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MCP servers over stdio, as an npm package only

The manifest declares stdio as its only transport and npm as its only package registry. The tightest measured cut for a local start.

8,699 servers 21% of 41,867 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 1 to 50 of 8,699

Entries
$THREE Tokenio.github.nirholas/three-token-mcp
.FAF Contextio.github.Wolfe-Jam/faf-mcp
.FAF Contextone.faf/faf-mcp
1C OData MCPio.github.alexgrebeshok-coder/onec-odata-mcp
1Claw Vaultio.github.1clawAI/1claw-mcp
1c-rest-mcpio.github.theYahia/1c-rest-mcp
2D Assets MCPio.github.crony-io/2d-assets-mcp
2kw.aiai.2kw/mcp-server
3D AI Agent Avatario.github.nirholas/3D-AI-Agent-Avatar
3D AR Studioio.github.nirholas/3d-ar-studio
3D CAD Convertercom.contenta-software/cad-converter
A1 Yandex KIT MCPio.github.gistrec/mcp-yandex-kit
A11y Checkcom.a11ychk/mcp
A2AL Daemonio.github.a2al/a2ald
AAI Gatewayio.github.gybob/aai-gateway
ABAPilotio.github.NicoHern/abapilot-mcp
ABN Lookup MCP by UnClickio.github.malamutemayhem/abn
ACR — Agent Composition Recordsio.github.Tethral-Inc/acr
ACR — Agent Composition Recordsio.github.TethralAI/acr
AEM Content Manager (ACM)io.github.wttech/acm-mcp-server
AEMETio.github.mmillan76/aemet-mcp
AENA Flights MCPio.github.MrGo2/aena-mcp
AI Agent Search Optimizationio.github.SeyitKaanGunes/ai-agent-search-optimization
AI AppSecio.github.subodhkc/ai-appsec
AI Diagram Makerio.github.erajasekar/ai-diagram-maker-mcp
AI Incident Lawio.github.snapsynapse/ai-incident-law
AI Model Watchio.github.Khavel/aimodelwatch
AI Price Indexio.github.RoninForge/ai-price-index-mcp
AI Process Manager (AIPM)io.github.agorapassadoagora-debug/aipm
AI Proof of Usio.github.0xddneto/ai-proof-of-us
AI Scannerio.github.Aakashbhardwaj27/ai-scanner
AI Usageio.github.MohitBansal321/ai-usage-mcp
AI Video Enhancer Studiocom.contenta-software/ai-video-enhancer
AI-ERDio.github.codelives/ainecto
AIFeedio.github.denyn1/aifeed-mcp-server
AIGUIio.github.liliang-cn/aigui
AIIM — AI Instant Messengerio.github.lordbasilaiassistant-sudo/aiim-mcp
AINDFio.github.0design/aindf
AIOProductOS Studiocom.aioproductos/mcp-studio
AIPost MCP Serverio.github.AIPOST-EMAIL/mcp-server
AIR SDKio.github.ArcedeDev/air-sdk
AIShield Security Scannerio.github.lm203688/aishield
AIStorageDepotio.github.aistoragedepot-admin/aistoragedepot-mcp
ALTWEB Context Loadersoftware.altweb/altweb-context
APEX PSIio.github.kawal393/apex-psi-mcp
API Key Caseio.github.melavern/api-key-case
API Lockerio.github.apilocker/apilocker
APIFreaks MCPio.github.api-freaks/apifreaks-mcp
ARES (Czech business registry)io.github.milos106/ares-mcp
ARGUS-3 MCP Serverio.github.alexar76/argus3

All 8,699 entries in the list, with filters and pagination

Newest in this category

The 10 entries of this category that this registry listed most recently for the first time and that are not shown above. Ordered by the day first listed, not by any rating.

How it works

Before choosing

This selection matches the complete source declaration. A combination of multiple transports or package sources is a separate value. A category for exactly one value therefore excludes entries declaring additional values. Each entry provides the complete declaration and its source.

What this category selects

What this category selects
Transports (raw)stdio
measured directly
Package registries (raw)npm
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.
  • Package registries (raw) is the complete, sorted enumeration of what a manifest declares. So "npm" means exactly that and nothing else: an entry that also declares something different is not in this category.

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

8,699
Required secrets declared
no6,666 77 %
yes2,033 23 %

Schema version of the raw record (raw)

8,697
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json8,063 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json370 4.3 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json150 1.7 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json84 1.0 %
https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json28 0.3 %
https://registry.modelcontextprotocol.io/v0/schema/2025-12-111 0.0 %

and 1 more values · not recorded for 2 entries

Repository platform (raw)

8,697
Repository platform (raw)
github8,304 95 %
nothing declared386 4.4 %
gitlab7 0.1 %

not recorded for 2 entries

Repository URL listed

8,699
Repository URL listed
yes8,313 96 %
no386 4.4 %

Icon formats (raw)

8,697
Icon formats (raw)
nothing declared8,333 96 %
image/png256 2.9 %
image/svg+xml70 0.8 %
image/png, image/svg+xml34 0.4 %
image/jpeg2 0.0 %
image/webp2 0.0 %

not recorded for 2 entries

Path argument present

8,699
Path argument present
no8,445 97 %
yes254 2.9 %

Per property, the measured values inside this category. The share refers to the 8,699 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&roh_paketquellen=npm&grenze=200"

The command carries exactly the condition of this page. 8,699 entries at 200 each are 44 requests; the total is in the X-Gesamt header.

Changes to these entries

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

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.

Questions about this selection

How do I set up one of these servers in my client?

Open the entry and choose “Build configuration” when a launch template is available. The builder lists the supported clients and identifies the values you need to supply. A generated file does not establish that the server is reachable or works with your installation.

View clients and setup

Are the listed servers free?

Membership of this category says nothing about price. Neither a repository address nor the absence of declared required secrets establishes that a service is free. Check the individual provider’s pricing and access terms.

How can I follow changes to this selection?

Each entry identifies the source and collection date of its declarations. The change stream for this category shows published changes to its entries. You can subscribe to its Atom feed without creating an account.

Follow changes to this category

Categories sharing entries with this one

Local MCP servers as an npm package only 10,092 entries in this category8,699 shared MCP servers as an npm package only 10,186 entries in this category8,699 shared npm packages with a repository URL 9,623 entries in this category8,313 shared MCP servers over stdio only 13,710 entries in this category8,699 shared MCP servers available as a package only 14,740 entries in this category8,697 shared Locally executed MCP servers 17,056 entries in this category8,699 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/stdio-mit-npm