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".
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
- 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 excerpt.
- The empty value means "the source explicitly declares nothing here". It does not mean "not recorded": what was never recorded is in no excerpt of this property.
- None of this is verified. This registry fetches no repository URL, no endpoint and no package index. What is measured is what a manifest declares, not what a piece of software does.
Every sentence here follows from the condition above, not from an assessment.
How this excerpt is distributed
Delivery form (raw)
18,282| remote | 12,026 66 % |
|---|---|
| paket | 5,359 29 % |
| paket und remote | 520 2.8 % |
| keines | 377 2.1 % |
not recorded for 18 entries
Execution location
18,300| remote | 12,155 66 % |
|---|---|
| local | 6,145 34 % |
Repository platform (raw)
18,282| github | 13,194 72 % |
|---|---|
| nothing declared | 5,069 28 % |
| gitlab | 19 0.1 % |
not recorded for 18 entries
Repository URL listed
18,300| yes | 13,224 72 % |
|---|---|
| no | 5,076 28 % |
Schema version of the raw record (raw)
18,282| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 16,262 89 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 1,021 5.6 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 437 2.4 % |
| https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json | 435 2.4 % |
| https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json | 123 0.7 % |
| https://registry.modelcontextprotocol.io/schemas/2025-12-11/server-bundle.json | 1 0.0 % |
and 3 more values · not recorded for 18 entries
Credentials required
18,300| no | 16,985 93 % |
|---|---|
| yes | 1,315 7.2 % |
Per property, the measured values inside this excerpt. The share refers to the 18,300 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. 18,300 entries at 200 each are 92 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
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 10,401 to 10,450 of 18,300
| Zwier (Group event planner) | app.zwier/mcp |
|---|---|
| Zyberno stock valuation | com.zyberno/zyberno |
| Zyla API Hub | com.zylalabs/api-hub |
| Zyntra - Temp e-mails MCP | io.github.dd77ss/zyntra-mail |
| Zyrax Guard | io.github.tiagosilva07/zyrax-guard |
| Zyrvix Docs | com.zyrvix/docs |
| a2a2p — Agent-to-Agent-to-Physical | com.a2a2p/a2a2p |
| a9n9 Deep Research | net.a9n9/deep-research |
| aNotepad | com.anotepad/notes |
| aTars MCP | ai.aarna/atars-mcp |
| aX | io.github.ax-platform/ax-platform |
| aaaa-nexus — Formally Verified AI Safety APIs | io.github.atomadictech/aaaa-nexus |
| ablakarajanlat.hu Nyílászáró MCP | hu.ablakarajanlat/nyilaszaro-mcp |
| ableton-mind — Ableton Live MCP server | io.github.Pantani/ableton-mind |
| aboard | me.untype/aboard |
| ac.tandem/docs-mcp | ac.tandem/docs-mcp |
| acikpoz | io.github.gulmezeren2-byte/acikpoz |
| acrawl | io.github.Mingye-Lu/acrawl |
| adb-mcp — Android emulator and device control over adb | io.github.iksnerd/adb-mcp |
| advice | io.github.pipeworx-io/advice |
| aeX402 — Cross-Chain DeFi MCP: LINQ, AMM, Bridge, AI | com.aex402/rpc |
| aether studio — AI Image Generation, Editing & Creative Workflow | io.github.chaehomie/aether-studio |
| agency.goji/goji | agency.goji/goji |
| agency.lona/trading | agency.lona/trading |
| agent-check | com.basenull/agent-check |
| agent-device | io.github.callstackincubator/agent-device |
| agent-device | io.github.callstack/agent-device |
| agent-exporter MCP bridge | io.github.xiaojiou176-open/agent-exporter-mcp |
| agent-talk | com.basenull/agent-talk |
| agent-tool | io.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.io | io.agent4/agent4-tenant |
| agentView | de.agentview/agentview-mcp |
| agentburn | io.github.Socialpranker/agentburn |
| agentcentral | to.agentcentral/amazon-seller-central |
| agentdocs | io.github.titov-d/agentdocs |
| agentfeeds.jp | jp.agentfeeds.api/agentfeeds |
| agentfenster | com.agentfenster/agentfenster |
| agenthold | io.github.edobusy/agenthold |
| agenthost | eu.agenthost/agenthost |
| agenticweb.nl — Dutch open data | nl.agenticweb/dutch-data |
| agentmem | io.github.Thezenmonster/agentmem |
| agentmem | io.github.oxgeneral/agentmem |
| agentrace | io.github.ura-tools/agentrace |
| agents.u.cash | io.github.uantum/agents-u-cash |
| agentsbase — Email for AI Agents | net.agentsbase/mcp |
| agentsync (remote) | io.github.jarmstrong158/agentsync-remote |
| agenttool | dev.agenttool/agenttool |
| agentverse | io.github.doc2mcp/agentverse |
All 18,300 entries in the list, with filters and pagination
tracevero · https://tracevero.com/en/themen/ohne-umgebungsvariablen?seite=209