mcpio.github.jorgen-k
  78. kadenzo-mcpio.github.jors7 · 23 tools
  79. uniprot-mcpio.github.josefdc
  80. fixed-income-mcpio.github.joselillotrax-cell
  81. zahoriio.github.josesepulvedapino
  82. comunioio.github.josetorronteras
  83. loopbackio.github.joshidikshant
  84. basaltio.github.joshiii-xyz
  85. ovrin-mcpio.github.joshluberisse
  86. exiftoolio.github.joshmsimpson · 4 tools
  87. factsetsio.github.joshua-auchincloss · 49 tools
  88. paper-chaser-mcpio.github.joshuasundance-swca · 63 tools
  89. flocks-mcpio.github.jotapeconsultoria
  90. lokkaio.github.jozrahq
  91. first100io.github.jpalepu
  92. unicefstats-mcpio.github.jpazvd
  93. payfastio.github.jpbester · 13 tools
  94. graylog-mcpio.github.jperelli · 18 tools
  95. task-orchestratorio.github.jpicklyk
  96. shopify-operations-mcpio.github.jpka · 6 tools
  97. sw-postgres-mcpio.github.jpka · 1 tools
  98. pic-genio.github.jqknono
  99. ripe-atlasio.github.jrelph · 13 tools
  100. swiftforgeio.github.jrlingyin888
  101. filoo-mcpio.github.jrlprost
  102. ducklabio.github.jrullan
  103. icloud-docs-mcpio.github.js713-lab
  104. sonicmatch-mcpio.github.js713-lab
  105. mcpgoio.github.jschoemaker · 11 tools
  106. mcp-server-servicenowio.github.jschuller · 19 tools
  107. jsc-typescript-ast-mcpio.github.jscoobyced
  108. ignition-mcpio.github.jsgorana
  109. briefingsio.github.jshelley
  110. synter-adsio.github.jshorwitz
  111. enzymeio.github.jshph
  112. twscrape-twitter-mcpio.github.jsilets
  113. json-contractsio.github.json-contracts
  114. asana-mcp-serverio.github.jtalk22
  115. slack-mcp-serverio.github.jtalk22
  116. crossref-mcpio.github.jtl-neo
  117. magento-cloudio.github.juan-cinto-infracommerce · 15 tools
  118. gam-seller-mcp-nodeio.github.juan-sibbo
  119. secop-mcp-serverio.github.juandavidsernav
  120. securecodeio.github.juanisidoro · 17 tools
  121. devspeakio.github.juanjaragavi
  122. sdd-mcpio.github.juanklagos
  123. lunchmoney-appio.github.juftin
  124. lustreio.github.jugbeep
  125. k-data-mcpio.github.juh5ng · 13 tools
  126. korea-stock-research-mcpio.github.juh5ng · 13 tools
  127. arnoio.github.julianbei
  128. wikimothio.github.juliangeymonat-jpg
  129. steam-mcp-serverio.github.julianmeyerr
  130. formlab-mcpio.github.juliu1980
  131. entyrix-mcpio.github.juliusgerman · 10 tools
  132. drissionpage-mcpio.github.jumodada
  133. obsidian-everywhereio.github.junnnnnw00
  134. chemdraw-mcpio.github.jurimaxam-dotcom
  135. amazon-in-mcp-serverio.github.justadityaraj
  136. slack-lists-mcpio.github.justadityaraj · 8 tools
  137. expense-mcpio.github.justfsl50 · 10 tools
  138. agent-gatewayio.github.justhandledlabs
  139. sagemath-mcp-serverio.github.justice8096 · 10 tools
  140. contract-risk-review-mcpio.github.justingyang218 · 4 tools
  141. brainstormrouterio.github.justinjilg
  142. loyaltyvipio.github.justinmont84
  143. modrinth-mcpio.github.justinscott12 · 7 tools
  144. xcforgeio.github.justinthevoid
  145. orbit-lifecycle-mcpio.github.justinwilliames
  146. omnarai-mcpio.github.justjlee · 7 tools
  147. entrolyio.github.juyterman1000
  148. sanctumio.github.jwgale
  149. nudge-mcpio.github.jwill824
  150. apple-voice-memo-mcpio.github.jwulff · 5 tools
  151. whisper-mcpio.github.jwulff · 3 tools
  152. modusop-mcpio.github.jwwd-repos · 9 tools
  153. ftirfun-mcpio.github.jxbaoxiaodong
  154. gemini-audio-mcpio.github.jxoesneon
  155. ultranix-mcpio.github.jxoesneon
  156. a2a-trustgateio.github.jyswee
  157. agenticmemoryio.github.jyswee
  158. ainpc-cliio.github.jyswee
  159. analygaio.github.jyswee
  160. authshoreio.github.jyswee
  161. buggaziio.github.jyswee
  162. canvasaasio.github.jyswee
  163. comiceditorialio.github.jyswee
  164. gpusmarketio.github.jyswee
  165. secretcarouselio.github.jyswee
  166. sslwebsitesio.github.jyswee
  167. taufunctionsio.github.jyswee
  168. weselltoursio.github.jyswee · 21 tools
  169. pdf-mcpio.github.jztan · 13 tools
  170. redmine-mcp-serverio.github.jztan · 5 tools
  171. mcp-tmuxio.github.k8ika0s · 27 tools
  172. gofactio.github.kOlapsis
  173. mcp-power-automateio.github.kaael1
  174. project-memory-mcpio.github.kaaustubh · 7 tools
  175. mcp-serverio.github.kadam-official
  176. 402sentinel-mcpio.github.kaditang
  177. agent-wallet-mcpio.github.kaditang
  178. engramio.github.kael-bit
  179. kaganio.github.kagan-sh
  180. rtl-mcpio.github.kahlelhawary-art
  181. mantis-mcpio.github.kahlilashanti
  182. kaiio.github.kailayerhq
  183. mcp-ephemerisio.github.kairosastro-sketch · 19 tools
  184. kitsune-mcpio.github.kaiser-data
  185. twitterapi-io-mcp-serverio.github.kaitoInfra
  186. nasa-imagesio.github.kaitoy · 2 tools
  187. deepmiroio.github.kakarot-dev
  188. esim-mcpio.github.kakha13 · 7 tools
  189. kakuninio.github.kakunin-ai · 3 tools
  190. authproofio.github.kaleckh
  191. warehouse-mcpio.github.kalehdoo
  192. whatsapp-macosio.github.kalki-kgp · 8 tools
  193. weatherio.github.kambleaa007
  194. db2toon-mcpio.github.kamil5b
  195. agentic-diariesio.github.kandikandikandi
  196. k8s-mcp-goio.github.kaneg
  197. realhandsio.github.kanishka089
  198. kansei-mcp-serverio.github.kansei-link
  199. phoenix-mcp-serverio.github.kant19801201behax5
  200. mcp-opa-authzio.github.kanywst · 4 tools

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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.