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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 4,401 to 4,450 of 13,862

Entries
Tool Filter MCPio.github.respawn-app/tool-filter-mcp
ToolDrift MCPtech.thecompound/tooldrift
ToolTrust Scannerio.github.AgentSafe-AI/tooltrust-scanner
Toolarsio.github.aixtral/toolars
Toon Memoryio.github.LuiggiVal08/toon-memory
TopSMSio.github.topsms-ghb/topsms-mcp
TopicForgeio.github.yaniswav/topicforge
TopicGateio.github.Dumdart/topicgate
TopoLift Negotiationio.github.TopoLift/topolift-mcp
Toposio.github.Krv-Labs/topos
Toss Investio.github.wi9ine/toss-invest
Total Agent Memoryio.github.vbcherepanov/total-agent-memory
Total CMSio.github.totalcms/total-cms
TouchDesigner Atlasio.github.grigabyte/td-atlas
TourClaim by Copernicanio.github.tourclaim/tourclaim
Towerio.github.Rohanxmalik/tower
Toyota & Lexusio.github.zepgram/toyota
TraceWeaveio.github.gokeshenzhen/traceweave
Trackly CLIio.github.kevinastuhuaman/trackly
TractorBeeam365 MCPio.github.Ringosystems/tractorbeeam-mcp
TradeCheck Local Invoice Reviewio.github.f-tiger/tradecheck
TradeOS Public Intelligenceio.github.agenticsrclab/tradeos-public-intel-mcp
Traildev.usetrail/trail
TrainToolsio.github.AparajeetS/traintools
TransCAPIcom.transcapi/mcp
Transcriptedio.github.r3dbars/transcripted
Transistor MCP Serverio.github.conorbronsdon/transistor-mcp
Trawliaco.trawlia/trawlia-mcp
Trelloio.github.scaratec/trellio-mcp
Trello MCP Serverio.github.Jimdrews/fastmcp-trello
Trello MCP Serverio.github.stucchi/trello
Trendzeist – Google Trends for content ideationio.github.phalkmin/trendzeist-mcp
Trentinaio.github.crunchtools/trentina
Trestlecom.trestlescan/trestle
TridentChain Securityio.github.DevInder1/tridentchain-security
TrigGuardio.github.TrigGuard-AI/trigguard
TriliumNext (trilium-mcp)io.github.OVDEN13/trilium-mcp
TrimScriptio.github.SilverNine/trimscript
Tripwireio.github.aliboIly/tripwire
Tripwireio.github.bonesdefi/tripwire
Tripwire Guard — evidence-first injection scannerio.github.KubaOpoczka/tripwire-guard
Trivia MCP by UnClickio.github.malamutemayhem/trivia
True Memory Fragmentsio.github.kyle641320/true-memory-fragments
True Solar Timeio.github.Shann5/true-solar-time
TrueIconio.github.manikumarkv/trueicon
TrueNAS AIopsio.github.AIops-tools/truenas-aiops
TruePath Officeio.github.JoyTruepath/truepath-office-mcp
TruePath PDFio.github.JoyTruepath/truepath-pdf-mcp
TrueSourceio.github.hangeaiagent/truesource-mcp
TrustAgent — counterparty verificationio.trust-agent/trustagent-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=89