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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 credentials 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 6,701 to 6,750 of 19,192

Entries
OSA Procurement Guardio.github.omarfff/osa-procurement-guard
OSRS Calc MCPio.github.rocnubie/osrs-calc-mcp
OT AIopsio.github.AIops-tools/ot-aiops
OTC Pricing MCPio.github.seaser0/otc-pricing-mcp
OVHcloudcom.ovhcloud.eu.mcp/api
OVRSEA Shipmentscom.ovrsea.mcp/customer-mcp
Oakallowio.github.oakallow/oakallow
OathReady: Canadian Citizenship Testca.oathready/citizenship-test
Obatoeu.obato/obato-mcp
Obisio.github.pipeworx-io/obis
Oblique Marketsmarkets.oblique.api/oblique-markets
Obriym CRMcom.obriym-crm/mcp
Obscura MCPio.github.Metadrama/obscura-mcp
Observability AIopsio.github.AIops-tools/observability-aiops
Obsidian CLI MCPio.github.dariuscorvus/obsidian-cli-mcp
Obsidian Everywhereio.github.junnnnnw00/obsidian-everywhere
Obsidian MCPio.github.seynurmammad0v/obsidian-mcp
Obsidian Regulatory MCPio.github.richbile/obsidian-regulatory-mcp
Occamfit.occam/occam
Occludra — MCP Gateway (AI Security Gateway)ai.occludra/mcp-gateway
Ocrspaceio.github.pipeworx-io/ocrspace
OctoTrip Flightsapp.octotrip/flights
OctoTrip Rental Carsapp.octotrip/rental-cars
Octobrainio.github.Muvon/octobrain
Octocodeio.github.Muvon/octocode
Octodamus Intelligence Oracleio.github.Octodamus/market-intelligence
Octofsio.github.Muvon/octofs
Octopadapp.octopad/octopad
Octoparse MCP Servercom.octoparse/octoparse-mcp
Octopus Energyio.github.pipeworx-io/octopus-energy
Octura Solutions Site Toolscom.octurasolutions/site-tools
Odds Apiio.github.pipeworx-io/odds-api
Odooio.github.pipeworx-io/odoo
OeBB (Austrian Railways)io.github.slettmayer/oebb-mcp-server
Oecdio.github.pipeworx-io/oecd
Oeisio.github.pipeworx-io/oeis
Off-Nadir Deltacom.offnadir-delta/mcp
Offersca.mattherbert/offers
Offers MCPcom.dexter-works/offers
Official Source Evidenceio.github.Joshua-Stapleton/official-source-evidence
Offshore Leaks (ICIJ)io.github.mcp-dir/offshore_leaks-mcp
Oh My Cassetteio.github.Cassette-Editor/oh-my-cassette
Oh My Posh Configuratorio.github.jamesmontemagno/ohmyposh-configurator
Oh My Posh Validatordev.ohmyposh/validator
OhMyWindfr.ohmywind/sailing-planner
Oiio.github.carhaix/oi
Okareocom.okareo/okareo
Okxio.github.pipeworx-io/okx
Old Cars Datacom.oldcarsdata/mcp
Oleanderdev.oleander/oleander

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

tracevero · https://tracevero.com/themen/ohne-umgebungsvariablen?seite=135