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MCP servers without declared environment variables

The manifest explicitly declares no environment variable. That is the empty value of a raw declaration, not "not recorded".

in this excerpt 19,192 of 25,384 in the registry
in this excerpt 76 % of 25,384 in the registry

What this excerpt selects

What this excerpt selects
Environment variables (raw)nothing declared
measured directly

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

What this excerpt does not say

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 excerpt is distributed

Delivery form (raw)

19,174
Delivery form (raw)
remote12,724 66 %
paket5,516 29 %
paket und remote541 2.8 %
keines393 2.0 %

not recorded for 18 entries

Execution location

19,192
Execution location
remote12,854 67 %
local6,338 33 %

Repository platform (raw)

19,174
Repository platform (raw)
github13,665 71 %
nothing declared5,488 29 %
gitlab21 0.1 %

not recorded for 18 entries

Repository URL listed

19,192
Repository URL listed
yes13,697 71 %
no5,495 29 %

Schema version of the raw record (raw)

19,174
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json17,100 89 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,058 5.5 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json451 2.3 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json437 2.3 %
https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json124 0.6 %
https://registry.modelcontextprotocol.io/schemas/2025-12-11/server-bundle.json1 0.0 %

and 3 more values · not recorded for 18 entries

Required secrets declared

19,192
Required secrets declared
no17,795 93 %
yes1,397 7.3 %

Per property, the measured values inside this excerpt. The share refers to the 19,192 entries of the excerpt, not to the registry. Shown are 6 of 8 properties: those whose values spread the most inside this excerpt.

The same excerpt through the interface

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

The command carries exactly the condition of this page. 19,192 entries at 200 each are 96 requests; the total is in the X-Gesamt header.

Changes to these entries

https://tracevero.com/aenderungen.atom?thema=ohne-umgebungsvariablen

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

Excerpts sharing entries with this one

MCP servers without declared required secrets 20,965 entries in this excerpt17,795 shared MCP servers without a declared package registry 13,132 entries in this excerpt13,132 shared Remotely executed MCP servers 12,934 entries in this excerpt12,854 shared MCP servers over streamable-http only 11,837 entries in this excerpt11,771 shared MCP servers with a repository URL 19,652 entries in this excerpt13,697 shared Remote MCP servers with a repository URL 7,835 entries in this excerpt7,762 shared

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

Entries

Entries 8,951 to 9,000 of 19,192

Entries
Sidereonio.github.neilberkman/sidereon
Sidewayscom.aribadernatal/sideways
Sidewayscom.usesideways/sideways
SigNoz MCP Serverio.github.SigNoz/signoz-mcp-server
SigParsercom.sigparser/sigparser
SigRank — AI Operator Benchmarkingcom.signalaf/sigrank
SigRank — Token Efficiency Leaderboardio.github.SunrisesIllNeverSee/sigrank-mcp
SigVestcom.getsigvest/sigvest
Sigao Li — personal MCP servercom.sigaoli/profile
Sighttrueio.github.kaitzyy-dev/sighttrue
Sigilai.tunnelmind/sigil
Sigistry Plugin Catalogcom.sigistry/plugin-catalog
Sigistry Plugin Catalog (formerly Claude Registry)com.clauderegistry/plugin-catalog
Siglume MCP Gatewaycom.siglume/mcp-gateway
SigmaDiario — Datos de Argentinacom.sigmadiario/datos-argentina
SignNow Api Helper MCPio.github.signnow/sn-api-helper-mcp
SignNow MCP Serverio.github.signnow/sn-mcp-server
SignSimpleapp.signsimple/signsimple
Signado MCPio.signado/mcp
Signal Desk by LarryBuildsAIio.github.LarryLemonBot/signal-desk
Signal Nodus SEC Filingsai.signalnodus/sec-filings
Signal Oracleio.github.NeruoticFarrow/signal-oracle
Signal Sprintspace.manus.signalsprint-mqysbksh/signal-sprint
Signal not Noiseai.lifeisagame/signal-not-noise
SignalBrainio.github.whitestone1121-web/signalbrain
Signalizio.github.signaliz/signaliz-mcp
Signedcom.signed/signed
Signet MCP Toolsio.github.Prismer-AI/signet-mcp-tools
Signvoycom.signvoy/signvoy
Siima eSIMonline.siima/esim
SilbercueSwiftio.github.silbercue/silbercueswift
SilbercueSwift — iOS MCP Serverio.github.Silbercue/silbercueswift
Silicon Analystsio.github.SiliconAnalysts/silicon-analysts
Silicon Friendlycom.siliconfriendly/directory
SiliconBridgeio.github.aataqi-boop/siliconbridge
SimSenseai.simsense/mcp
SimStimai.simstim/mcp
Simapio.github.pipeworx-io/simap
Simbadio.github.pipeworx-io/simbad
Similaridade de Identidade (Argentina)io.github.mcp-dir/similaridade_ar-mcp
Similaridade de Identidade (Brasil)io.github.mcp-dir/similaridade_br-mcp
Similaridade de Identidade (México)io.github.mcp-dir/similaridade_mx-mcp
Simples Nacionalio.github.mcp-dir/simples_nacional-mcp
SimplyPrint: 3D Print Farm Managementio.simplyprint/simplyprint
SimplyScanio.simplyscan/simplyscan
SimplyWarmupcom.simplywarmup/simplywarmup
Simpson Strong-Tie Agentio.github.srotzin/simpson-strong-agent-service
Simsima Connectivityio.github.Willyfab/simsima-connectivity
SingChatorg.singchat/singchat
Singapore Payments (HitPay — PayNow QR)app.wishpool/singapore-payments-mcp

All 19,192 entries in the list, with filters and pagination

tracevero · https://tracevero.com/themen/ohne-umgebungsvariablen?seite=180