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MCP servers without declared environment variables

The manifest explicitly declares no environment variable. That is the empty value of a piece of original data, not "not recorded".

34,377 servers 80% 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 16,851 to 16,900 of 34,377

Entries
RxNorm MCP by usefulapiio.usefulapi/rxnorm
RxRadario.github.labrat-0/rxradar
Rxnormio.github.pipeworx-io/rxnorm
Ryan Lindseyme.ryanlindsey/ryanlindsey-me
Rychlá Hypo – Czech mortgagescz.rychlahypo/mortgages
RymdenKollen — Swedish Space & Astronomyio.github.jannegpriv/rymdenkollen
Ryufincom.ryufin/stocks
Ryxellcom.ryxell/mcp
S+S Agenticorg.shortandsweet.agentic/doors
S-Bike Training Hubio.github.JHarp199345/s-bike-hub
S-expression paren count, body discardedio.github.sadri-dridi/sexp-ok
S/MIME PKCS7 fence, body discardedio.github.sadri-dridi/smime-ok
SAAX Protocolio.github.bryantrudy24/saax-protocol
SABESP: Download de Contaio.github.mcp-dir/contas_sabesp_download_conta-mcp
SABESP: Lista de Instalaçõesio.github.mcp-dir/contas_sabesp_lista_instal-mcp
SACS.ai MCP — California School District Financial Dataai.sacs/sacs-mcp
SAGE Infinite Searchio.github.talktosims/sage-infinite-search
SAGE Wrapperio.github.PsYcGoD/sage
SAGE — Solver-Augmented Grounding Engineio.github.pragnakar/sage-solver-mcp
SAIJ — Jurisprudencia Argentinaio.github.hernan-cc/saij-mcp
SAIKYO: pay from Russiaexchange.saikyo/saikyo
SAKH — Ayatollah Khamenei Research Corpusuk.sadiqoon/sakh
SALT19 Agent Utility Gridio.github.GabrielAllit1/salt19-agent-utility-grid
SAM.gov Contract Opportunitiesio.github.Plainfold/sam-gov-contract-opportunities
SAMHSA Behavioral Healthcom.olyport/samhsa
SAMHSA Treatment Locatorcom.olyport/treatment-locator
SAMOS e-commercecom.samos-e/samos
SAMRUM — Family Personality Insightsio.samrum/mcp
SAP ABAP MCPio.github.Coaspe/sap-abap-mcp
SAP HANA CLIio.github.SAP-samples/hana-cli
SAP SuccessFactorsio.github.wudaoyou/successfactors-toolkit
SAT69 — Listas del SAT (69 y 69-B del CFF)io.github.edbror/sat69-mcp
SAVORDISHio.github.rodeldoria/savor-dish
SBChart2.0 MCPkr.co.softbowl/sbchart2
SBGrid3.0 MCPkr.co.softbowl/sbgrid3
SBOMApp - SBOM Generator & Vulnerability Scannerio.github.mcpsbom/sbom-mcp
SBORxyz.sbor/sbor
SCA Zandomeni — Timișoaraeu.zandomeni/legal-content
SCHISM Model Setup MCP Serverio.github.mansurjisan/schism-mcp
SCHISM Model Setup MCP Serverio.github.oceanmodeling/schism-mcp
SCModelingcom.scmodeling/public
SCR Banco Central (Detalhado)io.github.mcp-dir/scr_bacen_detalhado-mcp
SCR Banco Central (Resumo)io.github.mcp-dir/scr_bacen-mcp
SCREAMING_SNAKE charset, value discardedio.github.sadri-dridi/screaming-ok
SCRIPTMASTERLABS — SqueezeOS MCPcom.scriptmasterlabs/squeezeos
SCSS rule count, body discardedio.github.sadri-dridi/scss-ok
SCSU BOM presence, input discardedio.github.sadri-dridi/scsu-sig
SCSU window-tag count, input discardedio.github.sadri-dridi/scsu-ok
SCVD General Storestore.scvd/general-store
SDSentry — SDS Lookup & OSHA HazComcom.0xpi.sdsentry/sds-lookup

All 34,377 entries in the list, with filters and pagination

What this category selects

What this category selects
Environment variables (raw)nothing declared
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

  • Environment variables (raw) is the complete, sorted enumeration of what a manifest declares. So "nothing declared" means exactly that and nothing else: an entry that also declares something different is not in this category.
  • The empty value means "the source explicitly declares nothing here". It does not mean "not recorded": what was never recorded is in no category of this property.

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

Repository platform (raw)

34,359
Repository platform (raw)
github22,536 66 %
nothing declared11,750 34 %
gitlab73 0.2 %

not recorded for 18 entries

Repository URL listed

34,377
Repository URL listed
yes22,620 66 %
no11,757 34 %

Delivery form (raw)

34,359
Delivery form (raw)
remote25,207 73 %
package7,921 23 %
package and remote734 2.1 %
neither497 1.4 %

not recorded for 18 entries

Execution location

34,377
Execution location
remote25,358 74 %
local9,019 26 %

Icon formats (raw)

34,359
Icon formats (raw)
nothing declared30,450 89 %
image/png2,354 6.8 %
image/png, image/svg+xml811 2.4 %
image/svg+xml656 1.9 %
image/webp47 0.1 %
image/jpeg31 0.1 %

and 6 more values · not recorded for 18 entries

Schema version of the raw record (raw)

34,359
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json31,958 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,271 3.7 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json499 1.5 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json491 1.4 %
https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json132 0.4 %
https://static.modelcontextprotocol.org/schemas/2025-12-11/server.schema.json3 0.0 %

and 5 more values · not recorded for 18 entries

Per property, the measured values inside this category. The share refers to the 34,377 entries of the category, not to the registry. Shown are 6 of 8 properties: those whose values spread the most inside this category.

The same category 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. 34,377 entries at 200 each are 172 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 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 without declared required secrets 36,559 entries in this category32,082 shared MCP servers without a declared package registry 25,719 entries in this category25,719 shared Remotely executed MCP servers 25,476 entries in this category25,358 shared MCP servers over streamable-http only 24,232 entries in this category24,130 shared MCP servers with a repository URL 30,564 entries in this category22,620 shared Remote MCP servers with a repository URL 14,228 entries in this category14,121 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/ohne-umgebungsvariablen?seite=338