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 9,751 to 9,800 of 18,300
| Universal Blockchain MCP | io.github.nirholas/universal-crypto-mcp |
|---|---|
| Universal Screenshot MCP | io.github.sethbang/screenshot-server |
| Unl | ai.unlimitless/unl |
| Unlisted Property Search | com.unlistedinc/unlisted |
| Unlock SaaS | io.github.kindrat86/unlocksaas |
| Uno Platform | uno.platform/uno |
| Unpaywall | io.github.pipeworx-io/unpaywall |
| Unplain | io.unplain/unplain |
| Unquant | ai.unquant/unquant |
| UnrealMCP — AI Bridge for Unreal Engine 5 | io.github.aadeshrao123/unreal-mcp |
| Unreasonable Eco | eco.unreasonable/mcp |
| Unshift | io.github.unshift-ai/unshift |
| Unsplash | io.github.pipeworx-io/unsplash |
| Unstoppable Domains | com.unstoppabledomains/mcp-server |
| Unstructured Transform | io.unstructured/transform |
| Untap | io.github.aneduaim/untap-mcp |
| Untappd MCP by UnClick | io.github.malamutemayhem/untappd |
| Unterm | io.github.zhitongblog/unterm |
| Unwritten | io.github.Byggarepop/unwritten |
| Unyly Gateway | org.unyly/gateway |
| UpToCode | io.github.DDYRich72/uptocode |
| Uplink | build.uplink/uplink |
| Upload-Post | com.upload-post/mcp |
| Uprampr Marketplace | com.uprampr/marketplace |
| Uproad | design.uproad/uproad |
| Upsalt Booking | io.github.Everyways/upsalt-booking |
| Upshift | com.upshiftsites/mcp |
| UptimeProbe | io.github.therealMrFunGuy/uptime-probe |
| UptimeRobot | com.uptimerobot/uptimerobot |
| Uptimeify | io.uptimeify/mcp-server |
| Uptimepage | dev.uptimepage/uptimepage |
| Urantia Papers | dev.urantia/urantia-papers |
| Url | io.github.pipeworx-io/url |
| Urlhaus | io.github.pipeworx-io/urlhaus |
| Urlscan Io | io.github.pipeworx-io/urlscan-io |
| Uruguay Invoices (DGI e-Factura CFE, merchant-signed SOAP relay) | app.wishpool/uruguay-invoice-mcp |
| Uruguay Payments (Mercado Pago — Mercado Pago wallet) | app.wishpool/uruguay-payments-mcp |
| Us Gov Contracts | io.github.pipeworx-io/us-gov-contracts |
| Us Iso Grid | io.github.pipeworx-io/us-iso-grid |
| Us News Feeds | io.github.pipeworx-io/us-news-feeds |
| Usajobs | io.github.pipeworx-io/usajobs |
| Usaspending | io.github.pipeworx-io/usaspending |
| Usda Fdc | io.github.pipeworx-io/usda-fdc |
| UseMyContext | io.github.usemycontext/usemycontext |
| UseWait | com.usewait/waitlist |
| UsedBikeCenter ZAMA バイク・原付の買取査定 (Japan motorcycle buyback) | com.shonanfarm/zama-bike-kaitori |
| User Agent Parser API | io.github.Br0ski777/user-agent-parser |
| UserGuiding | io.github.userguiding/mcp |
| UserTapes | io.github.mcdca/usertapes-mcp |
| UserTold | io.github.krasnoperov/usertold |
All 18,300 entries in the list, with filters and pagination
tracevero · https://tracevero.com/en/themen/ohne-umgebungsvariablen?seite=196