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)
16,384| remote | 10,269 63 % |
|---|---|
| paket | 5,249 32 % |
| paket und remote | 496 3.0 % |
| keines | 370 2.3 % |
not recorded for 18 entries
Execution location
16,402| remote | 10,395 63 % |
|---|---|
| local | 6,007 37 % |
Repository platform (raw)
16,384| github | 12,030 73 % |
|---|---|
| nothing declared | 4,335 26 % |
| gitlab | 19 0.1 % |
not recorded for 18 entries
Repository URL listed
16,402| yes | 12,060 74 % |
|---|---|
| no | 4,342 26 % |
Schema version of the raw record (raw)
16,384| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 14,436 88 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 959 5.8 % |
| https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json | 433 2.6 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 429 2.6 % |
| 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
16,402| no | 15,145 92 % |
|---|---|
| yes | 1,257 7.7 % |
Per property, the measured values inside this excerpt. The share refers to the 16,402 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. 16,402 entries at 200 each are 83 requests; the total is in the X-Gesamt header.
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 2,151 to 2,200 of 16,402
| Data Edmonton | io.github.pipeworx-io/data-edmonton |
|---|---|
| Data Energystar | io.github.pipeworx-io/data-energystar |
| Data Enrichment & Web Scraper API | io.github.Mila-Petrovich/data-enrichment |
| Data Europa | io.github.pipeworx-io/data-europa |
| Data Fcc | io.github.pipeworx-io/data-fcc |
| Data Fortworth | io.github.pipeworx-io/data-fortworth |
| Data Fulton | io.github.pipeworx-io/data-fulton |
| Data Gov In | io.github.pipeworx-io/data-gov-in |
| Data Gov Sg | io.github.pipeworx-io/data-gov-sg |
| Data Govt Nz | io.github.pipeworx-io/data-govt-nz |
| Data Gr | io.github.pipeworx-io/data-gr |
| Data Howardcounty | io.github.pipeworx-io/data-howardcounty |
| Data Iledefrance | io.github.pipeworx-io/data-iledefrance |
| Data Issy | io.github.pipeworx-io/data-issy |
| Data Kcmo | io.github.pipeworx-io/data-kcmo |
| Data Kingcounty | io.github.pipeworx-io/data-kingcounty |
| Data La | io.github.pipeworx-io/data-la |
| Data Lv | io.github.pipeworx-io/data-lv |
| Data Mesa | io.github.pipeworx-io/data-mesa |
| Data Michigan | io.github.pipeworx-io/data-michigan |
| Data Mo | io.github.pipeworx-io/data-mo |
| Data Montgomery | io.github.pipeworx-io/data-montgomery |
| Data Montreal | io.github.pipeworx-io/data-montreal |
| Data Nantes | io.github.pipeworx-io/data-nantes |
| Data Nashville | io.github.pipeworx-io/data-nashville |
| Data Nj | io.github.pipeworx-io/data-nj |
| Data Nl | io.github.pipeworx-io/data-nl |
| Data Nola | io.github.pipeworx-io/data-nola |
| Data Norfolk | io.github.pipeworx-io/data-norfolk |
| Data Novascotia | io.github.pipeworx-io/data-novascotia |
| Data Ny | io.github.pipeworx-io/data-ny |
| Data Oakland | io.github.pipeworx-io/data-oakland |
| Data Observability | io.github.Evozim/data-observability |
| Data Orlando | io.github.pipeworx-io/data-orlando |
| Data Pa | io.github.pipeworx-io/data-pa |
| Data Paris | io.github.pipeworx-io/data-paris |
| Data Piercecounty | io.github.pipeworx-io/data-piercecounty |
| Data Profiler | io.github.Ridadata/mcp-data-profiler |
| Data Providence | io.github.pipeworx-io/data-providence |
| Data Quality Gate - deterministic post-scrape cleaner + verdict | io.github.aidatatools-dev/data-quality-gate |
| Data Rennes | io.github.pipeworx-io/data-rennes |
| Data Reunion | io.github.pipeworx-io/data-reunion |
| Data Santaclara | io.github.pipeworx-io/data-santaclara |
| Data Seattle | io.github.pipeworx-io/data-seattle |
| Data Sf | io.github.pipeworx-io/data-sf |
| Data Sncf | io.github.pipeworx-io/data-sncf |
| Data Sonoma | io.github.pipeworx-io/data-sonoma |
| Data Studio | io.github.geek-fun/data-studio |
| Data Toronto | io.github.pipeworx-io/data-toronto |
| Data Toulouse | io.github.pipeworx-io/data-toulouse |
All 16,402 entries in the list, with filters and pagination
tracevero · https://tracevero.com/en/themen/ohne-umgebungsvariablen?seite=44