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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 17,586 of 23,407 in the registry
in this excerpt 75 % of 23,407 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

Every sentence here follows from the condition above, not from an assessment.

How this excerpt is distributed

Delivery form (raw)

17,568
Delivery form (raw)
remote11,379 65 %
paket5,303 30 %
paket und remote511 2.9 %
keines375 2.1 %

not recorded for 18 entries

Execution location

17,586
Execution location
remote11,508 65 %
local6,078 35 %

Repository platform (raw)

17,568
Repository platform (raw)
github12,620 72 %
nothing declared4,929 28 %
gitlab19 0.1 %

not recorded for 18 entries

Repository URL listed

17,586
Repository URL listed
yes12,650 72 %
no4,936 28 %

Schema version of the raw record (raw)

17,568
Schema version of the raw record (raw)
https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json15,556 88 %
https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json1,012 5.8 %
https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json438 2.5 %
https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json435 2.5 %
https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json123 0.7 %
https://registry.modelcontextprotocol.io/schemas/2025-12-11/server-bundle.json1 0.0 %

and 3 more values · not recorded for 18 entries

Credentials required

17,586
Credentials required
no16,301 93 %
yes1,285 7.3 %

Per property, the measured values inside this excerpt. The share refers to the 17,586 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://tracevero.com/api/v1/eintraege?art=mcp_server&roh_umgebungsvariablen=&grenze=200"

The command carries exactly the condition of this page. 17,586 entries at 200 each are 88 requests; the total is in the X-Gesamt header.

Changes to these entries

https://tracevero.com/en/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 19,295 entries in this excerpt16,301 shared MCP servers without a declared package registry 11,769 entries in this excerpt11,769 shared Remotely executed MCP servers 11,585 entries in this excerpt11,508 shared MCP servers over streamable-http only 10,515 entries in this excerpt10,451 shared MCP servers with a repository URL 18,250 entries in this excerpt12,650 shared Remote MCP servers with a repository URL 7,015 entries in this excerpt6,945 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 5,951 to 6,000 of 17,586

Entries
OECD MCP Serverio.github.isakskogstad/oecd-mcp
OFAC (Sanções EUA)io.github.mcp-dir/ofac-mcp
OFAC SDN Screeningcom.bonissystems/ofac-sdn-screening
OFACScreen Sanctions Screeningcom.ofacscreen/screening
OGA Antibody Validationio.github.onlygoodantibodies/oga-antibodies
OGForge MCPio.github.dpozimski/ogforge-mcp
OKR Studioio.okrstud/mcp
OKX MCP Serverio.github.aahl/mcp-okx
OMDb Movies MCP by UnClickio.github.malamutemayhem/omdb
OMEGA Memoryio.github.omega-memory/omega-memory
ONCEio.github.GSterlingPress/once
ONE HEART eSIMcom.oneheartesim.mcp/esim
OOTWOracle — Psychedelic Medicine Intelligencecom.ootworacle.www/predictions-server
OPC UA Modelerio.github.node-opcua/node-opcua-modeler-mcp-server
ORA · ORUMio.github.fomosdeimos-gif/ora-mcp
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 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

All 17,586 entries in the list, with filters and pagination

tracevero · https://tracevero.com/en/themen/ohne-umgebungsvariablen?seite=120