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)
18,096| remote | 11,869 66 % |
|---|---|
| paket | 5,338 29 % |
| paket und remote | 513 2.8 % |
| keines | 376 2.1 % |
not recorded for 18 entries
Execution location
18,114| remote | 11,998 66 % |
|---|---|
| local | 6,116 34 % |
Repository platform (raw)
18,096| github | 13,054 72 % |
|---|---|
| nothing declared | 5,023 28 % |
| gitlab | 19 0.1 % |
not recorded for 18 entries
Repository URL listed
18,114| yes | 13,084 72 % |
|---|---|
| no | 5,030 28 % |
Schema version of the raw record (raw)
18,096| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 16,078 89 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 1,016 5.6 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 440 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
18,114| no | 16,813 93 % |
|---|---|
| yes | 1,301 7.2 % |
Per property, the measured values inside this excerpt. The share refers to the 18,114 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. 18,114 entries at 200 each are 91 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 9,551 to 9,600 of 18,114
| USPTO Patents | io.github.guptaprakhariitr/uspto-patents-mcp |
|---|---|
| UUID Generator API | io.github.Br0ski777/uuid-generator |
| UX-Auditor-Pro | io.github.Evozim/ux-auditor-pro |
| Ua E Commerce Price Tracker Mcp | io.github.varvararatta/ua_e_commerce_price_tracker_mcp |
| Ua Postal Tracking Mcp | io.github.varvararatta/ua_postal_tracking_mcp |
| Uber Conta by Digio MCP | io.github.mcp-dir/ubercontabydigio-mcp |
| Ubersuggest | com.neilpatelapi/ubersuggest |
| Udbud Dk | io.github.pipeworx-io/udbud-dk |
| Uganda Payments (Flutterwave — MTN MoMo) | app.wishpool/uganda-payments-mcp |
| Uindow | io.github.uindow/uindow |
| Uk Contracts | io.github.pipeworx-io/uk-contracts |
| Uk Food Hygiene | io.github.pipeworx-io/uk-food-hygiene |
| Uk Gazette | io.github.pipeworx-io/uk-gazette |
| Uk Ons | io.github.pipeworx-io/uk-ons |
| Uk Parliament | io.github.pipeworx-io/uk-parliament |
| Uk Postcodes Mcp | io.github.varvararatta/uk_postcodes_mcp |
| Ukhsa | io.github.pipeworx-io/ukhsa |
| Ukraine Payments (LiqPay — LiqPay cards / Apple Pay) | app.wishpool/ukraine-payments-mcp |
| UkraineBorder — travel guidance and war-risk insurance | com.ukraineborder/ukraine-travel |
| Ukri Gtr | io.github.pipeworx-io/ukri-gtr |
| Ulid | io.github.pipeworx-io/ulid |
| Ultiplace | io.github.Realitim/ultiplace-mcp |
| Ultra Prompt | co.ultraprompt/ultra-prompt |
| UltraMemory | io.github.LogicLabsAI/ultramemory-mcp |
| Umbra | io.github.elberacasa/umbra |
| Umesh Malik Blog & Profile | com.umesh-malik/blog-mcp |
| Umlout | io.github.dmkorj/umlout |
| Un Sdg | io.github.pipeworx-io/un-sdg |
| Un-Default | io.github.NomadBuilder/un-default |
| UnboxAPI — Hospitality Reservation MCP Server | io.github.founder-OmniPA/unboxapi |
| Understand Anything - MCP | io.github.uamcp/ua-mcp |
| Undertow market liquidity and exit-cost tools | io.github.beepboop2025/undertow |
| Uneed | best.uneed/directory |
| Unesco Uis | io.github.pipeworx-io/unesco-uis |
| UnfoldIP Patent Search | com.unfoldip/patent-search |
| Unhcr | io.github.pipeworx-io/unhcr |
| UniAffitti Room Finder | com.uniaffitti.www/room-finder |
| UniBio Intelligence | io.github.unibio-intelligence/ubi |
| UniProt MCP | io.github.josefdc/uniprot-mcp |
| Unicef | io.github.pipeworx-io/unicef |
| Unicode | io.github.pipeworx-io/unicode |
| Unicred MCP | io.github.mcp-dir/unicred-mcp |
| UnifAPI | com.unifapi/mcp |
| Unified AI System MCP Gateway | io.github.happy520ai/unified-ai-system |
| Unified Offer Protocol MCP Server | com.unifiedoffer/mcp-server |
| Unified Offer Protocol MCP Server | io.github.Chris85appding/unified-offer-protocol |
| Uniprot | io.github.pipeworx-io/uniprot |
| Unit & Currency Converter | io.github.guptaprakhariitr/unit-converter-mcp |
| Unit Converter API | io.github.Br0ski777/unit-converter |
| United Arab Emirates Payments (Tap Payments — Apple Pay / cards) | app.wishpool/uae-payments-mcp |
All 18,114 entries in the list, with filters and pagination
tracevero · https://tracevero.com/en/themen/ohne-umgebungsvariablen?seite=192