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
- 22,620 66 % Repository URL listed: yes
- 25,358 74 % Execution location: remote
- 22,536 66 % Repository platform (raw): github
- 25,207 73 % Delivery form (raw): remote
The most frequent value per property, counted across the entries of this category. The full distribution is further down.
Entries
Filter further
- Execution location: local
- Execution location: remote
- Required secrets declared: no
- Required secrets declared: yes
- Repository URL listed: yes
- Repository URL listed: no
- recently updated first
Entries 16,001 to 16,050 of 34,377
| REAPER MCP | com.twelvetake/reaper-mcp |
|---|---|
| RECOVER — Decide Safely After a Failed Machine Action | io.github.GSterlingPress/recover |
| REPSLog | com.reps-log/repslog |
| RESET Verifica | com.resetparatodos/verifica |
| REST Countries MCP by UnClick | io.github.malamutemayhem/restcountries |
| REVIEWS.io MCP by usefulapi | io.usefulapi/reviews-io |
| RFC 2047 encoded-word shape, input discarded | io.github.sadri-dridi/quoted-ok |
| RFC 3339 UTC stamp | io.github.sadri-dridi/rfc3339-now |
| RFC 3986 unreserved charset, input discarded | io.github.sadri-dridi/rfc3986-ok |
| RFC 6838 media type shape | io.github.sadri-dridi/media-type-ok |
| RFC errata id shape, value discarded | io.github.sadri-dridi/rfc-errata-ok |
| RFC number shape | io.github.sadri-dridi/rfc-number-ok |
| RFC section number shape | io.github.sadri-dridi/rfc-section-ok |
| RFP.ai | ai.rfp/rfp-ai |
| RFQdecoder | io.github.Mounirt879/rfqdecoder |
| RFix | ai.rfix/mcp |
| RGB tuple shape | io.github.sadri-dridi/color-rgb-ok |
| RIED.TAXI | taxi.ried/booking |
| RIFK public knowledge | hr.rifk/public-knowledge |
| RIPEMD hex length, input discarded | io.github.sadri-dridi/ripemd-len |
| RIPEMD-160 hex length, input discarded | io.github.sadri-dridi/ripemd160 |
| RIRLift | com.rirlift/rirlift |
| RIS tag count, body discarded | io.github.sadri-dridi/ris-ok |
| RIVET / AliEV EV Charging Site Intelligence | io.github.jgaethle10/aliev |
| RLM Tools | io.github.stefanoshea/rlm-tools |
| RMCP | dev.rmcp/rmcp |
| RNCP / RS — certifications professionnelles (France compétences) | io.github.ALDEBERTArnaud/mcp-rncp |
| RNWY Trust Intelligence | io.github.rnwy/mcp |
| ROASTED | io.github.jgaethle10/roasted |
| ROBINS-I V2 MCP | com.blackswancausallabs/robins-i-mcp |
| ROBOTio — humanoid robots for events | cz.robotio/event-robots |
| ROIC.AI Financial Data | ai.roic/roic |
| ROKI Connect | la.roki/connect |
| ROO$TER Agent Economy — Hire Humans to Post | ai.roosteragents/agent-economy |
| ROOT MCP Server | io.github.omazapa/root-mcp |
| ROOTE | ai.roote/mcp |
| ROSTER | jp.co.roster/mcp |
| ROT13 encode, input discarded | io.github.sadri-dridi/rot13-ok |
| ROT47 charset transform length, input discarded | io.github.sadri-dridi/rot47-ok |
| ROT5 digit transform length, input discarded | io.github.sadri-dridi/rot5-ok |
| RPCS-1 Agent Tuner & Translation Bridge | io.github.travisbergen2/rpcs1-agent-tuner |
| RPM to hertz, number discarded | io.github.sadri-dridi/rpm-hz |
| RPM to rad/s, number discarded | io.github.sadri-dridi/rpm-rad |
| RPN Calculator | com.apished/rpn-calculator |
| RPV Calculator | io.github.pieterjanscheir/rpv-calculator |
| RQM Jobs MCP | com.rqmtechnologies/jobs |
| RQM Robotics Jobs | com.rqmtechnologies/robotics |
| RQM Studio Jobs | com.rqmtechnologies/studio |
| RQM WaveEngine Jobs | com.rqmtechnologies/waveengine |
| RSS Keyword Monitor | io.github.telemarkdigital-publisher/rss-keyword-monitor |
All 34,377 entries in the list, with filters and pagination
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| github | 22,536 66 % |
|---|---|
| nothing declared | 11,750 34 % |
| gitlab | 73 0.2 % |
not recorded for 18 entries
Repository URL listed
34,377| yes | 22,620 66 % |
|---|---|
| no | 11,757 34 % |
Delivery form (raw)
34,359| remote | 25,207 73 % |
|---|---|
| package | 7,921 23 % |
| package and remote | 734 2.1 % |
| neither | 497 1.4 % |
not recorded for 18 entries
Execution location
34,377| remote | 25,358 74 % |
|---|---|
| local | 9,019 26 % |
Icon formats (raw)
34,359| nothing declared | 30,450 89 % |
|---|---|
| image/png | 2,354 6.8 % |
| image/png, image/svg+xml | 811 2.4 % |
| image/svg+xml | 656 1.9 % |
| image/webp | 47 0.1 % |
| image/jpeg | 31 0.1 % |
and 6 more values · not recorded for 18 entries
Schema version of the raw record (raw)
34,359| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 31,958 93 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 1,271 3.7 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 499 1.5 % |
| https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json | 491 1.4 % |
| https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json | 132 0.4 % |
| https://static.modelcontextprotocol.org/schemas/2025-12-11/server.schema.json | 3 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
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=321