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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 19,356 of 25,582 in the registry
in this excerpt 76 % of 25,582 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)

19,338
Delivery form (raw)
remote12,852 66 %
package5,548 29 %
package and remote541 2.8 %
neither397 2.1 %

not recorded for 18 entries

Execution location

19,356
Execution location
remote12,982 67 %
local6,374 33 %

Repository platform (raw)

19,338
Repository platform (raw)
github13,745 71 %
nothing declared5,571 29 %
gitlab22 0.1 %

not recorded for 18 entries

Repository URL listed

19,356
Repository URL listed
yes13,778 71 %
no5,578 29 %

Schema version of the raw record (raw)

19,338
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json17,250 89 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,065 5.5 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json454 2.3 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json441 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

19,356
Required secrets declared
no17,948 93 %
yes1,408 7.3 %

Per property, the measured values inside this excerpt. The share refers to the 19,356 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. 19,356 entries at 200 each are 97 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 21,143 entries in this excerpt17,948 shared MCP servers without a declared package registry 13,264 entries in this excerpt13,264 shared Remotely executed MCP servers 13,061 entries in this excerpt12,982 shared MCP servers over streamable-http only 11,963 entries in this excerpt11,898 shared MCP servers with a repository URL 19,768 entries in this excerpt13,778 shared Remote MCP servers with a repository URL 7,882 entries in this excerpt7,810 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 8,001 to 8,050 of 19,356

Entries
RZ AI Labscom.rzailabs/rzailabs-mcp
Ra Payai.rapay/mcp-server
Race Calendar F1app.racecalendar/f1
Raconteur AI Gatewaycom.getbotlens/raconteur
Radario.github.skyhook-io/radar
Radio Browser MCP by UnClickio.github.malamutemayhem/radiobrowser
RadioChronio.github.sergii-ziborov/radiochron
RadiusOS CRMai.radiusos.www/crm
Radix Wikiwiki.radix/radix-wiki
Radzen Blazor MCPcom.radzen.www/blazor-mcp
Rafe Blandford — career and writingcom.rafeblandford/career
Rafiio.github.heyrafi/rafi-mcp
Ragoraio.github.mregmi/ragora-mcp
RaidRunnernet.raidrunner/raidrunner
Rails AI Contextio.github.crisnahine/rails-ai-context
Rails Agent Skillsio.github.igmarin/rails-agent-skills-mcp
Railway MCPcom.railway/mcp
Raintree Mineralscom.raintreeminerals/public
Raintree Technologytechnology.raintree/public
RaiseKitco.raisekit/raisekit
Rallyspace.rally/mcp-server
RallyProp SBIR Opportunitiesai.rallyprop/gov-funding
Rami Code Reviewreviews.rami/rami
Rampifydev.rampify/rampify-mcp
Ramsai.rams/rams
Random Designio.github.yanislav-igonin/random-design-mcp
RankWorkercom.rankworker/mcp
Rankd ASOdev.rankd/rankd
Rankratio.github.psyb0t/rankrat
Ranomics Platformcom.ranomics/mcp
Rapidlyco.rapidly/rapidly
Rarefied Earth Groundwork MCPio.github.Rarefied-Earth/groundwork
RaroCUAio.github.mectrojohnny/raro-cua
Rasterapp.raster/raster
RatchetX Forecast Arenaio.github.3esign/ratchet
Rate-My-Agentcom.rate-my-agent.mcp/rate-my-agent
RateAPI — live US mortgage, auto, HELOC, personal & deposit ratesdev.rateapi/mcp
RateZip Bank Deposit and Mortgage Ratescom.ratezip/rates
Ravenai.ravenmcp/raven-mcp
Ravenpostst.ravenpo/ravenpost
Rawgio.github.pipeworx-io/rawg
Raygunio.github.MindscapeHQ/mcp-server-raygun
Razeio.github.edinabazi/raze
Razielio.github.tide-foundation/raziel
Rbaio.github.pipeworx-io/rba
Rcsb Pdbio.github.pipeworx-io/rcsb-pdb
Rdapio.github.pipeworx-io/rdap
ReNoUn — Crypto Regime Classificationio.github.98lukehall/renoun
Reach120 writing practiceio.github.reach120/reach120-mcp
Reaction Time Test MCPio.github.rocnubie/reactiontimetest-mcp

All 19,356 entries in the list, with filters and pagination

tracevero · https://tracevero.com/themen/ohne-umgebungsvariablen?seite=161