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MCP servers over stdio only

MCP servers whose manifest declares stdio as its only transport. They run as a local process and communicate over standard input and output.

13,862 servers 32% of 42,727 in the directory

This category in numbers

The most frequent value per property, counted across the entries of this category. The full distribution is further down.

Entries

Filter further

Entries 3,401 to 3,450 of 13,862

Entries
Promptlint MCPio.github.sean-sunagaku/promptlint-mcp
Pronunciation & Voice Coachio.github.JuhongPark/pronunciation
Proof CLI (unofficial)io.github.tsarlewey/proof-cli
ProofFlowio.github.Hyperion-GPU/proofflow
ProofSlipai.proofslip/mcp-server
ProofStreamio.github.ProofStreamai/proofstream-mcp
Proofpointio.github.wyre-technology/proofpoint-mcp
Proofpointio.github.WYRE-AI/proofpoint-mcp
Proofpoint Essentialsio.github.WYRE-AI/proofpoint-essentials-mcp
Proofpoint MCPio.github.Servosity/proofpoint-mcp
Prop Firm Deal Finderio.github.chrisbusbin-pixel/propfirmdealfinder
ProspectAPIsio.github.ProspectAPIs/prospectapis-mcp
Proton Bridge MCPcom.considus/proton-bridge-mcp
Proton Drive CLI MCPio.github.borealstack/proton-drive-cli-mcp
Proton Mail (unofficial)io.github.sethbang/proton-mail-mcp
Proton Safe MCPio.github.fbossiere/proton-safe-mcp
Provably Fairapp.promptcoin/provably-fair
Provar MCP Serverio.github.ProvarTesting/provar
ProvenPaidcom.provenpaid/mcp
ProvenToolsio.github.proventools/proventools
Provena Agent Memoryio.github.admiralpunk/provena-memory
Proxbaseio.github.virtbase/proxbase
Proximo — the Proxmox MCP you can hand the keysio.github.john-broadway/proximo-proxmox
Proxmox AIopsio.github.AIops-tools/proxmox-aiops
Proxmox MCP is an opinionated MCP serverio.github.sergelogvinov/proxmox-mcp
ProxmoxMCP-Plusio.github.RekklesNA/proxmox-mcp-plus
Proxy AIopsio.github.AIops-tools/proxy-aiops
Proxy Doctorio.github.Jiansen/proxy-doctor
Pseudolife Memoryio.github.Pseudogiant-xr/pseudolife-mcp
PubLedgeio.github.snapsynapse/publedge
PubNub MCP Serverio.github.pubnub/mcp-server
PubShipio.github.pubship/pubship
Public Browserio.github.Silbercue/public-browser
Public Official Asset Disclosure (공직자 재산공개)io.github.yujiseok/public-official-mcp-server
PublicSafetyAPIdev.publicsafetyapi/publicsafetyapi-mcp
Puenteoio.github.mano7onam/puenteo
PullPush Redditio.github.jacklenzotti/pullpush-mcp
Pullzipio.github.work517/archiveflow
PulpMinerio.github.pulpminercom/pulpminer-mcp
Pump SDK MCP Serverio.github.nirholas/pump-fun-sdk
PumpFun Claims Botio.github.nirholas/pumpfun-claims-bot
Purify Security Feedsio.github.eason4kim-rocket/purify-feeds-mcp
PushEngageio.github.awesomemotive/pushengage-mcp
Pusher Channelsio.github.CrashBytes/pusher-mcp-server
Pushover Notificationsio.github.joshuawowk/pushover-mcp
PuzzleTideio.github.catorch/puzzletide
PyEuropePMCio.github.JonasHeinickeBio/pyeuropepmc
PyMemoryEditorio.github.JeanExtreme002/PyMemoryEditor
PyScrappyio.github.mldsveda/pyscrappy
PySide6 MCPio.github.com55/pyside6-mcp

All 13,862 entries in the list, with filters and pagination

What this category selects

What this category selects
Transports (raw)stdio
measured directly

A derived value carries its original data beside it; the derivation rule is published, with a version, on the methodology page.

Caveats, distribution and query

What this category does not say

  • Transports (raw) is the complete, sorted enumeration of what a manifest declares. So "stdio" means exactly that and nothing else: an entry that also declares something different is not in this category.
  • This category shares 13,856 of its 13,862 entries with "MCP servers available as a package only" (14,911). Both are measured from different original data; that they hit almost the same set is a finding, not a rule.

What is measured is what a manifest declares, not what a piece of software does. This registry fetches no repository URL, no endpoint and no package index; nothing here is verified. Which value comes from which source, and by which rule it was formed, is set out in the Methodology.

Every sentence here follows from the condition above, not from an assessment.

How this category is distributed

Required secrets declared

13,862
Required secrets declared
no10,965 79 %
yes2,897 21 %

Schema version of the raw record (raw)

13,856
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json12,829 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json542 3.9 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json322 2.3 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json123 0.9 %
https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json37 0.3 %
https://static.modelcontextprotocol.org/schemas/2025-12-11/server.schema.json2 0.0 %

and 1 more values · not recorded for 6 entries

Repository platform (raw)

13,856
Repository platform (raw)
github13,234 95 %
nothing declared608 4.4 %
gitlab14 0.1 %

not recorded for 6 entries

Repository URL listed

13,862
Repository URL listed
yes13,254 96 %
no608 4.4 %

Icon formats (raw)

13,856
Icon formats (raw)
nothing declared13,293 96 %
image/png405 2.9 %
image/svg+xml102 0.7 %
image/png, image/svg+xml51 0.4 %
image/jpeg3 0.0 %
image/webp2 0.0 %

not recorded for 6 entries

Path argument present

13,862
Path argument present
no13,434 97 %
yes428 3.1 %

Per property, the measured values inside this category. The share refers to the 13,862 entries of the category, not to the registry.

The same category through the interface

curl -s "https://api.tracevero.com/v1/eintraege?art=mcp_server&roh_transportarten=stdio&grenze=200"

The command carries exactly the condition of this page. 13,862 entries at 200 each are 70 requests; the total is in the X-Gesamt header.

Changes to these entries

https://tracevero.com/aenderungen.atom?thema=transport-stdio

Both addresses narrow the change stream to exactly the entries in this category. The feed carries an identifier of its own, so a feed reader keeps it apart from the full stream.

Categories sharing entries with this one

MCP servers available as a package only 14,911 entries in this category13,856 shared Locally executed MCP servers 17,251 entries in this category13,862 shared Local MCP servers with a repository URL 16,336 entries in this category13,254 shared Local MCP servers without declared required secrets 13,393 entries in this category10,965 shared MCP servers over stdio, as an npm package only 8,771 entries in this category8,771 shared Local MCP servers as an npm package only 10,184 entries in this category8,771 shared

Per neighbour its own size and the counted number of shared entries. A category without a single shared entry is not listed here.

tracevero · https://tracevero.com/themen/transport-stdio?seite=69