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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 901 to 950 of 34,377

Entries
Agent Commonsio.github.sibi-narendran/common-agent-network
Agent Commonsdev.workers.slawian.agent-commons/agent-commons
Agent Commonspw.algo.ai/agent-commons
Agent Commsio.github.ExaDev/agent-comms
Agent Communityorg.agentcommunity/mcp
Agent Company Indexcom.agentcompanyindex/directory
Agent Contract Proofdev.workers.mattskowronis.agent-contract-proof/verify-agent-contract
Agent Controlnet.agent-control/agent-control
Agent Coreio.github.kinbinghua-lgtm/agent-core-mcp
Agent Cowork Memoryio.github.rxthlessbeats/agent-cowork-memory
Agent Crawl Readinessio.github.sadri-dridi/agent-crawl-readiness
Agent Credit Bureaucom.agentcreditdata/agent-credit-bureau
Agent Data Toolsio.github.Grit-77/agent-data-tools
Agent Data Toolsio.github.Nutshell2000/agent-data-tools
Agent Dealsio.github.gmahar82-stack/agent-deals
Agent Decision & Evidence Tools (MCP + x402)io.github.PatrickPi1312/eu-compliance
Agent Demandnetwork.agentdemand/agent-demand
Agent Discovery Board by SarnAIio.github.mglbagi/agent-discovery-board
Agent Discovery Board by SarnAIdev.sarnai/agent-discovery-board
Agent Discovery Doctor - llms.txt, agent card, mcp.jsondev.workers.pathwren.www/agent-discovery-doctor
Agent Discovery Indexio.github.sadri-dridi/agent-discovery-index
Agent Discovery Placementio.github.sadri-dridi/agent-discovery-placement
Agent Distributioncom.agentdistributionservices/agent-distribution
Agent Domain Searchcom.agentdomainsearch/mcp-server
Agent Domainsai.clize/domains
Agent Economic Trustdev.workers.caoviedoc.agent-economic-passport/agent-economic-trust
Agent Einstein — Crypto & Market Intelligenceio.emc2ai/einstein
Agent Emailio.github.UseJunior/email-agent-mcp
Agent Email Listcom.agentemaillist.ai/agent-email-list
Agent Email List — Free SMTP Relay for AI Agentscom.agentemaillist.ai/free-transactional-email-smtp-relay
Agent Enhancer Utilitiessite.liberated/agent-utility-lab
Agent Evidence APIio.github.Thx93/agent-evidence-api
Agent Exchangecom.agenticsuperhero/agent-exchange
Agent Exchange by Shekkizhsite.chatgpt.sarath0210.shekkizh-agent-exchange/agent-exchange
Agent Experience Network Live Preflightio.github.solargptnz-dev/agent-experience-network
Agent Facing Catalogio.github.sadri-dridi/agent-facing-catalog
Agent Factoryio.github.usy-pawel/agent-factory
Agent Failure Archiveio.github.HanbeenMoon/agent-failure-archive
Agent Financial Advisorio.github.mytomclinic/agent-financial-advisor
Agent First Listingio.github.sadri-dridi/agent-first-listing
Agent Forum · Free Tools + Open Falsification Challengedev.workers.agent-forum-worker.agent-forum/agent-forum
Agent Groundcrewcom.agentgroundcrew/field-services
Agent Guardrail MCP Serverio.github.JarvisOnM4/agent-guardrail
Agent Guardrailsio.github.logi-cmd/agent-guardrails
Agent Handoffio.github.jordan23wagner-ops/agent-handoff
Agent Help Networkcom.agenthelpnetwork/agent-help-network
Agent Hideoutorg.agenthideout/agent-hideout
Agent Hops For Your Siteio.github.sadri-dridi/agent-hops-for-your-site
Agent Hubio.github.gmannerHJ/agent-hub
Agent Hub - AI-operated public sandbox: demo data, simulated payments, no real bookingscom.videtion.hub/agent-hub

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=19