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)
17,568| remote | 11,379 65 % |
|---|---|
| paket | 5,303 30 % |
| paket und remote | 511 2.9 % |
| keines | 375 2.1 % |
not recorded for 18 entries
Execution location
17,586| remote | 11,508 65 % |
|---|---|
| local | 6,078 35 % |
Repository platform (raw)
17,568| github | 12,620 72 % |
|---|---|
| nothing declared | 4,929 28 % |
| gitlab | 19 0.1 % |
not recorded for 18 entries
Repository URL listed
17,586| yes | 12,650 72 % |
|---|---|
| no | 4,936 28 % |
Schema version of the raw record (raw)
17,568| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 15,556 88 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 1,012 5.8 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 438 2.5 % |
| https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json | 435 2.5 % |
| 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
17,586| no | 16,301 93 % |
|---|---|
| yes | 1,285 7.3 % |
Per property, the measured values inside this excerpt. The share refers to the 17,586 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. 17,586 entries at 200 each are 88 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 5,951 to 6,000 of 17,586
| OECD MCP Server | io.github.isakskogstad/oecd-mcp |
|---|---|
| OFAC (Sanções EUA) | io.github.mcp-dir/ofac-mcp |
| OFAC SDN Screening | com.bonissystems/ofac-sdn-screening |
| OFACScreen Sanctions Screening | com.ofacscreen/screening |
| OGA Antibody Validation | io.github.onlygoodantibodies/oga-antibodies |
| OGForge MCP | io.github.dpozimski/ogforge-mcp |
| OKR Studio | io.okrstud/mcp |
| OKX MCP Server | io.github.aahl/mcp-okx |
| OMDb Movies MCP by UnClick | io.github.malamutemayhem/omdb |
| OMEGA Memory | io.github.omega-memory/omega-memory |
| ONCE | io.github.GSterlingPress/once |
| ONE HEART eSIM | com.oneheartesim.mcp/esim |
| OOTWOracle — Psychedelic Medicine Intelligence | com.ootworacle.www/predictions-server |
| OPC UA Modeler | io.github.node-opcua/node-opcua-modeler-mcp-server |
| ORA · ORUM | io.github.fomosdeimos-gif/ora-mcp |
| OSRS Calc MCP | io.github.rocnubie/osrs-calc-mcp |
| OT AIops | io.github.AIops-tools/ot-aiops |
| OTC Pricing MCP | io.github.seaser0/otc-pricing-mcp |
| OVHcloud | com.ovhcloud.eu.mcp/api |
| OVRSEA Shipments | com.ovrsea.mcp/customer-mcp |
| Oakallow | io.github.oakallow/oakallow |
| OathReady: Canadian Citizenship Test | ca.oathready/citizenship-test |
| Obato | eu.obato/obato-mcp |
| Obis | io.github.pipeworx-io/obis |
| Oblique Markets | markets.oblique.api/oblique-markets |
| Obriym CRM | com.obriym-crm/mcp |
| Obscura MCP | io.github.Metadrama/obscura-mcp |
| Observability AIops | io.github.AIops-tools/observability-aiops |
| Obsidian Everywhere | io.github.junnnnnw00/obsidian-everywhere |
| Obsidian MCP | io.github.seynurmammad0v/obsidian-mcp |
| Obsidian Regulatory MCP | io.github.richbile/obsidian-regulatory-mcp |
| Occam | fit.occam/occam |
| Occludra — MCP Gateway (AI Security Gateway) | ai.occludra/mcp-gateway |
| Ocrspace | io.github.pipeworx-io/ocrspace |
| OctoTrip Flights | app.octotrip/flights |
| OctoTrip Rental Cars | app.octotrip/rental-cars |
| Octobrain | io.github.Muvon/octobrain |
| Octocode | io.github.Muvon/octocode |
| Octodamus Intelligence Oracle | io.github.Octodamus/market-intelligence |
| Octofs | io.github.Muvon/octofs |
| Octopad | app.octopad/octopad |
| Octoparse MCP Server | com.octoparse/octoparse-mcp |
| Octopus Energy | io.github.pipeworx-io/octopus-energy |
| Octura Solutions Site Tools | com.octurasolutions/site-tools |
| Odds Api | io.github.pipeworx-io/odds-api |
| Odoo | io.github.pipeworx-io/odoo |
| OeBB (Austrian Railways) | io.github.slettmayer/oebb-mcp-server |
| Oecd | io.github.pipeworx-io/oecd |
| Oeis | io.github.pipeworx-io/oeis |
| Off-Nadir Delta | com.offnadir-delta/mcp |
All 17,586 entries in the list, with filters and pagination
tracevero · https://tracevero.com/en/themen/ohne-umgebungsvariablen?seite=120