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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".

33,944 servers 80% of 42,239 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 11,701 to 11,750 of 33,944

Entries
MCP Registry Searchio.github.Spacemandomains/mcp-registry-search
MCP Registry Search: Find, Discover & Install MCP Servers & Tools | Directory, Catalog, Marketplaceio.github.lbesecker195/mcp-registry-search-find-mcp-servers-discover-install-mcp-tools-directory-catalog-marketplace
MCP Registry Search: Find, Discover & Install MCP Servers & Tools | Directory, Catalog, Marketplaceio.github.lbesecker195/mcp-registry-search-directory
MCP Registry Search: find and add MCP serversio.github.lbesecker195/mcp-registry-search
MCP Registry Serverai.com.mcp/registry
MCP Registry Validator — Check Endpoints Actually Resolveio.github.operatorsheets/mcp-uptime
MCP Repo Mapperio.github.LovRanRan/mcp-repo-mapper
MCP Request-trackerio.github.crunchtools/request-tracker
MCP Research Agent: Web Scraping Tool for AIcom.ranovam/mcp-research-agent
MCP Risk Ledger MCPcom.clauxel.mcpriskledger/mcpriskledger-mcp
MCP SEO Auditorio.github.petrovicistefan/mcp-seo-auditor
MCP Safety Wardenio.github.gautamvarmadatla/mcpsafetywarden
MCP Sandbox Computer VM for AIio.github.flujo-app/mcp-sandbox-computer-vm-for-ai
MCP Scaleway Functionsio.github.cyclimse/mcp-scaleway-functions
MCP Scan — weekly registry health scansapp.rowb.mcp-scan/weekly
MCP Schema Auditio.github.tylerscomic-lab/mcp-schema-audit-mcp
MCP Search Serverio.github.KazKozDev/search
MCP Security & Vulnerability Auditorio.github.Ansarii/mcp-security-auditor
MCP Security Guardio.github.petrovicistefan/mcp-security-guard
MCP Selection Labio.github.ChanghuLiu/mcp-selection-lab
MCP Server Attestationio.studiomeyer/server-attestation
MCP Server Discovery — new model-context-protocol repos ($0.01/query)com.a2awire/data-model-context-protocol-mcp-server-discovery
MCP Server for Excelio.github.sbroenne/mcp-server-excel
MCP Server for PowerPointio.github.sbroenne/mcp-server-powerpoint
MCP Server for PowerPointio.github.trsdn/mcp-server-ppt
MCP Server for Zerodha Kite Connect APIio.github.Sundeepg98/kite-mcp-server
MCP Shieldio.github.sophiacave/mcp-shield
MCP Slackio.github.crunchtools/slack
MCP Sportio.github.andrequeiroz2/mcp-sport
MCP Stdioio.github.shigechika/mcp-stdio
MCP Stock Analystio.github.PanStories/mcp-stock-analyst
MCP Surface Lintio.github.DLeibner/mcp-surface-lint
MCP TUSS / Rol ANSio.github.mcpassure/mcp-tuss
MCP Tenant Pairio.studiomeyer/tenant-pair
MCP Test Runnerio.github.LovRanRan/mcp-test-runner
MCP Toolbox for Databasesio.github.googleapis/genai-toolbox
MCP Toolbox for Databasesio.github.googleapis/mcp-toolbox
MCP Toplistcom.mcptoplist/mcptoplist
MCP Traceio.github.abhishekash/mcp-trace
MCP Trust & Tool-Poisoning Auditio.github.tylerscomic-lab/mcp-trust-audit-mcp
MCP Trust Indexfund.staas/mcp-trust-index
MCP Validatorcom.wildrunai/mcp-validator
MCP Verification Gate: check an MCP server or an A2A agent before you connect or delegateio.github.ogasurfproject-jpg/hs-verify-gate
MCP Verifyio.sentinelsignal/verify
MCP Wordpressio.github.crunchtools/wordpress
MCP Workboardio.github.crunchtools/workboard
MCP Write Gateio.github.goran-revops/mcp-write-gate
MCP for Adobe Premiere Proio.github.leancoderkavy/premiere-pro
MCP for Ouralink.smirnov/mcp-oura
MCP for Zoteroio.github.AlejandroArnaud/mcp-for-zotero

All 33,944 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)

33,926
Repository platform (raw)
github22,333 66 %
nothing declared11,520 34 %
gitlab73 0.2 %

not recorded for 18 entries

Repository URL listed

33,944
Repository URL listed
yes22,417 66 %
no11,527 34 %

Delivery form (raw)

33,926
Delivery form (raw)
remote24,828 73 %
package7,873 23 %
package and remote731 2.2 %
neither494 1.5 %

not recorded for 18 entries

Execution location

33,944
Execution location
remote24,979 74 %
local8,965 26 %

Icon formats (raw)

33,926
Icon formats (raw)
nothing declared30,197 89 %
image/png2,274 6.7 %
image/png, image/svg+xml722 2.1 %
image/svg+xml645 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)

33,926
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json31,535 93 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,266 3.7 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json495 1.5 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json490 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 33,944 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. 33,944 entries at 200 each are 170 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 36,126 entries in this category31,685 shared MCP servers without a declared package registry 25,337 entries in this category25,337 shared Remotely executed MCP servers 25,096 entries in this category24,979 shared MCP servers over streamable-http only 23,859 entries in this category23,758 shared MCP servers with a repository URL 30,309 entries in this category22,417 shared Remote MCP servers with a repository URL 14,077 entries in this category13,971 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=235