MCP servers with declared required secrets
MCP servers for which the registry lists at least one environment variable or header marked secret and required. Both pieces of original data stand beside it.
6,067 servers 14% of 41,867 in the directory
This category in numbers
- 3,818 63 % Execution location: local
- 4,743 78 % Repository URL listed: yes
- 3,078 51 % Delivery form (raw): package
- 4,738 78 % Repository platform (raw): github
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
- Repository URL listed: yes
- Repository URL listed: no
- recently updated first
Entries 5,051 to 5,100 of 6,067
All 6,067 entries in the list, with filters and pagination
What this category selects
| Required secrets declared | yes derived from: Required secret variables (raw) |
|---|
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
- Required secrets declared is not declared but computed: from Required secret variables (raw), Required secret headers (raw). The rule is published, with a version, on the methodology page.
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
Delivery form (raw)
6,067| package | 3,078 51 % |
|---|---|
| remote | 2,188 36 % |
| package and remote | 801 13 % |
Execution location
6,067| local | 3,818 63 % |
|---|---|
| remote | 2,249 37 % |
Repository platform (raw)
6,067| github | 4,738 78 % |
|---|---|
| nothing declared | 1,324 22 % |
| gitlab | 5 0.1 % |
Repository URL listed
6,067| yes | 4,743 78 % |
|---|---|
| no | 1,324 22 % |
Icon formats (raw)
6,067| nothing declared | 5,421 89 % |
|---|---|
| image/png | 415 6.8 % |
| image/svg+xml | 163 2.7 % |
| image/png, image/svg+xml | 65 1.1 % |
| image/jpeg | 2 0.0 % |
| image/png, image/webp | 1 0.0 % |
Schema version of the raw record (raw)
6,067| https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | 5,544 91 % |
|---|---|
| https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json | 367 6.0 % |
| https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json | 114 1.9 % |
| https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | 32 0.5 % |
| https://static.modelcontextprotocol.io/schemas/2025-09-16/server.schema.json | 9 0.1 % |
| https://static.modelcontextprotocol.org/schemas/2025-12-11/server.schema.json | 1 0.0 % |
Per property, the measured values inside this category. The share refers to the 6,067 entries of the category, not to the registry. Shown are 6 of 7 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&zugangsdaten_erforderlich=true&grenze=200"
The command carries exactly the condition of this page. 6,067 entries at 200 each are 31 requests; the total is in the X-Gesamt header.
Changes to these entries
https://tracevero.com/aenderungen.atom?thema=mit-zugangsdaten
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/mit-zugangsdaten?seite=102