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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

Credentials declared

19,192
Credentials 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 11,001 to 11,050 of 19,192

Entries
Zoning Signalcom.zoningsignal/observatory
ZoningVerdictcom.zoningverdict/mcp
Zoomio.github.pipeworx-io/zoom
Zooza MCP Serverapp.zooza/mcp-server
Zoxron MCPcom.zoxron/mcp
Zwier (Group event planner)app.zwier/mcp
Zyberno stock valuationcom.zyberno/zyberno
Zyla API Hubcom.zylalabs/api-hub
Zyntra - Temp e-mails MCPio.github.dd77ss/zyntra-mail
Zyphecom.zyphe/zyphe-mcp
Zyrax Guardio.github.tiagosilva07/zyrax-guard
Zyrvix Docscom.zyrvix/docs
a2a2p — Agent-to-Agent-to-Physicalcom.a2a2p/a2a2p
a9n9 Deep Researchnet.a9n9/deep-research
aNotepadcom.anotepad/notes
aTars MCPai.aarna/atars-mcp
aXio.github.ax-platform/ax-platform
aaaa-nexus — Formally Verified AI Safety APIsio.github.atomadictech/aaaa-nexus
ablakarajanlat.hu Nyílászáró MCPhu.ablakarajanlat/nyilaszaro-mcp
ableton-mind — Ableton Live MCP serverio.github.Pantani/ableton-mind
ac.tandem/docs-mcpac.tandem/docs-mcp
acikpozio.github.gulmezeren2-byte/acikpoz
acrawlio.github.Mingye-Lu/acrawl
adb-mcp: Android emulator and device control over adbio.github.iksnerd/adb-mcp
adviceio.github.pipeworx-io/advice
aeX402 — Cross-Chain DeFi MCP: LINQ, AMM, Bridge, AIcom.aex402/rpc
aether studio — AI Image Generation, Editing & Creative Workflowio.github.chaehomie/aether-studio
agency.goji/gojiagency.goji/goji
agency.lona/tradingagency.lona/trading
agent-checkcom.basenull/agent-check
agent-deviceio.github.callstackincubator/agent-device
agent-deviceio.github.callstack/agent-device
agent-exporter MCP bridgeio.github.xiaojiou176-open/agent-exporter-mcp
agent-manager.dev documentationio.github.YoanWai/agent-manager-docs
agent-talkcom.basenull/agent-talk
agent-toolio.github.knewstimek/agent-tool
agent-tools (x402 + MCP + A2A directory)io.github.AgentTools-Cloud/agent-tools-mcp
agent-web — URL to LLM-ready markdown: a polite, robots-respecting web page reader (free)io.github.foomworks/agent-web
agent4.ioio.agent4/agent4-tenant
agentViewde.agentview/agentview-mcp
agentburnio.github.Socialpranker/agentburn
agentcentralto.agentcentral/amazon-seller-central
agentdocsio.github.titov-d/agentdocs
agentfeeds.jpjp.agentfeeds.api/agentfeeds
agentfenstercom.agentfenster/agentfenster
agentholdio.github.edobusy/agenthold
agenthosteu.agenthost/agenthost
agenticweb.nl — Dutch open datanl.agenticweb/dutch-data
agentmailkitio.github.ariaxhan/agentmailkit
agentmemio.github.Thezenmonster/agentmem

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

tracevero · https://tracevero.com/themen/ohne-umgebungsvariablen?seite=221